{ "opencollection": "1.0.0", "info": { "name": "Login.gov OpenID Connect Authentication API", "version": "2026-01" }, "items": [ { "info": { "name": "Authentication", "type": "folder" }, "items": [ { "info": { "name": "Initiate SAML SSO (HTTP-Redirect)", "type": "http" }, "http": { "method": "GET", "url": "https://idp.int.identitysandbox.gov/api/saml/auth2026", "params": [ { "name": "SAMLRequest", "value": "", "type": "query", "description": "Base64-encoded DEFLATE-compressed AuthnRequest." }, { "name": "RelayState", "value": "", "type": "query", "description": "Opaque value echoed back in the SAML response." }, { "name": "SigAlg", "value": "", "type": "query", "description": "Signature algorithm URI when the request is signed." }, { "name": "Signature", "value": "", "type": "query", "description": "Base64-encoded signature over the request." } ] }, "docs": "Accepts a Base64-encoded, DEFLATE-compressed `SAMLRequest` via HTTP-Redirect.\nThe user authenticates with Login.gov and the IdP responds with a signed SAML\nassertion POSTed to the SP's Assertion Consumer Service URL.\n" } ] } ], "bundled": true }