diff --git a/app/desktop/scripts/fetchMediaLibraryAssets.js b/app/desktop/scripts/fetchMediaLibraryAssets.js
index d6cfe4887..b26b32910 100644
--- a/app/desktop/scripts/fetchMediaLibraryAssets.js
+++ b/app/desktop/scripts/fetchMediaLibraryAssets.js
@@ -8,7 +8,7 @@ const async = require('async');
 const libraries = require('./lib/libraries');
 
 const NO_CACHE = process.argv.includes('--no-cache');
-const ASSET_HOST = 'cdn.assets.scratch.mit.edu';
+const ASSET_HOST = 'static.codingclip.com';
 const NUM_SIMULTANEOUS_DOWNLOADS = 5;
 const OUT_PATH = path.resolve('static', 'assets');
 
@@ -66,10 +66,17 @@ const fetchAsset = function (md5, callback) {
         return;
     }
 
+    // The codingclip CDN serves assets by md5ext; skip values without an extension.
+    if (!md5.includes('.')) {
+        console.warn(`Skipped (no file extension): ${md5}`);
+        callback();
+        return;
+    }
+
     const myAgent = connectionPool.pop() || new https.Agent({keepAlive: true});
     const getOptions = {
         host: ASSET_HOST,
-        path: `/internalapi/asset/${md5}/get/`,
+        path: `/v1/project/asset/${md5}`,
         agent: myAgent
     };
     const urlHuman = `//${getOptions.host}${getOptions.path}`;
diff --git a/packages/gui/src/containers/gui.tsx b/packages/gui/src/containers/gui.tsx
index 782685e93..b20fb3256 100644
--- a/packages/gui/src/containers/gui.tsx
+++ b/packages/gui/src/containers/gui.tsx
@@ -49,6 +49,7 @@ interface StorageWithOfficialStores {
 
 interface OwnProps extends ComponentProps {
     assetHost?: string;
+    cdnHost?: string;
     cloudHost?: string;
     fetchingProject?: boolean;
     isLoading?: boolean;
@@ -137,6 +138,7 @@ class GUI extends React.Component<GUIProps> {
         const {
             /* eslint-disable @typescript-eslint/no-unused-vars */
             assetHost,
+            cdnHost,
             cloudHost,
             error,
             isError,
diff --git a/packages/gui/src/containers/library-item.jsx b/packages/gui/src/containers/library-item.jsx
index 51e105053..55e62e4a3 100644
--- a/packages/gui/src/containers/library-item.jsx
+++ b/packages/gui/src/containers/library-item.jsx
@@ -4,6 +4,7 @@ import React from 'react';
 import {injectIntl} from 'react-intl';
 
 import LibraryItemComponent from '../components/library-item/library-item.jsx';
+import storage from '../lib/storage';
 
 class LibraryItem extends React.PureComponent {
     constructor (props) {
@@ -106,7 +107,7 @@ class LibraryItem extends React.PureComponent {
     render () {
         const iconMd5 = this.curIconMd5();
         const iconURL = iconMd5 ?
-            `https://cdn.assets.scratch.mit.edu/internalapi/asset/${iconMd5}/get/` :
+            `${storage.cdnHost}project/asset/${iconMd5}` :
             this.props.iconRawURL;
         return (
             <LibraryItemComponent
diff --git a/packages/gui/src/lib/project-fetcher-hoc.jsx b/packages/gui/src/lib/project-fetcher-hoc.jsx
index 6748d0231..8e7f7a740 100644
--- a/packages/gui/src/lib/project-fetcher-hoc.jsx
+++ b/packages/gui/src/lib/project-fetcher-hoc.jsx
@@ -39,6 +39,7 @@ const ProjectFetcherHOC = function (WrappedComponent) {
             storage.setProjectHost(props.projectHost);
             storage.setProjectToken(props.projectToken);
             storage.setAssetHost(props.assetHost);
+            storage.setCdnHost(props.cdnHost);
             storage.setTranslatorFunction(props.intl.formatMessage);
             // props.projectId might be unset, in which case we use our default;
             // or it may be set by an even higher HOC, and passed to us.
@@ -62,6 +63,9 @@ const ProjectFetcherHOC = function (WrappedComponent) {
             if (prevProps.assetHost !== this.props.assetHost) {
                 storage.setAssetHost(this.props.assetHost);
             }
+            if (prevProps.cdnHost !== this.props.cdnHost) {
+                storage.setCdnHost(this.props.cdnHost);
+            }
             if (this.props.isFetchingWithId && !prevProps.isFetchingWithId) {
                 this.fetchProject(this.props.reduxProjectId, this.props.loadingState);
             }
@@ -93,6 +97,7 @@ const ProjectFetcherHOC = function (WrappedComponent) {
             const {
                 /* eslint-disable no-unused-vars */
                 assetHost,
+                cdnHost,
                 intl,
                 isLoadingProject: isLoadingProjectProp,
                 loadingState,
@@ -119,6 +124,7 @@ const ProjectFetcherHOC = function (WrappedComponent) {
     ProjectFetcherComponent.propTypes = {
         assetHost: PropTypes.string,
         canSave: PropTypes.bool,
+        cdnHost: PropTypes.string,
         intl: intlShape.isRequired,
         isCreatingNew: PropTypes.bool,
         isFetchingWithId: PropTypes.bool,
@@ -136,8 +142,9 @@ const ProjectFetcherHOC = function (WrappedComponent) {
         setProjectId: PropTypes.func
     };
     ProjectFetcherComponent.defaultProps = {
-        assetHost: 'https://assets.scratch.mit.edu',
-        projectHost: 'https://projects.scratch.mit.edu'
+        assetHost: 'https://api.codingclip.com/v1/',
+        cdnHost: 'https://static.codingclip.com/v1/',
+        projectHost: 'https://api.codingclip.com/v1'
     };
 
     const mapStateToProps = state => ({
diff --git a/packages/gui/src/lib/storage.ts b/packages/gui/src/lib/storage.ts
index 31b236449..21402ba2e 100644
--- a/packages/gui/src/lib/storage.ts
+++ b/packages/gui/src/lib/storage.ts
@@ -11,7 +11,8 @@ type Translator = ((messageId: string, defaultMessage?: string, description?: st
 
 type ConfigResponse = string | {
     url: string;
-    withCredentials: boolean;
+    withCredentials?: boolean;
+    headers?: Record<string, string>;
     method?: 'post';
 };
 
@@ -41,6 +42,8 @@ class Storage extends ScratchStorage {
     private projectHost = '';
     private projectToken = '';
     private assetHost = '';
+    private cdnHost = '';
+    private authorizationToken = '';
     private translator: Translator;
 
     constructor () {
@@ -79,7 +82,7 @@ class Storage extends ScratchStorage {
     }
 
     getProjectGetConfig (projectAsset: Asset): ConfigResponse {
-        const path = `${this.projectHost}/${projectAsset.assetId}`;
+        const path = `${this.projectHost}project/json/${projectAsset.assetId}`;
         const qs = this.projectToken ? `?token=${this.projectToken}` : '';
         return path + qs;
     }
@@ -102,19 +105,32 @@ class Storage extends ScratchStorage {
         this.assetHost = assetHost;
     }
 
+    setCdnHost (cdnHost: string): void {
+        this.cdnHost = cdnHost;
+    }
+
+    setAuthorizationToken (token: string): void {
+        this.authorizationToken = `Bearer ${token}`;
+    }
+
     getAssetGetConfig (asset: Asset): ConfigResponse {
-        return `${this.assetHost}/internalapi/asset/${asset.assetId}.${asset.dataFormat}/get/`;
+        return {
+            url: `${this.cdnHost}project/asset/${asset.assetId}.${asset.dataFormat}`,
+            headers: {referer: location.host}
+        };
     }
 
     getAssetCreateConfig (asset: Asset): ConfigResponse {
+        const headers = this.authorizationToken ? {authorization: this.authorizationToken} : undefined;
         return {
             // There is no such thing as updating assets, but storage assumes it
             // should update if there is an assetId, and the asset store uses the
             // assetId as part of the create URI. So, force the method to POST.
             // Then when storage finds this config to use for the "update", still POSTs
             method: 'post',
-            url: `${this.assetHost}/${asset.assetId}.${asset.dataFormat}`,
-            withCredentials: true
+            url: `${this.assetHost}project/uploadAsset/${asset.assetId}.${asset.dataFormat}`,
+            withCredentials: true,
+            headers
         };
     }
 
diff --git a/packages/gui/test/integration/costumes.test.js b/packages/gui/test/integration/costumes.test.js
index f711987e7..5c81e0250 100644
--- a/packages/gui/test/integration/costumes.test.js
+++ b/packages/gui/test/integration/costumes.test.js
@@ -16,6 +16,8 @@ const {
 // The costumes library is slow to load. Increase the timeout for these tests.
 jest.setTimeout(60_000);
 
+const abbyCostumeURL = 'https://static.codingclip.com/v1/project/asset/45de34b47a2ce22f6f5d28bb35a44ff5.svg';
+
 const uri = path.resolve(__dirname, '../../build/index.html');
 
 let driver;
@@ -211,7 +213,7 @@ describe('Working with costumes', () => {
             .mouseMove(abbyElement)
             .perform();
         // wait for one of Abby's alternate costumes to appear
-        await findByXpath('//img[@src="https://cdn.assets.scratch.mit.edu/internalapi/asset/45de34b47a2ce22f6f5d28bb35a44ff5.svg/get/"]');
+        await findByXpath(`//img[@src="${abbyCostumeURL}"]`);
         const logs = await getLogs();
         await expect(logs).toEqual([]);
     });
diff --git a/packages/storage/test/integration/download-known-assets.js b/packages/storage/test/integration/download-known-assets.js
index d99275a26..634084cc1 100644
--- a/packages/storage/test/integration/download-known-assets.js
+++ b/packages/storage/test/integration/download-known-assets.js
@@ -3,6 +3,8 @@ const test = require('tap').test;
 
 const ScratchStorage = require('../../dist/node/scratch-storage');
 
+const ASSET_SERVER = 'https://static.codingclip.com/v1/';
+
 let storage;
 test('constructor', t => {
     storage = new ScratchStorage();
@@ -79,7 +81,7 @@ test('addWebSource', t => {
     t.doesNotThrow(() => {
         storage.addWebSource(
             [storage.AssetType.ImageVector, storage.AssetType.ImageBitmap, storage.AssetType.Sound],
-            asset => `https://cdn.assets.scratch.mit.edu/internalapi/asset/${asset.assetId}.${asset.dataFormat}/get/`
+            asset => `${ASSET_SERVER}project/asset/${asset.assetId}.${asset.dataFormat}`
         );
     });
     t.end();
diff --git a/packages/vm/test/fixtures/make-test-storage.js b/packages/vm/test/fixtures/make-test-storage.js
index ecc099a99..053bd93c5 100644
--- a/packages/vm/test/fixtures/make-test-storage.js
+++ b/packages/vm/test/fixtures/make-test-storage.js
@@ -1,6 +1,6 @@
 import {ScratchStorage} from 'clipcc-storage';
 
-const ASSET_SERVER = 'https://cdn.assets.scratch.mit.edu/';
+const ASSET_SERVER = 'https://static.codingclip.com/v1/';
 const PROJECT_SERVER = 'https://cdn.projects.scratch.mit.edu/';
 
 /**
@@ -21,15 +21,7 @@ const getProjectUrl = function (asset) {
  * @returns {string} a URL to download a project asset (PNG, WAV, etc.)
  */
 const getAssetUrl = function (asset) {
-    const assetUrlParts = [
-        ASSET_SERVER,
-        'internalapi/asset/',
-        asset.assetId,
-        '.',
-        asset.dataFormat,
-        '/get/'
-    ];
-    return assetUrlParts.join('');
+    return `${ASSET_SERVER}project/asset/${asset.assetId}.${asset.dataFormat}`;
 };
 
 /**