From 20acb2c9b0696746f00dc5a4d760cd423c9066a5 Mon Sep 17 00:00:00 2001
From: sreddyba-amzn <sreddyba@amazon.com>
Date: Mon, 12 Oct 2026 10:32:15 -0700
Subject: [PATCH] New Adapter: APS (#4999)

---
 adapters/aps/aps.go                           | 297 ++++++++++
 adapters/aps/aps_test.go                      |  25 +
 .../aps/apstest/exemplary/multi-slot.json     | 158 ++++++
 .../apstest/exemplary/multiformat-imp.json    | 116 ++++
 .../aps/apstest/exemplary/single-banner.json  | 112 ++++
 .../aps/apstest/exemplary/single-video.json   | 104 ++++
 .../banner-partial-size-overwrite.json        |  74 +++
 .../defaults-currency-to-usd.json             | 111 ++++
 .../supplemental/region-na-explicit.json      |  73 +++
 .../rejects-mismatched-account.json           |  38 ++
 .../rejects-unsupported-region.json           |  34 ++
 .../supplemental/requires-account.json        |  31 +
 .../supplemental/resolves-eu-region.json      |  79 +++
 .../aps/apstest/supplemental/status-204.json  |  56 ++
 .../aps/apstest/supplemental/status-400.json  |  62 ++
 .../aps/apstest/supplemental/status-500.json  |  63 +++
 .../supplemental/strips-sensitive-data.json   | 129 +++++
 .../supplemental/test-mode-appends-debug.json |  64 +++
 adapters/aps/params_test.go                   |  54 ++
 exchange/adapter_builders.go                  | 533 +++++++++---------
 openrtb_ext/bidders.go                        |   2 +
 openrtb_ext/imp_aps.go                        |   7 +
 static/bidder-info/aps.yaml                   |  13 +
 static/bidder-params/aps.json                 |  18 +
 24 files changed, 1996 insertions(+), 257 deletions(-)
 create mode 100644 adapters/aps/aps.go
 create mode 100644 adapters/aps/aps_test.go
 create mode 100644 adapters/aps/apstest/exemplary/multi-slot.json
 create mode 100644 adapters/aps/apstest/exemplary/multiformat-imp.json
 create mode 100644 adapters/aps/apstest/exemplary/single-banner.json
 create mode 100644 adapters/aps/apstest/exemplary/single-video.json
 create mode 100644 adapters/aps/apstest/supplemental/banner-partial-size-overwrite.json
 create mode 100644 adapters/aps/apstest/supplemental/defaults-currency-to-usd.json
 create mode 100644 adapters/aps/apstest/supplemental/region-na-explicit.json
 create mode 100644 adapters/aps/apstest/supplemental/rejects-mismatched-account.json
 create mode 100644 adapters/aps/apstest/supplemental/rejects-unsupported-region.json
 create mode 100644 adapters/aps/apstest/supplemental/requires-account.json
 create mode 100644 adapters/aps/apstest/supplemental/resolves-eu-region.json
 create mode 100644 adapters/aps/apstest/supplemental/status-204.json
 create mode 100644 adapters/aps/apstest/supplemental/status-400.json
 create mode 100644 adapters/aps/apstest/supplemental/status-500.json
 create mode 100644 adapters/aps/apstest/supplemental/strips-sensitive-data.json
 create mode 100644 adapters/aps/apstest/supplemental/test-mode-appends-debug.json
 create mode 100644 adapters/aps/params_test.go
 create mode 100644 openrtb_ext/imp_aps.go
 create mode 100644 static/bidder-info/aps.yaml
 create mode 100644 static/bidder-params/aps.json

diff --git a/adapters/aps/aps.go b/adapters/aps/aps.go
new file mode 100644
index 000000000..6c9b88a87
--- /dev/null
+++ b/adapters/aps/aps.go
@@ -0,0 +1,297 @@
+package aps
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+	"text/template"
+
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v4/adapters"
+	"github.com/prebid/prebid-server/v4/config"
+	"github.com/prebid/prebid-server/v4/errortypes"
+	"github.com/prebid/prebid-server/v4/macros"
+	"github.com/prebid/prebid-server/v4/openrtb_ext"
+	"github.com/prebid/prebid-server/v4/util/jsonutil"
+)
+
+const adapterVersion = "1.0.0"
+
+const defaultRegion = "na"
+
+var validRegions = map[string]struct{}{"na": {}, "eu": {}, "fe": {}}
+
+type adapter struct {
+	endpoint *template.Template
+}
+
+type apsSDKExt struct {
+	Version string `json:"version"`
+	Source  string `json:"source"`
+}
+
+// Builder builds a new instance of the Aps adapter for the given bidder with the given config.
+func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
+	endpoint, err := template.New("apsEndpoint").Parse(config.Endpoint)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse APS endpoint template: %v", err)
+	}
+	return &adapter{endpoint: endpoint}, nil
+}
+
+// MakeRequests builds the APS request. Sample OpenRTB request this adapter accepts (dummy values):
+//
+//	{
+//	  "id": "req-1",
+//	  "test": 1,
+//	  "site": {"page": "https://example.com"},
+//	  "imp": [
+//	    {"id": "imp-1", "banner": {"format": [{"w": 300, "h": 250}]},
+//	     "ext": {"prebid": {"bidder": {"aps": {"accountID": "1234", "region": "na"}}}}},
+//	    {"id": "imp-2", "video": {"mimes": ["video/mp4"], "w": 640, "h": 480, "protocols": [2, 3, 5, 6]},
+//	     "ext": {"prebid": {"bidder": {"aps": {"accountID": "1234"}}}}}
+//	  ]
+//	}
+//
+// accountID is a per-imp bidder param (or set once via ext.prebid.bidderparams.aps.accountID); all imps
+// must resolve to the same account. region is an optional per-imp param (default na); it fills the
+// endpoint macro and is validated against a fixed set of valid regions (na, eu, fe); others are rejected.
+// test:1 appends amzn_debug_mode=1 to the endpoint.
+func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+	var errors []error
+	validImps := make([]openrtb2.Imp, 0, len(request.Imp))
+	accountID := ""
+	region := defaultRegion
+
+	for _, imp := range request.Imp {
+		impAccountID, impRegion, err := parseImpParams(imp)
+		if err != nil {
+			errors = append(errors, err)
+			continue
+		}
+		if accountID == "" {
+			accountID = impAccountID
+		} else if accountID != impAccountID {
+			errors = append(errors, &errortypes.BadInput{
+				Message: fmt.Sprintf("imp %q: all imps in a request must use the same APS accountID (got %q and %q)",
+					imp.ID, accountID, impAccountID),
+			})
+			return nil, errors
+		}
+		region = impRegion
+
+		if imp.Banner != nil {
+			imp = backfillBannerSize(imp)
+		}
+		validImps = append(validImps, imp)
+	}
+
+	if len(validImps) == 0 {
+		return nil, errors
+	}
+
+	data, err := a.makeRequest(*request, validImps, accountID, region)
+	if err != nil {
+		errors = append(errors, err)
+		return nil, errors
+	}
+
+	return []*adapters.RequestData{data}, errors
+}
+
+func parseImpParams(imp openrtb2.Imp) (accountID string, region string, err error) {
+	var bidderExt adapters.ExtImpBidder
+	if err := jsonutil.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		return "", "", &errortypes.BadInput{Message: fmt.Sprintf("imp %q: invalid imp.ext: %s", imp.ID, err)}
+	}
+
+	var apsExt openrtb_ext.ExtImpAps
+	if err := jsonutil.Unmarshal(bidderExt.Bidder, &apsExt); err != nil {
+		return "", "", &errortypes.BadInput{Message: fmt.Sprintf("imp %q: invalid aps bidder params: %s", imp.ID, err)}
+	}
+
+	accountID = strings.TrimSpace(apsExt.AccountID)
+	if accountID == "" {
+		return "", "", &errortypes.BadInput{Message: fmt.Sprintf("imp %q: the APS bidder param \"accountID\" is required", imp.ID)}
+	}
+
+	region = strings.TrimSpace(apsExt.Region)
+	if region == "" {
+		region = defaultRegion
+	}
+	if _, ok := validRegions[region]; !ok {
+		return "", "", &errortypes.BadInput{Message: fmt.Sprintf("imp %q: invalid APS region %q", imp.ID, region)}
+	}
+	return accountID, region, nil
+}
+
+func (a *adapter) makeRequest(request openrtb2.BidRequest, imps []openrtb2.Imp, accountID string, region string) (*adapters.RequestData, error) {
+	request.Imp = imps
+
+	sanitizeUserObject(&request)
+	sanitizeDeviceObject(&request)
+
+	if len(request.Cur) == 0 {
+		request.Cur = []string{"USD"}
+	}
+
+	if err := applyRequestExt(&request, accountID); err != nil {
+		return nil, err
+	}
+
+	requestJSON, err := jsonutil.Marshal(&request)
+	if err != nil {
+		return nil, err
+	}
+
+	uri, err := macros.ResolveMacros(a.endpoint, macros.EndpointTemplateParams{Region: region})
+	if err != nil {
+		return nil, err
+	}
+	if request.Test == 1 {
+		uri = appendDebugMode(uri)
+	}
+
+	return &adapters.RequestData{
+		Method: http.MethodPost,
+		Uri:    uri,
+		Body:   requestJSON,
+		ImpIDs: openrtb_ext.GetImpIDs(request.Imp),
+	}, nil
+}
+
+// appendDebugMode appends the amzn_debug_mode=1 query param for test requests (bidRequest.test == 1).
+func appendDebugMode(endpoint string) string {
+	separator := "?"
+	if strings.Contains(endpoint, "?") {
+		separator = "&"
+	}
+	return endpoint + separator + "amzn_debug_mode=1"
+}
+
+func backfillBannerSize(imp openrtb2.Imp) openrtb2.Imp {
+	banner := imp.Banner
+	if len(banner.Format) == 0 {
+		return imp
+	}
+	if banner.W != nil && banner.H != nil {
+		return imp
+	}
+
+	format := banner.Format[0]
+	w := format.W
+	h := format.H
+	modifiedBanner := *banner
+	modifiedBanner.W = &w
+	modifiedBanner.H = &h
+	imp.Banner = &modifiedBanner
+	return imp
+}
+
+func sanitizeUserObject(request *openrtb2.BidRequest) {
+	if request.User != nil {
+		modifiedUser := *request.User
+		modifiedUser.Gender = ""
+		modifiedUser.Yob = 0
+		modifiedUser.CustomData = ""
+		modifiedUser.Geo = nil
+		request.User = &modifiedUser
+	}
+}
+
+func sanitizeDeviceObject(request *openrtb2.BidRequest) {
+	if request.Device != nil && request.Device.Geo != nil {
+		modifiedGeo := *request.Device.Geo
+		modifiedGeo.Lat = nil
+		modifiedGeo.Lon = nil
+		modifiedDevice := *request.Device
+		modifiedDevice.Geo = &modifiedGeo
+		request.Device = &modifiedDevice
+	}
+}
+
+func applyRequestExt(request *openrtb2.BidRequest, accountID string) error {
+	extMap := map[string]json.RawMessage{}
+	if len(request.Ext) > 0 {
+		if err := jsonutil.Unmarshal(request.Ext, &extMap); err != nil {
+			return &errortypes.BadInput{Message: err.Error()}
+		}
+	}
+
+	account, err := jsonutil.Marshal(accountID)
+	if err != nil {
+		return err
+	}
+	extMap["account"] = account
+
+	sdk, err := jsonutil.Marshal(apsSDKExt{Version: adapterVersion, Source: "prebid-server"})
+	if err != nil {
+		return err
+	}
+	extMap["sdk"] = sdk
+
+	ext, err := jsonutil.Marshal(extMap)
+	if err != nil {
+		return err
+	}
+	request.Ext = ext
+	return nil
+}
+
+func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+	if responseData.StatusCode == http.StatusNoContent {
+		return nil, nil
+	}
+
+	if responseData.StatusCode == http.StatusBadRequest {
+		return nil, []error{&errortypes.BadInput{
+			Message: "Unexpected status code: 400. Bad request from publisher.",
+		}}
+	}
+
+	if responseData.StatusCode != http.StatusOK {
+		return nil, []error{&errortypes.BadServerResponse{
+			Message: fmt.Sprintf("Unexpected status code: %d.", responseData.StatusCode),
+		}}
+	}
+
+	var response openrtb2.BidResponse
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
+		return nil, []error{err}
+	}
+
+	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
+	if response.Cur != "" {
+		bidResponse.Currency = response.Cur
+	}
+	var errors []error
+	for _, seatBid := range response.SeatBid {
+		for i := range seatBid.Bid {
+			bidType, err := getMediaTypeForBid(seatBid.Bid[i])
+			if err != nil {
+				errors = append(errors, err)
+				continue
+			}
+			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
+				Bid:     &seatBid.Bid[i],
+				BidType: bidType,
+			})
+		}
+	}
+
+	return bidResponse, errors
+}
+
+func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
+	switch bid.MType {
+	case openrtb2.MarkupBanner:
+		return openrtb_ext.BidTypeBanner, nil
+	case openrtb2.MarkupVideo:
+		return openrtb_ext.BidTypeVideo, nil
+	default:
+		return "", &errortypes.BadServerResponse{
+			Message: fmt.Sprintf("Unsupported MType %d for impression %q", bid.MType, bid.ImpID),
+		}
+	}
+}
diff --git a/adapters/aps/aps_test.go b/adapters/aps/aps_test.go
new file mode 100644
index 000000000..80f92f752
--- /dev/null
+++ b/adapters/aps/aps_test.go
@@ -0,0 +1,25 @@
+package aps
+
+import (
+	"testing"
+
+	"github.com/prebid/prebid-server/v4/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v4/config"
+	"github.com/prebid/prebid-server/v4/openrtb_ext"
+)
+
+func TestJsonSamples(t *testing.T) {
+	bidder, buildErr := Builder(
+		openrtb_ext.BidderAps,
+		config.Adapter{
+			Endpoint: "https://s2s.prebid.bid-{{.Region}}.ads.aps.amazon-adsystem.com/e/pb/bid",
+		},
+		config.Server{ExternalUrl: "http://hosturl.com", GvlID: 793, DataCenter: "2"},
+	)
+
+	if buildErr != nil {
+		t.Fatalf("Builder returned unexpected error %v", buildErr)
+	}
+
+	adapterstest.RunJSONBidderTest(t, "apstest", bidder)
+}
diff --git a/adapters/aps/apstest/exemplary/multi-slot.json b/adapters/aps/apstest/exemplary/multi-slot.json
new file mode 100644
index 000000000..a0cfb7674
--- /dev/null
+++ b/adapters/aps/apstest/exemplary/multi-slot.json
@@ -0,0 +1,158 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "slot-banner",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      },
+      {
+        "id": "slot-video",
+        "video": {
+          "mimes": [
+            "video/mp4"
+          ],
+          "w": 640,
+          "h": 480
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "slot-banner",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            },
+            {
+              "id": "slot-video",
+              "video": {
+                "mimes": [
+                  "video/mp4"
+                ],
+                "w": 640,
+                "h": 480
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "slot-banner",
+          "slot-video"
+        ]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "aps",
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "slot-banner",
+                  "price": 1.5,
+                  "adm": "<div>banner ad</div>",
+                  "crid": "creative-1",
+                  "mtype": 1,
+                  "w": 300,
+                  "h": 250
+                },
+                {
+                  "id": "2",
+                  "impid": "slot-video",
+                  "price": 2.5,
+                  "nurl": "https://vast.aps.amazon-adsystem.com/vast?id=2",
+                  "crid": "creative-2",
+                  "mtype": 2
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "slot-banner",
+            "price": 1.5,
+            "adm": "<div>banner ad</div>",
+            "crid": "creative-1",
+            "mtype": 1,
+            "w": 300,
+            "h": 250
+          },
+          "type": "banner"
+        },
+        {
+          "bid": {
+            "id": "2",
+            "impid": "slot-video",
+            "price": 2.5,
+            "nurl": "https://vast.aps.amazon-adsystem.com/vast?id=2",
+            "crid": "creative-2",
+            "mtype": 2
+          },
+          "type": "video"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/exemplary/multiformat-imp.json b/adapters/aps/apstest/exemplary/multiformat-imp.json
new file mode 100644
index 000000000..5f8fb67d0
--- /dev/null
+++ b/adapters/aps/apstest/exemplary/multiformat-imp.json
@@ -0,0 +1,116 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "video": {
+          "mimes": [
+            "video/mp4"
+          ],
+          "w": 640,
+          "h": 480
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "w": 300,
+                "h": 250
+              },
+              "video": {
+                "mimes": [
+                  "video/mp4"
+                ],
+                "w": 640,
+                "h": 480
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "aps",
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "test-imp-id",
+                  "price": 1.5,
+                  "adm": "<div>banner ad</div>",
+                  "crid": "creative-1",
+                  "mtype": 1,
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "test-imp-id",
+            "price": 1.5,
+            "adm": "<div>banner ad</div>",
+            "crid": "creative-1",
+            "mtype": 1,
+            "w": 300,
+            "h": 250
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/exemplary/single-banner.json b/adapters/aps/apstest/exemplary/single-banner.json
new file mode 100644
index 000000000..80cebec75
--- /dev/null
+++ b/adapters/aps/apstest/exemplary/single-banner.json
@@ -0,0 +1,112 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "aps",
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "test-imp-id",
+                  "price": 1.5,
+                  "adm": "<div>banner ad</div>",
+                  "crid": "creative-1",
+                  "mtype": 1,
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "test-imp-id",
+            "price": 1.5,
+            "adm": "<div>banner ad</div>",
+            "crid": "creative-1",
+            "mtype": 1,
+            "w": 300,
+            "h": 250
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/exemplary/single-video.json b/adapters/aps/apstest/exemplary/single-video.json
new file mode 100644
index 000000000..63309a87a
--- /dev/null
+++ b/adapters/aps/apstest/exemplary/single-video.json
@@ -0,0 +1,104 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "video": {
+          "mimes": [
+            "video/mp4"
+          ],
+          "w": 640,
+          "h": 480
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "video": {
+                "mimes": [
+                  "video/mp4"
+                ],
+                "w": 640,
+                "h": 480
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "aps",
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "test-imp-id",
+                  "price": 2.5,
+                  "nurl": "https://vast.aps.amazon-adsystem.com/vast?id=1",
+                  "crid": "creative-2",
+                  "mtype": 2
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "test-imp-id",
+            "price": 2.5,
+            "nurl": "https://vast.aps.amazon-adsystem.com/vast?id=1",
+            "crid": "creative-2",
+            "mtype": 2
+          },
+          "type": "video"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/supplemental/banner-partial-size-overwrite.json b/adapters/aps/apstest/supplemental/banner-partial-size-overwrite.json
new file mode 100644
index 000000000..7225423f2
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/banner-partial-size-overwrite.json
@@ -0,0 +1,74 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "w": 300,
+          "format": [
+            {
+              "w": 728,
+              "h": 90
+            }
+          ]
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "w": 728,
+                "h": 90,
+                "format": [
+                  {
+                    "w": 728,
+                    "h": 90
+                  }
+                ]
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 204,
+        "body": {}
+      }
+    }
+  ],
+  "expectedBidResponses": []
+}
diff --git a/adapters/aps/apstest/supplemental/defaults-currency-to-usd.json b/adapters/aps/apstest/supplemental/defaults-currency-to-usd.json
new file mode 100644
index 000000000..265f05598
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/defaults-currency-to-usd.json
@@ -0,0 +1,111 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "aps",
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "test-imp-id",
+                  "price": 1.5,
+                  "adm": "<div>banner ad</div>",
+                  "crid": "creative-1",
+                  "mtype": 1,
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "test-imp-id",
+            "price": 1.5,
+            "adm": "<div>banner ad</div>",
+            "crid": "creative-1",
+            "mtype": 1,
+            "w": 300,
+            "h": 250
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/supplemental/region-na-explicit.json b/adapters/aps/apstest/supplemental/region-na-explicit.json
new file mode 100644
index 000000000..3d76aede9
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/region-na-explicit.json
@@ -0,0 +1,73 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account", "region": "na" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account", "region": "na" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 204,
+        "body": {}
+      }
+    }
+  ],
+  "expectedBidResponses": []
+}
diff --git a/adapters/aps/apstest/supplemental/rejects-mismatched-account.json b/adapters/aps/apstest/supplemental/rejects-mismatched-account.json
new file mode 100644
index 000000000..2a9b110e3
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/rejects-mismatched-account.json
@@ -0,0 +1,38 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "imp-1",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": { "accountID": "acct-1" }
+        }
+      },
+      {
+        "id": "imp-2",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": { "accountID": "acct-2" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [],
+  "expectedMakeRequestsErrors": [
+    {
+      "value": "imp \"imp-2\": all imps in a request must use the same APS accountID (got \"acct-1\" and \"acct-2\")",
+      "comparison": "literal"
+    }
+  ],
+  "expectedBidResponses": []
+}
diff --git a/adapters/aps/apstest/supplemental/rejects-unsupported-region.json b/adapters/aps/apstest/supplemental/rejects-unsupported-region.json
new file mode 100644
index 000000000..9b1253fd9
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/rejects-unsupported-region.json
@@ -0,0 +1,34 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "accountID": "test-account",
+            "region": "na.evil.com/"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [],
+  "expectedMakeRequestsErrors": [
+    {
+      "value": "imp \"test-imp-id\": invalid APS region \"na.evil.com/\"",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/supplemental/requires-account.json b/adapters/aps/apstest/supplemental/requires-account.json
new file mode 100644
index 000000000..da968534b
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/requires-account.json
@@ -0,0 +1,31 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {}
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [],
+  "expectedMakeRequestsErrors": [
+    {
+      "value": "imp \"test-imp-id\": the APS bidder param \"accountID\" is required",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/supplemental/resolves-eu-region.json b/adapters/aps/apstest/supplemental/resolves-eu-region.json
new file mode 100644
index 000000000..ecc3df1db
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/resolves-eu-region.json
@@ -0,0 +1,79 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "accountID": "test-account",
+            "region": "eu"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-eu.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": {
+                  "accountID": "test-account",
+                  "region": "eu"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 204,
+        "body": {}
+      }
+    }
+  ],
+  "expectedBidResponses": []
+}
diff --git a/adapters/aps/apstest/supplemental/status-204.json b/adapters/aps/apstest/supplemental/status-204.json
new file mode 100644
index 000000000..0655d294f
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/status-204.json
@@ -0,0 +1,56 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 204
+      }
+    }
+  ],
+  "expectedBidResponses": []
+}
diff --git a/adapters/aps/apstest/supplemental/status-400.json b/adapters/aps/apstest/supplemental/status-400.json
new file mode 100644
index 000000000..05db0f758
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/status-400.json
@@ -0,0 +1,62 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 400
+      }
+    }
+  ],
+  "expectedBidResponses": [],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Unexpected status code: 400. Bad request from publisher.",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/supplemental/status-500.json b/adapters/aps/apstest/supplemental/status-500.json
new file mode 100644
index 000000000..b120922e6
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/status-500.json
@@ -0,0 +1,63 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 500,
+        "body": "Server error"
+      }
+    }
+  ],
+  "expectedBidResponses": [],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Unexpected status code: 500.",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/supplemental/strips-sensitive-data.json b/adapters/aps/apstest/supplemental/strips-sensitive-data.json
new file mode 100644
index 000000000..8e5a3cebf
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/strips-sensitive-data.json
@@ -0,0 +1,129 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    },
+    "device": {
+      "ua": "Mozilla/5.0",
+      "geo": {
+        "country": "USA",
+        "lat": 37.7749,
+        "lon": -122.4194
+      }
+    },
+    "user": {
+      "id": "user-1",
+      "gender": "M",
+      "yob": 1990,
+      "customdata": "secret",
+      "geo": {
+        "lat": 37.7749,
+        "lon": -122.4194
+      }
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "device": {
+            "ua": "Mozilla/5.0",
+            "geo": {
+              "country": "USA"
+            }
+          },
+          "user": {
+            "id": "user-1"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "aps",
+              "bid": [
+                {
+                  "id": "1",
+                  "impid": "test-imp-id",
+                  "price": 1.5,
+                  "adm": "<div>banner ad</div>",
+                  "crid": "creative-1",
+                  "mtype": 1,
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "1",
+            "impid": "test-imp-id",
+            "price": 1.5,
+            "adm": "<div>banner ad</div>",
+            "crid": "creative-1",
+            "mtype": 1,
+            "w": 300,
+            "h": 250
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/aps/apstest/supplemental/test-mode-appends-debug.json b/adapters/aps/apstest/supplemental/test-mode-appends-debug.json
new file mode 100644
index 000000000..7fdf139c1
--- /dev/null
+++ b/adapters/aps/apstest/supplemental/test-mode-appends-debug.json
@@ -0,0 +1,64 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "test": 1,
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": { "accountID": "test-account" }
+        }
+      }
+    ],
+    "site": {
+      "page": "https://example.com"
+    }
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://s2s.prebid.bid-na.ads.aps.amazon-adsystem.com/e/pb/bid?amzn_debug_mode=1",
+        "body": {
+          "id": "test-request-id",
+          "test": 1,
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": { "accountID": "test-account" }
+              }
+            }
+          ],
+          "site": {
+            "page": "https://example.com"
+          },
+          "cur": [
+            "USD"
+          ],
+          "ext": {
+            "account": "test-account",
+            "sdk": {
+              "version": "1.0.0",
+              "source": "prebid-server"
+            }
+          }
+        },
+        "impIDs": [
+          "test-imp-id"
+        ]
+      },
+      "mockResponse": {
+        "status": 204
+      }
+    }
+  ],
+  "expectedBidResponses": []
+}
diff --git a/adapters/aps/params_test.go b/adapters/aps/params_test.go
new file mode 100644
index 000000000..74e035885
--- /dev/null
+++ b/adapters/aps/params_test.go
@@ -0,0 +1,54 @@
+package aps
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/prebid/prebid-server/v4/openrtb_ext"
+)
+
+func TestValidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch json-schemas. %v", err)
+	}
+
+	for _, param := range validParams {
+		if err := validator.Validate(openrtb_ext.BidderAps, json.RawMessage(param)); err != nil {
+			t.Errorf("Schema rejected valid params: %s", param)
+		}
+	}
+}
+
+func TestInvalidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch json-schemas. %v", err)
+	}
+
+	for _, param := range invalidParams {
+		if err := validator.Validate(openrtb_ext.BidderAps, json.RawMessage(param)); err == nil {
+			t.Errorf("Schema allowed invalid params: %s", param)
+		}
+	}
+}
+
+var validParams = []string{
+	`{"accountID":"test-account"}`,
+	`{"accountID":"3703"}`,
+	`{"accountID":"test-account","region":"na"}`,
+	`{"accountID":"test-account","region":"eu"}`,
+	`{"accountID":"test-account","region":"fe"}`,
+}
+
+var invalidParams = []string{
+	`{}`,
+	`{"accountID":123}`,
+	`{"accountID":"test-account","region":"xx"}`,
+	`{"accountID":"test-account","region":""}`,
+	`[]`,
+	`"aps"`,
+	`1`,
+	`true`,
+	`null`,
+}
diff --git a/exchange/adapter_builders.go b/exchange/adapter_builders.go
index fa1ea996f..ff389818b 100755
--- a/exchange/adapter_builders.go
+++ b/exchange/adapter_builders.go
@@ -1,263 +1,281 @@
 package exchange
 
 import (
-	"github.com/prebid/prebid-server/v3/adapters"
-	ttx "github.com/prebid/prebid-server/v3/adapters/33across"
-	"github.com/prebid/prebid-server/v3/adapters/aax"
-	"github.com/prebid/prebid-server/v3/adapters/aceex"
-	"github.com/prebid/prebid-server/v3/adapters/acuityads"
-	"github.com/prebid/prebid-server/v3/adapters/adagio"
-	"github.com/prebid/prebid-server/v3/adapters/adelement"
-	"github.com/prebid/prebid-server/v3/adapters/adf"
-	"github.com/prebid/prebid-server/v3/adapters/adgeneration"
-	"github.com/prebid/prebid-server/v3/adapters/adhese"
-	"github.com/prebid/prebid-server/v3/adapters/adkernel"
-	"github.com/prebid/prebid-server/v3/adapters/adkernelAdn"
-	"github.com/prebid/prebid-server/v3/adapters/adman"
-	"github.com/prebid/prebid-server/v3/adapters/admatic"
-	"github.com/prebid/prebid-server/v3/adapters/admixer"
-	"github.com/prebid/prebid-server/v3/adapters/adnuntius"
-	"github.com/prebid/prebid-server/v3/adapters/adocean"
-	"github.com/prebid/prebid-server/v3/adapters/adoppler"
-	"github.com/prebid/prebid-server/v3/adapters/adot"
-	"github.com/prebid/prebid-server/v3/adapters/adpone"
-	"github.com/prebid/prebid-server/v3/adapters/adprime"
-	"github.com/prebid/prebid-server/v3/adapters/adquery"
-	"github.com/prebid/prebid-server/v3/adapters/adrino"
-	"github.com/prebid/prebid-server/v3/adapters/ads_interactive"
-	"github.com/prebid/prebid-server/v3/adapters/adsinteractive"
-	"github.com/prebid/prebid-server/v3/adapters/adtarget"
-	"github.com/prebid/prebid-server/v3/adapters/adtelligent"
-	"github.com/prebid/prebid-server/v3/adapters/adtonos"
-	"github.com/prebid/prebid-server/v3/adapters/adtrgtme"
-	"github.com/prebid/prebid-server/v3/adapters/aduptech"
-	"github.com/prebid/prebid-server/v3/adapters/advangelists"
-	"github.com/prebid/prebid-server/v3/adapters/adverxo"
-	"github.com/prebid/prebid-server/v3/adapters/adview"
-	"github.com/prebid/prebid-server/v3/adapters/adxcg"
-	"github.com/prebid/prebid-server/v3/adapters/adyoulike"
-	"github.com/prebid/prebid-server/v3/adapters/afront"
-	"github.com/prebid/prebid-server/v3/adapters/aidem"
-	"github.com/prebid/prebid-server/v3/adapters/aja"
-	"github.com/prebid/prebid-server/v3/adapters/akcelo"
-	"github.com/prebid/prebid-server/v3/adapters/algorix"
-	"github.com/prebid/prebid-server/v3/adapters/alkimi"
-	"github.com/prebid/prebid-server/v3/adapters/amx"
-	"github.com/prebid/prebid-server/v3/adapters/apacdex"
-	"github.com/prebid/prebid-server/v3/adapters/appnexus"
-	"github.com/prebid/prebid-server/v3/adapters/appush"
-	"github.com/prebid/prebid-server/v3/adapters/aso"
-	"github.com/prebid/prebid-server/v3/adapters/audienceNetwork"
-	"github.com/prebid/prebid-server/v3/adapters/automatad"
-	"github.com/prebid/prebid-server/v3/adapters/avocet"
-	"github.com/prebid/prebid-server/v3/adapters/axis"
-	"github.com/prebid/prebid-server/v3/adapters/axonix"
-	"github.com/prebid/prebid-server/v3/adapters/beachfront"
-	"github.com/prebid/prebid-server/v3/adapters/beintoo"
-	"github.com/prebid/prebid-server/v3/adapters/bematterfull"
-	"github.com/prebid/prebid-server/v3/adapters/between"
-	"github.com/prebid/prebid-server/v3/adapters/beyondmedia"
-	"github.com/prebid/prebid-server/v3/adapters/bidmachine"
-	"github.com/prebid/prebid-server/v3/adapters/bidmatic"
-	"github.com/prebid/prebid-server/v3/adapters/bidmyadz"
-	"github.com/prebid/prebid-server/v3/adapters/bidscube"
-	"github.com/prebid/prebid-server/v3/adapters/bidstack"
-	"github.com/prebid/prebid-server/v3/adapters/bidtheatre"
-	"github.com/prebid/prebid-server/v3/adapters/bigoad"
-	"github.com/prebid/prebid-server/v3/adapters/blasto"
-	"github.com/prebid/prebid-server/v3/adapters/bliink"
-	"github.com/prebid/prebid-server/v3/adapters/blis"
-	"github.com/prebid/prebid-server/v3/adapters/blue"
-	"github.com/prebid/prebid-server/v3/adapters/bluesea"
-	"github.com/prebid/prebid-server/v3/adapters/bmtm"
-	"github.com/prebid/prebid-server/v3/adapters/boldwin"
-	"github.com/prebid/prebid-server/v3/adapters/brave"
-	"github.com/prebid/prebid-server/v3/adapters/bwx"
-	cadentaperturemx "github.com/prebid/prebid-server/v3/adapters/cadent_aperture_mx"
-	"github.com/prebid/prebid-server/v3/adapters/ccx"
-	"github.com/prebid/prebid-server/v3/adapters/cointraffic"
-	"github.com/prebid/prebid-server/v3/adapters/coinzilla"
-	"github.com/prebid/prebid-server/v3/adapters/colossus"
-	"github.com/prebid/prebid-server/v3/adapters/compass"
-	"github.com/prebid/prebid-server/v3/adapters/concert"
-	"github.com/prebid/prebid-server/v3/adapters/connatix"
-	"github.com/prebid/prebid-server/v3/adapters/connectad"
-	"github.com/prebid/prebid-server/v3/adapters/consumable"
-	"github.com/prebid/prebid-server/v3/adapters/conversant"
-	"github.com/prebid/prebid-server/v3/adapters/copper6ssp"
-	"github.com/prebid/prebid-server/v3/adapters/cpmstar"
-	"github.com/prebid/prebid-server/v3/adapters/criteo"
-	"github.com/prebid/prebid-server/v3/adapters/cwire"
-	"github.com/prebid/prebid-server/v3/adapters/datablocks"
-	"github.com/prebid/prebid-server/v3/adapters/decenterads"
-	"github.com/prebid/prebid-server/v3/adapters/deepintent"
-	"github.com/prebid/prebid-server/v3/adapters/definemedia"
-	"github.com/prebid/prebid-server/v3/adapters/dianomi"
-	"github.com/prebid/prebid-server/v3/adapters/displayio"
-	"github.com/prebid/prebid-server/v3/adapters/dmx"
-	"github.com/prebid/prebid-server/v3/adapters/driftpixel"
-	"github.com/prebid/prebid-server/v3/adapters/dxkulture"
-	evolution "github.com/prebid/prebid-server/v3/adapters/e_volution"
-	"github.com/prebid/prebid-server/v3/adapters/edge226"
-	"github.com/prebid/prebid-server/v3/adapters/emtv"
-	"github.com/prebid/prebid-server/v3/adapters/eplanning"
-	"github.com/prebid/prebid-server/v3/adapters/epom"
-	"github.com/prebid/prebid-server/v3/adapters/escalax"
-	"github.com/prebid/prebid-server/v3/adapters/exco"
-	"github.com/prebid/prebid-server/v3/adapters/feedad"
-	"github.com/prebid/prebid-server/v3/adapters/flatads"
-	"github.com/prebid/prebid-server/v3/adapters/flipp"
-	"github.com/prebid/prebid-server/v3/adapters/freewheelssp"
-	"github.com/prebid/prebid-server/v3/adapters/frvradn"
-	"github.com/prebid/prebid-server/v3/adapters/fwssp"
-	"github.com/prebid/prebid-server/v3/adapters/gamma"
-	"github.com/prebid/prebid-server/v3/adapters/gamoshi"
-	"github.com/prebid/prebid-server/v3/adapters/globalsun"
-	"github.com/prebid/prebid-server/v3/adapters/gothamads"
-	"github.com/prebid/prebid-server/v3/adapters/grid"
-	"github.com/prebid/prebid-server/v3/adapters/gumgum"
-	"github.com/prebid/prebid-server/v3/adapters/huaweiads"
-	"github.com/prebid/prebid-server/v3/adapters/imds"
-	"github.com/prebid/prebid-server/v3/adapters/impactify"
-	"github.com/prebid/prebid-server/v3/adapters/improvedigital"
-	"github.com/prebid/prebid-server/v3/adapters/infytv"
-	"github.com/prebid/prebid-server/v3/adapters/inmobi"
-	"github.com/prebid/prebid-server/v3/adapters/insticator"
-	"github.com/prebid/prebid-server/v3/adapters/interactiveoffers"
-	"github.com/prebid/prebid-server/v3/adapters/intertech"
-	"github.com/prebid/prebid-server/v3/adapters/invibes"
-	"github.com/prebid/prebid-server/v3/adapters/iqx"
-	"github.com/prebid/prebid-server/v3/adapters/iqzone"
-	"github.com/prebid/prebid-server/v3/adapters/ix"
-	"github.com/prebid/prebid-server/v3/adapters/jixie"
-	"github.com/prebid/prebid-server/v3/adapters/kargo"
-	"github.com/prebid/prebid-server/v3/adapters/kayzen"
-	"github.com/prebid/prebid-server/v3/adapters/kidoz"
-	"github.com/prebid/prebid-server/v3/adapters/kiviads"
-	"github.com/prebid/prebid-server/v3/adapters/kobler"
-	"github.com/prebid/prebid-server/v3/adapters/krushmedia"
-	"github.com/prebid/prebid-server/v3/adapters/kueezrtb"
-	"github.com/prebid/prebid-server/v3/adapters/lemmadigital"
-	"github.com/prebid/prebid-server/v3/adapters/limelightDigital"
-	lmkiviads "github.com/prebid/prebid-server/v3/adapters/lm_kiviads"
-	"github.com/prebid/prebid-server/v3/adapters/lockerdome"
-	"github.com/prebid/prebid-server/v3/adapters/logan"
-	"github.com/prebid/prebid-server/v3/adapters/logicad"
-	"github.com/prebid/prebid-server/v3/adapters/loopme"
-	"github.com/prebid/prebid-server/v3/adapters/loyal"
-	"github.com/prebid/prebid-server/v3/adapters/lunamedia"
-	"github.com/prebid/prebid-server/v3/adapters/mabidder"
-	"github.com/prebid/prebid-server/v3/adapters/madsense"
-	"github.com/prebid/prebid-server/v3/adapters/madvertise"
-	"github.com/prebid/prebid-server/v3/adapters/marsmedia"
-	"github.com/prebid/prebid-server/v3/adapters/mediago"
-	"github.com/prebid/prebid-server/v3/adapters/medianet"
-	"github.com/prebid/prebid-server/v3/adapters/mediasquare"
-	"github.com/prebid/prebid-server/v3/adapters/melozen"
-	"github.com/prebid/prebid-server/v3/adapters/metax"
-	"github.com/prebid/prebid-server/v3/adapters/mgid"
-	"github.com/prebid/prebid-server/v3/adapters/mgidX"
-	"github.com/prebid/prebid-server/v3/adapters/minutemedia"
-	"github.com/prebid/prebid-server/v3/adapters/missena"
-	"github.com/prebid/prebid-server/v3/adapters/mobfoxpb"
-	"github.com/prebid/prebid-server/v3/adapters/mobilefuse"
-	"github.com/prebid/prebid-server/v3/adapters/mobkoi"
-	"github.com/prebid/prebid-server/v3/adapters/motorik"
-	"github.com/prebid/prebid-server/v3/adapters/nativo"
-	"github.com/prebid/prebid-server/v3/adapters/nextmillennium"
-	"github.com/prebid/prebid-server/v3/adapters/nexx360"
-	"github.com/prebid/prebid-server/v3/adapters/nobid"
-	"github.com/prebid/prebid-server/v3/adapters/ogury"
-	"github.com/prebid/prebid-server/v3/adapters/oms"
-	"github.com/prebid/prebid-server/v3/adapters/onetag"
-	"github.com/prebid/prebid-server/v3/adapters/openweb"
-	"github.com/prebid/prebid-server/v3/adapters/openx"
-	"github.com/prebid/prebid-server/v3/adapters/operaads"
-	"github.com/prebid/prebid-server/v3/adapters/optidigital"
-	"github.com/prebid/prebid-server/v3/adapters/oraki"
-	"github.com/prebid/prebid-server/v3/adapters/orbidder"
-	"github.com/prebid/prebid-server/v3/adapters/outbrain"
-	"github.com/prebid/prebid-server/v3/adapters/ownadx"
-	"github.com/prebid/prebid-server/v3/adapters/pangle"
-	"github.com/prebid/prebid-server/v3/adapters/pgamssp"
-	"github.com/prebid/prebid-server/v3/adapters/playdigo"
-	"github.com/prebid/prebid-server/v3/adapters/pubmatic"
-	"github.com/prebid/prebid-server/v3/adapters/pubnative"
-	"github.com/prebid/prebid-server/v3/adapters/pubrise"
-	"github.com/prebid/prebid-server/v3/adapters/pulsepoint"
-	"github.com/prebid/prebid-server/v3/adapters/pwbid"
-	"github.com/prebid/prebid-server/v3/adapters/qt"
-	"github.com/prebid/prebid-server/v3/adapters/readpeak"
-	"github.com/prebid/prebid-server/v3/adapters/rediads"
-	"github.com/prebid/prebid-server/v3/adapters/relevantdigital"
-	"github.com/prebid/prebid-server/v3/adapters/resetdigital"
-	"github.com/prebid/prebid-server/v3/adapters/revcontent"
-	"github.com/prebid/prebid-server/v3/adapters/richaudience"
-	"github.com/prebid/prebid-server/v3/adapters/rise"
-	"github.com/prebid/prebid-server/v3/adapters/roulax"
-	"github.com/prebid/prebid-server/v3/adapters/rtbhouse"
-	"github.com/prebid/prebid-server/v3/adapters/rubicon"
-	salunamedia "github.com/prebid/prebid-server/v3/adapters/sa_lunamedia"
-	"github.com/prebid/prebid-server/v3/adapters/screencore"
-	"github.com/prebid/prebid-server/v3/adapters/seedingAlliance"
-	"github.com/prebid/prebid-server/v3/adapters/seedtag"
-	"github.com/prebid/prebid-server/v3/adapters/sharethrough"
-	"github.com/prebid/prebid-server/v3/adapters/silvermob"
-	"github.com/prebid/prebid-server/v3/adapters/silverpush"
-	"github.com/prebid/prebid-server/v3/adapters/smaato"
-	"github.com/prebid/prebid-server/v3/adapters/smartadserver"
-	"github.com/prebid/prebid-server/v3/adapters/smarthub"
-	"github.com/prebid/prebid-server/v3/adapters/smartrtb"
-	"github.com/prebid/prebid-server/v3/adapters/smartx"
-	"github.com/prebid/prebid-server/v3/adapters/smartyads"
-	"github.com/prebid/prebid-server/v3/adapters/smilewanted"
-	"github.com/prebid/prebid-server/v3/adapters/smoot"
-	"github.com/prebid/prebid-server/v3/adapters/smrtconnect"
-	"github.com/prebid/prebid-server/v3/adapters/sonobi"
-	"github.com/prebid/prebid-server/v3/adapters/sovrn"
-	"github.com/prebid/prebid-server/v3/adapters/sovrnXsp"
-	"github.com/prebid/prebid-server/v3/adapters/sparteo"
-	"github.com/prebid/prebid-server/v3/adapters/sspBC"
-	"github.com/prebid/prebid-server/v3/adapters/startio"
-	"github.com/prebid/prebid-server/v3/adapters/stroeerCore"
-	"github.com/prebid/prebid-server/v3/adapters/taboola"
-	"github.com/prebid/prebid-server/v3/adapters/tappx"
-	"github.com/prebid/prebid-server/v3/adapters/teads"
-	"github.com/prebid/prebid-server/v3/adapters/telaria"
-	"github.com/prebid/prebid-server/v3/adapters/teqblaze"
-	"github.com/prebid/prebid-server/v3/adapters/theadx"
-	"github.com/prebid/prebid-server/v3/adapters/thetradedesk"
-	"github.com/prebid/prebid-server/v3/adapters/tpmn"
-	"github.com/prebid/prebid-server/v3/adapters/tradplus"
-	"github.com/prebid/prebid-server/v3/adapters/trafficgate"
-	"github.com/prebid/prebid-server/v3/adapters/triplelift"
-	"github.com/prebid/prebid-server/v3/adapters/triplelift_native"
-	"github.com/prebid/prebid-server/v3/adapters/trustedstack"
-	"github.com/prebid/prebid-server/v3/adapters/ucfunnel"
-	"github.com/prebid/prebid-server/v3/adapters/undertone"
-	"github.com/prebid/prebid-server/v3/adapters/unicorn"
-	"github.com/prebid/prebid-server/v3/adapters/unruly"
-	"github.com/prebid/prebid-server/v3/adapters/vidazoo"
-	"github.com/prebid/prebid-server/v3/adapters/videobyte"
-	"github.com/prebid/prebid-server/v3/adapters/videoheroes"
-	"github.com/prebid/prebid-server/v3/adapters/vidoomy"
-	"github.com/prebid/prebid-server/v3/adapters/visiblemeasures"
-	"github.com/prebid/prebid-server/v3/adapters/visx"
-	"github.com/prebid/prebid-server/v3/adapters/vox"
-	"github.com/prebid/prebid-server/v3/adapters/vrtcal"
-	"github.com/prebid/prebid-server/v3/adapters/vungle"
-	"github.com/prebid/prebid-server/v3/adapters/xeworks"
-	"github.com/prebid/prebid-server/v3/adapters/yahooAds"
-	"github.com/prebid/prebid-server/v3/adapters/yandex"
-	"github.com/prebid/prebid-server/v3/adapters/yeahmobi"
-	"github.com/prebid/prebid-server/v3/adapters/yieldlab"
-	"github.com/prebid/prebid-server/v3/adapters/yieldmo"
-	"github.com/prebid/prebid-server/v3/adapters/yieldone"
-	"github.com/prebid/prebid-server/v3/adapters/zentotem"
-	"github.com/prebid/prebid-server/v3/adapters/zeroclickfraud"
-	"github.com/prebid/prebid-server/v3/adapters/zeta_global_ssp"
-	"github.com/prebid/prebid-server/v3/adapters/zmaticoo"
-	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v4/adapters"
+	ttx "github.com/prebid/prebid-server/v4/adapters/33across"
+	"github.com/prebid/prebid-server/v4/adapters/aax"
+	"github.com/prebid/prebid-server/v4/adapters/aceex"
+	"github.com/prebid/prebid-server/v4/adapters/acuityads"
+	"github.com/prebid/prebid-server/v4/adapters/adagio"
+	"github.com/prebid/prebid-server/v4/adapters/adelement"
+	"github.com/prebid/prebid-server/v4/adapters/adf"
+	"github.com/prebid/prebid-server/v4/adapters/adgeneration"
+	"github.com/prebid/prebid-server/v4/adapters/adhese"
+	"github.com/prebid/prebid-server/v4/adapters/adkernel"
+	"github.com/prebid/prebid-server/v4/adapters/adkernelAdn"
+	"github.com/prebid/prebid-server/v4/adapters/adman"
+	"github.com/prebid/prebid-server/v4/adapters/admatic"
+	"github.com/prebid/prebid-server/v4/adapters/admixer"
+	"github.com/prebid/prebid-server/v4/adapters/adnuntius"
+	"github.com/prebid/prebid-server/v4/adapters/adot"
+	"github.com/prebid/prebid-server/v4/adapters/adpone"
+	"github.com/prebid/prebid-server/v4/adapters/adprime"
+	"github.com/prebid/prebid-server/v4/adapters/adquery"
+	"github.com/prebid/prebid-server/v4/adapters/adrino"
+	"github.com/prebid/prebid-server/v4/adapters/adtarget"
+	"github.com/prebid/prebid-server/v4/adapters/adtelligent"
+	"github.com/prebid/prebid-server/v4/adapters/adtonos"
+	"github.com/prebid/prebid-server/v4/adapters/adtrgtme"
+	"github.com/prebid/prebid-server/v4/adapters/aduptech"
+	"github.com/prebid/prebid-server/v4/adapters/advangelists"
+	"github.com/prebid/prebid-server/v4/adapters/adverxo"
+	"github.com/prebid/prebid-server/v4/adapters/adview"
+	"github.com/prebid/prebid-server/v4/adapters/adxcg"
+	"github.com/prebid/prebid-server/v4/adapters/adyoulike"
+	"github.com/prebid/prebid-server/v4/adapters/afront"
+	"github.com/prebid/prebid-server/v4/adapters/aidem"
+	"github.com/prebid/prebid-server/v4/adapters/aja"
+	"github.com/prebid/prebid-server/v4/adapters/akcelo"
+	"github.com/prebid/prebid-server/v4/adapters/algorix"
+	"github.com/prebid/prebid-server/v4/adapters/alkimi"
+	alliance_gravity "github.com/prebid/prebid-server/v4/adapters/alliance_gravity"
+	"github.com/prebid/prebid-server/v4/adapters/amx"
+	"github.com/prebid/prebid-server/v4/adapters/apacdex"
+	"github.com/prebid/prebid-server/v4/adapters/appnexus"
+	"github.com/prebid/prebid-server/v4/adapters/appush"
+	"github.com/prebid/prebid-server/v4/adapters/aps"
+	"github.com/prebid/prebid-server/v4/adapters/aso"
+	"github.com/prebid/prebid-server/v4/adapters/audienceNetwork"
+	"github.com/prebid/prebid-server/v4/adapters/automatad"
+	"github.com/prebid/prebid-server/v4/adapters/avocet"
+	"github.com/prebid/prebid-server/v4/adapters/axis"
+	"github.com/prebid/prebid-server/v4/adapters/axonix"
+	"github.com/prebid/prebid-server/v4/adapters/beachfront"
+	"github.com/prebid/prebid-server/v4/adapters/beintoo"
+	"github.com/prebid/prebid-server/v4/adapters/bematterfull"
+	"github.com/prebid/prebid-server/v4/adapters/beop"
+	"github.com/prebid/prebid-server/v4/adapters/between"
+	"github.com/prebid/prebid-server/v4/adapters/beyondmedia"
+	"github.com/prebid/prebid-server/v4/adapters/bidmachine"
+	"github.com/prebid/prebid-server/v4/adapters/bidmatic"
+	"github.com/prebid/prebid-server/v4/adapters/bidmyadz"
+	"github.com/prebid/prebid-server/v4/adapters/bidscube"
+	"github.com/prebid/prebid-server/v4/adapters/bidstack"
+	"github.com/prebid/prebid-server/v4/adapters/bidtheatre"
+	"github.com/prebid/prebid-server/v4/adapters/bigoad"
+	"github.com/prebid/prebid-server/v4/adapters/blasto"
+	"github.com/prebid/prebid-server/v4/adapters/bliink"
+	"github.com/prebid/prebid-server/v4/adapters/blis"
+	"github.com/prebid/prebid-server/v4/adapters/blue"
+	"github.com/prebid/prebid-server/v4/adapters/bluesea"
+	"github.com/prebid/prebid-server/v4/adapters/bmtm"
+	"github.com/prebid/prebid-server/v4/adapters/boldwin"
+	"github.com/prebid/prebid-server/v4/adapters/boldwin_rapid"
+	"github.com/prebid/prebid-server/v4/adapters/brave"
+	"github.com/prebid/prebid-server/v4/adapters/bwx"
+	cadentaperturemx "github.com/prebid/prebid-server/v4/adapters/cadent_aperture_mx"
+	"github.com/prebid/prebid-server/v4/adapters/ccx"
+	"github.com/prebid/prebid-server/v4/adapters/clydo"
+	"github.com/prebid/prebid-server/v4/adapters/cointraffic"
+	"github.com/prebid/prebid-server/v4/adapters/coinzilla"
+	"github.com/prebid/prebid-server/v4/adapters/colossus"
+	"github.com/prebid/prebid-server/v4/adapters/compass"
+	"github.com/prebid/prebid-server/v4/adapters/concert"
+	"github.com/prebid/prebid-server/v4/adapters/connatix"
+	"github.com/prebid/prebid-server/v4/adapters/connectad"
+	"github.com/prebid/prebid-server/v4/adapters/consumable"
+	"github.com/prebid/prebid-server/v4/adapters/contxtful"
+	"github.com/prebid/prebid-server/v4/adapters/conversant"
+	"github.com/prebid/prebid-server/v4/adapters/copper6ssp"
+	"github.com/prebid/prebid-server/v4/adapters/cpmstar"
+	"github.com/prebid/prebid-server/v4/adapters/criteo"
+	"github.com/prebid/prebid-server/v4/adapters/cwire"
+	"github.com/prebid/prebid-server/v4/adapters/datablocks"
+	"github.com/prebid/prebid-server/v4/adapters/decenterads"
+	"github.com/prebid/prebid-server/v4/adapters/deepintent"
+	"github.com/prebid/prebid-server/v4/adapters/definemedia"
+	"github.com/prebid/prebid-server/v4/adapters/dianomi"
+	"github.com/prebid/prebid-server/v4/adapters/displayio"
+	"github.com/prebid/prebid-server/v4/adapters/dmx"
+	"github.com/prebid/prebid-server/v4/adapters/driftpixel"
+	evolution "github.com/prebid/prebid-server/v4/adapters/e_volution"
+	"github.com/prebid/prebid-server/v4/adapters/edge226"
+	"github.com/prebid/prebid-server/v4/adapters/elementaltv"
+	"github.com/prebid/prebid-server/v4/adapters/emtv"
+	"github.com/prebid/prebid-server/v4/adapters/eplanning"
+	"github.com/prebid/prebid-server/v4/adapters/epom"
+	"github.com/prebid/prebid-server/v4/adapters/escalax"
+	"github.com/prebid/prebid-server/v4/adapters/eskimi"
+	"github.com/prebid/prebid-server/v4/adapters/exco"
+	"github.com/prebid/prebid-server/v4/adapters/ezoic"
+	"github.com/prebid/prebid-server/v4/adapters/feedad"
+	"github.com/prebid/prebid-server/v4/adapters/ferio"
+	"github.com/prebid/prebid-server/v4/adapters/flatads"
+	"github.com/prebid/prebid-server/v4/adapters/flipp"
+	"github.com/prebid/prebid-server/v4/adapters/freewheelssp"
+	"github.com/prebid/prebid-server/v4/adapters/frvradn"
+	"github.com/prebid/prebid-server/v4/adapters/fwssp"
+	"github.com/prebid/prebid-server/v4/adapters/gamma"
+	"github.com/prebid/prebid-server/v4/adapters/gamoshi"
+	"github.com/prebid/prebid-server/v4/adapters/globalsun"
+	"github.com/prebid/prebid-server/v4/adapters/goldbach"
+	"github.com/prebid/prebid-server/v4/adapters/grid"
+	"github.com/prebid/prebid-server/v4/adapters/gumgum"
+	"github.com/prebid/prebid-server/v4/adapters/huaweiads"
+	"github.com/prebid/prebid-server/v4/adapters/imds"
+	"github.com/prebid/prebid-server/v4/adapters/impactify"
+	"github.com/prebid/prebid-server/v4/adapters/improvedigital"
+	"github.com/prebid/prebid-server/v4/adapters/infytv"
+	"github.com/prebid/prebid-server/v4/adapters/inmobi"
+	"github.com/prebid/prebid-server/v4/adapters/insticator"
+	"github.com/prebid/prebid-server/v4/adapters/intenze"
+	"github.com/prebid/prebid-server/v4/adapters/interactiveoffers"
+	"github.com/prebid/prebid-server/v4/adapters/invibes"
+	"github.com/prebid/prebid-server/v4/adapters/iqx"
+	"github.com/prebid/prebid-server/v4/adapters/iqzone"
+	"github.com/prebid/prebid-server/v4/adapters/ix"
+	"github.com/prebid/prebid-server/v4/adapters/jixie"
+	"github.com/prebid/prebid-server/v4/adapters/kargo"
+	"github.com/prebid/prebid-server/v4/adapters/kayzen"
+	"github.com/prebid/prebid-server/v4/adapters/kidoz"
+	"github.com/prebid/prebid-server/v4/adapters/kiviads"
+	"github.com/prebid/prebid-server/v4/adapters/kobler"
+	"github.com/prebid/prebid-server/v4/adapters/krushmedia"
+	"github.com/prebid/prebid-server/v4/adapters/kueezrtb"
+	"github.com/prebid/prebid-server/v4/adapters/lemmadigital"
+	"github.com/prebid/prebid-server/v4/adapters/limelightDigital"
+	lmkiviads "github.com/prebid/prebid-server/v4/adapters/lm_kiviads"
+	"github.com/prebid/prebid-server/v4/adapters/lockerdome"
+	"github.com/prebid/prebid-server/v4/adapters/logan"
+	"github.com/prebid/prebid-server/v4/adapters/logicad"
+	"github.com/prebid/prebid-server/v4/adapters/loopme"
+	"github.com/prebid/prebid-server/v4/adapters/loyal"
+	"github.com/prebid/prebid-server/v4/adapters/lunamedia"
+	"github.com/prebid/prebid-server/v4/adapters/mabidder"
+	"github.com/prebid/prebid-server/v4/adapters/madsense"
+	"github.com/prebid/prebid-server/v4/adapters/madvertise"
+	"github.com/prebid/prebid-server/v4/adapters/marsmedia"
+	"github.com/prebid/prebid-server/v4/adapters/matterfullrtb"
+	"github.com/prebid/prebid-server/v4/adapters/mediago"
+	"github.com/prebid/prebid-server/v4/adapters/medianet"
+	"github.com/prebid/prebid-server/v4/adapters/mediasquare"
+	"github.com/prebid/prebid-server/v4/adapters/melozen"
+	"github.com/prebid/prebid-server/v4/adapters/metax"
+	"github.com/prebid/prebid-server/v4/adapters/mgid"
+	"github.com/prebid/prebid-server/v4/adapters/mgidX"
+	"github.com/prebid/prebid-server/v4/adapters/minutemedia"
+	"github.com/prebid/prebid-server/v4/adapters/missena"
+	"github.com/prebid/prebid-server/v4/adapters/mobfoxpb"
+	"github.com/prebid/prebid-server/v4/adapters/mobilefuse"
+	"github.com/prebid/prebid-server/v4/adapters/mobkoi"
+	"github.com/prebid/prebid-server/v4/adapters/motorik"
+	"github.com/prebid/prebid-server/v4/adapters/msft"
+	"github.com/prebid/prebid-server/v4/adapters/nativery"
+	"github.com/prebid/prebid-server/v4/adapters/nativo"
+	"github.com/prebid/prebid-server/v4/adapters/nextmillennium"
+	"github.com/prebid/prebid-server/v4/adapters/nexx360"
+	"github.com/prebid/prebid-server/v4/adapters/nobid"
+	"github.com/prebid/prebid-server/v4/adapters/ogury"
+	"github.com/prebid/prebid-server/v4/adapters/oms"
+	"github.com/prebid/prebid-server/v4/adapters/onetag"
+	"github.com/prebid/prebid-server/v4/adapters/openweb"
+	"github.com/prebid/prebid-server/v4/adapters/openx"
+	"github.com/prebid/prebid-server/v4/adapters/operaads"
+	"github.com/prebid/prebid-server/v4/adapters/optidigital"
+	"github.com/prebid/prebid-server/v4/adapters/oraki"
+	"github.com/prebid/prebid-server/v4/adapters/orbidder"
+	"github.com/prebid/prebid-server/v4/adapters/outbrain"
+	"github.com/prebid/prebid-server/v4/adapters/ownadx"
+	"github.com/prebid/prebid-server/v4/adapters/pangle"
+	"github.com/prebid/prebid-server/v4/adapters/pgamssp"
+	"github.com/prebid/prebid-server/v4/adapters/pixfuture"
+	"github.com/prebid/prebid-server/v4/adapters/playdigo"
+	"github.com/prebid/prebid-server/v4/adapters/proxistore"
+	"github.com/prebid/prebid-server/v4/adapters/pubmatic"
+	"github.com/prebid/prebid-server/v4/adapters/pubnative"
+	"github.com/prebid/prebid-server/v4/adapters/pubrise"
+	"github.com/prebid/prebid-server/v4/adapters/pulsepoint"
+	"github.com/prebid/prebid-server/v4/adapters/pwbid"
+	"github.com/prebid/prebid-server/v4/adapters/qt"
+	"github.com/prebid/prebid-server/v4/adapters/readpeak"
+	"github.com/prebid/prebid-server/v4/adapters/rediads"
+	"github.com/prebid/prebid-server/v4/adapters/relevantdigital"
+	"github.com/prebid/prebid-server/v4/adapters/resetdigital"
+	"github.com/prebid/prebid-server/v4/adapters/revcontent"
+	"github.com/prebid/prebid-server/v4/adapters/richaudience"
+	"github.com/prebid/prebid-server/v4/adapters/rise"
+	"github.com/prebid/prebid-server/v4/adapters/roulax"
+	"github.com/prebid/prebid-server/v4/adapters/rtbhouse"
+	"github.com/prebid/prebid-server/v4/adapters/rtbstack"
+	"github.com/prebid/prebid-server/v4/adapters/rubicon"
+	salunamedia "github.com/prebid/prebid-server/v4/adapters/sa_lunamedia"
+	"github.com/prebid/prebid-server/v4/adapters/scalibur"
+	"github.com/prebid/prebid-server/v4/adapters/seedingAlliance"
+	"github.com/prebid/prebid-server/v4/adapters/seedtag"
+	"github.com/prebid/prebid-server/v4/adapters/sharethrough"
+	"github.com/prebid/prebid-server/v4/adapters/showheroes"
+	"github.com/prebid/prebid-server/v4/adapters/silvermob"
+	"github.com/prebid/prebid-server/v4/adapters/silverpush"
+	"github.com/prebid/prebid-server/v4/adapters/smaato"
+	"github.com/prebid/prebid-server/v4/adapters/smartadserver"
+	"github.com/prebid/prebid-server/v4/adapters/smarthub"
+	"github.com/prebid/prebid-server/v4/adapters/smartrtb"
+	"github.com/prebid/prebid-server/v4/adapters/smartx"
+	"github.com/prebid/prebid-server/v4/adapters/smartyads"
+	"github.com/prebid/prebid-server/v4/adapters/smilewanted"
+	"github.com/prebid/prebid-server/v4/adapters/smoot"
+	"github.com/prebid/prebid-server/v4/adapters/smrtconnect"
+	"github.com/prebid/prebid-server/v4/adapters/sonobi"
+	"github.com/prebid/prebid-server/v4/adapters/sovrn"
+	"github.com/prebid/prebid-server/v4/adapters/sovrnXsp"
+	"github.com/prebid/prebid-server/v4/adapters/sparteo"
+	"github.com/prebid/prebid-server/v4/adapters/sspBC"
+	"github.com/prebid/prebid-server/v4/adapters/stackadapt"
+	"github.com/prebid/prebid-server/v4/adapters/startio"
+	"github.com/prebid/prebid-server/v4/adapters/stroeerCore"
+	"github.com/prebid/prebid-server/v4/adapters/synapseHX"
+	"github.com/prebid/prebid-server/v4/adapters/taboola"
+	"github.com/prebid/prebid-server/v4/adapters/tadvertising_blis"
+	"github.com/prebid/prebid-server/v4/adapters/tappx"
+	"github.com/prebid/prebid-server/v4/adapters/targetVideo"
+	"github.com/prebid/prebid-server/v4/adapters/teads"
+	"github.com/prebid/prebid-server/v4/adapters/teal"
+	"github.com/prebid/prebid-server/v4/adapters/telaria"
+	"github.com/prebid/prebid-server/v4/adapters/teqblaze"
+	"github.com/prebid/prebid-server/v4/adapters/theadx"
+	"github.com/prebid/prebid-server/v4/adapters/thetradedesk"
+	"github.com/prebid/prebid-server/v4/adapters/tpmn"
+	"github.com/prebid/prebid-server/v4/adapters/tradplus"
+	"github.com/prebid/prebid-server/v4/adapters/trafficgate"
+	"github.com/prebid/prebid-server/v4/adapters/triplelift"
+	"github.com/prebid/prebid-server/v4/adapters/triplelift_native"
+	"github.com/prebid/prebid-server/v4/adapters/trustedstack"
+	"github.com/prebid/prebid-server/v4/adapters/trustx"
+	"github.com/prebid/prebid-server/v4/adapters/ucfunnel"
+	"github.com/prebid/prebid-server/v4/adapters/undertone"
+	"github.com/prebid/prebid-server/v4/adapters/unicorn"
+	"github.com/prebid/prebid-server/v4/adapters/unruly"
+	"github.com/prebid/prebid-server/v4/adapters/vidazoo"
+	"github.com/prebid/prebid-server/v4/adapters/videobyte"
+	"github.com/prebid/prebid-server/v4/adapters/videoheroes"
+	"github.com/prebid/prebid-server/v4/adapters/vidoomy"
+	"github.com/prebid/prebid-server/v4/adapters/visiblemeasures"
+	"github.com/prebid/prebid-server/v4/adapters/visx"
+	"github.com/prebid/prebid-server/v4/adapters/vox"
+	"github.com/prebid/prebid-server/v4/adapters/vrtcal"
+	"github.com/prebid/prebid-server/v4/adapters/vungle"
+	"github.com/prebid/prebid-server/v4/adapters/xeworks"
+	"github.com/prebid/prebid-server/v4/adapters/yahooAds"
+	"github.com/prebid/prebid-server/v4/adapters/yandex"
+	"github.com/prebid/prebid-server/v4/adapters/yeahmobi"
+	"github.com/prebid/prebid-server/v4/adapters/yieldlab"
+	"github.com/prebid/prebid-server/v4/adapters/yieldmo"
+	"github.com/prebid/prebid-server/v4/adapters/yieldone"
+	"github.com/prebid/prebid-server/v4/adapters/zentotem"
+	"github.com/prebid/prebid-server/v4/adapters/zeroclickfraud"
+	"github.com/prebid/prebid-server/v4/adapters/zeta_global_ssp"
+	"github.com/prebid/prebid-server/v4/adapters/zmaticoo"
+	"github.com/prebid/prebid-server/v4/openrtb_ext"
 )
 
 // Adapter registration is kept in this separate file for ease of use and to aid
@@ -309,6 +327,7 @@ func newAdapterBuilders() map[openrtb_ext.BidderName]adapters.Builder {
 		openrtb_ext.BidderApacdex:           apacdex.Builder,
 		openrtb_ext.BidderAppnexus:          appnexus.Builder,
 		openrtb_ext.BidderAppush:            appush.Builder,
+		openrtb_ext.BidderAps:               aps.Builder,
 		openrtb_ext.BidderAso:               aso.Builder,
 		openrtb_ext.BidderAudienceNetwork:   audienceNetwork.Builder,
 		openrtb_ext.BidderAutomatad:         automatad.Builder,
diff --git a/openrtb_ext/bidders.go b/openrtb_ext/bidders.go
index c9f3fa601..93c6bc93f 100644
--- a/openrtb_ext/bidders.go
+++ b/openrtb_ext/bidders.go
@@ -62,6 +62,7 @@ var coreBidderNames []BidderName = []BidderName{
 	BidderApacdex,
 	BidderAppnexus,
 	BidderAppush,
+	BidderAps,
 	BidderAso,
 	BidderAudienceNetwork,
 	BidderAutomatad,
@@ -432,6 +433,7 @@ const (
 	BidderApacdex           BidderName = "apacdex"
 	BidderAppnexus          BidderName = "appnexus"
 	BidderAppush            BidderName = "appush"
+	BidderAps               BidderName = "aps"
 	BidderAso               BidderName = "aso"
 	BidderAudienceNetwork   BidderName = "audienceNetwork"
 	BidderAutomatad         BidderName = "automatad"
diff --git a/openrtb_ext/imp_aps.go b/openrtb_ext/imp_aps.go
new file mode 100644
index 000000000..f84a3e9a8
--- /dev/null
+++ b/openrtb_ext/imp_aps.go
@@ -0,0 +1,7 @@
+package openrtb_ext
+
+// ExtImpAps defines bidrequest.imp[i].ext.prebid.bidder.aps.
+type ExtImpAps struct {
+	AccountID string `json:"accountID"`
+	Region    string `json:"region,omitempty"`
+}
diff --git a/static/bidder-info/aps.yaml b/static/bidder-info/aps.yaml
new file mode 100644
index 000000000..dded94f05
--- /dev/null
+++ b/static/bidder-info/aps.yaml
@@ -0,0 +1,13 @@
+# {{.Region}} comes from the aps.region imp param (default na).
+endpoint: "https://s2s.prebid.bid-{{.Region}}.ads.aps.amazon-adsystem.com/e/pb/bid"
+endpointCompression: gzip
+geoscope:
+  - USA
+maintainer:
+  email: "aps-prebid@amazon.com"
+gvlVendorID: 793
+capabilities:
+  site:
+    mediaTypes:
+      - banner
+      - video
diff --git a/static/bidder-params/aps.json b/static/bidder-params/aps.json
new file mode 100644
index 000000000..48f5de753
--- /dev/null
+++ b/static/bidder-params/aps.json
@@ -0,0 +1,18 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "APS Adapter Params",
+  "description": "A schema which validates params accepted by the APS adapter",
+  "type": "object",
+  "properties": {
+    "accountID": {
+      "type": "string",
+      "description": "The APS publisher account id."
+    },
+    "region": {
+      "type": "string",
+      "enum": ["na", "eu", "fe"],
+      "description": "APS regional S2S origin to route to. Optional; defaults to na."
+    }
+  },
+  "required": ["accountID"]
+}