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Full detail: Where this data comes from
Access model: enterprise / contract-gated. Sirion (SirionLabs) is an AI-native enterprise Contract Lifecycle Management (CLM) platform. There is no public self-service developer signup and no public pricing. API access is delivered through Sirion's "Business API & Integrations" program: a tenant administrator provisions an OAuth 2.0 Client Id and Client Secret, and the API reference is available only to authenticated Sirion users (
docs.sirion.aiis login-walled; the help guide is reached inside the tenant app via My Account → Resources → Help Guide). Because the reference is gated, the endpoint paths and schemas in this repository are MODELED from public product references and honestly flagged as such — they are not copied from an official public reference document.
Sirion manages the full agreement lifecycle — authoring, negotiation, e-signature, a searchable contract repository, AI metadata and clause extraction, obligation and performance management, and supplier / counterparty governance. SirionOne is RESTful ("any activity possible in the web application is possible via the APIs"), with pre-built connectors (Salesforce, SAP Ariba, SAP S/4HANA, DocuSign), iPaaS support, and configurable outbound webhooks that deliver event-based, asynchronous notifications.
APIs.json: https://raw.githubusercontent.com/api-evangelist/sirion/refs/heads/main/apis.yml
Confirmed (public sources):
- SirionOne is RESTful; the web application's activities are available via the API.
- Authentication is OAuth 2.0 client credentials (OAuth Client Id + Client Secret) for Sirion B2B APIs, generated under Admin 2.0 → Business API & Integrations (OAuth Client Setup).
- Configurable outbound webhooks with filtering on static and custom single/multi-select fields; event-based, asynchronous processing.
- Core entities: contracts, contract requests (CDRs), metadata/clauses, obligations, suppliers/counterparties.
- Pre-built connectors and iPaaS (Salesforce, SAP Ariba, SAP S/4HANA, DocuSign).
Modeled (not publicly confirmable):
- All specific endpoint paths and request/response schemas in
openapi/sirion-openapi.yml. - The OAuth token URL and the per-tenant API host (modeled on the confirmed product domain
sirioncloud.com).
- Contract Management
- Contract Lifecycle Management
- CLM
- Contracts
- AI
- Enterprise
- Legal
- Agreements
- Supplier Management
- Obligations
- Created: 2026-07-12
- Modified: 2026-07-12
List, retrieve, create, update, and search executed contracts / agreements in the SirionOne repository. Base host: https://{tenant}.sirioncloud.com (modeled).
Create and track Contract Requests (CDRs) that drive intake and authoring workflows. Confirmed conceptually by the SAP Ariba integration (a CDR reaching a workflow stage triggers a Contract Workspace); paths modeled.
Read and update contract metadata fields and AI-extracted clauses kept consistent across integrated CRM/ERP systems.
Manage contractual obligations and performance / compliance tracking derived from agreements.
Manage suppliers and counterparties associated with contracts, synchronized with procurement systems such as SAP Ariba.
Configure outbound webhooks and integration flows. Webhook rules support filtering on static and custom single/multi-select fields, delivering event-based, asynchronous notifications (server-to-endpoint HTTP POST, not a client WebSocket).
- Authentication
- Website
- Documentation — login-walled
- Plans
- Rate Limits
- Fin Ops
- Domain Security
Does Sirion expose a documented public WebSocket API? No. Sirion's surface is
OAuth2 REST plus outbound webhooks (HTTP POST callbacks). No wss:// endpoint is
documented in any public Sirion material. See review.yml.
FN: Kin Lane Email: kin@apievangelist.com