generated: '2026-07-19' method: searched source: live probes of Lineage-operated hosts, 2026-07-19 notes: >- Lineage (onelineage.com) publishes no public developer or API surface. The only machine-readable discovery documents reachable on Lineage-operated hosts are the OpenID Connect discovery documents behind the two customer-facing portals: the Lineage Link customer identity service (an Auth0 tenant fronted by the custom domain ciam.lineageapps.com) and the Lineage Link Help community (a Salesforce Experience Cloud site). Both discovery documents are platform-standard for their vendor, not Lineage-authored API contracts. hosts: - host: https://www.onelineage.com documents: - path: /.well-known/security.txt status: 404 - path: /.well-known/openid-configuration status: 404 - path: /.well-known/oauth-authorization-server status: 404 - path: /.well-known/api-catalog status: 404 - path: /.well-known/ai-plugin.json status: 404 - path: /llms.txt status: 403 - path: /robots.txt status: 200 - host: https://ciam.lineageapps.com role: Lineage Link customer identity (CIAM) notes: >- Custom domain in front of an ASP.NET Core relying-party application; it does not serve OIDC discovery itself (requests redirect to the login flow). The upstream identity provider is the Auth0 tenant lineage-ciam.us.auth0.com, confirmed by the 302 redirect to https://lineage-ciam.us.auth0.com/authorize. documents: - path: /.well-known/openid-configuration status: 302 redirects_to: https://lineage-ciam.us.auth0.com/authorize - host: https://lineage-ciam.us.auth0.com role: Auth0 tenant backing Lineage Link customer identity documents: - path: /.well-known/openid-configuration status: 200 file: lineage-ciam-openid-configuration.json - host: https://lineagelinkhelp.onelineage.com role: Lineage Link Help community (Salesforce Experience Cloud) documents: - path: /.well-known/openid-configuration status: 200 file: lineage-linkhelp-openid-configuration.json - path: /.well-known/oauth-authorization-server status: 401 - path: /.well-known/security.txt status: 401 - path: /.well-known/api-catalog status: 401 - path: /.well-known/ai-plugin.json status: 401 security_txt: null api_catalog: null