API ReferenceConnected Accounts
Complete a deferred OAuth connection after identity verificationv3.1
Redeems a single-use session_uri handed to a project's OAuth callback verifier. Composio validates that the caller's project owns the pending connection and that user_id matches the connection owner, then completes the token exchange and returns the now-ACTIVE connected account. The session is single-use.
Authorization
ApiKeyAuth x-api-key<token>
Project API key authentication
In: header
Request Body
application/json
session_uristringRequired
The opaque session URI received on the verifier redirect.
user_idstringRequired
The user this connection was initiated for.
Response Body
application/json
application/json
application/json
application/json
application/json
curl -X POST "https://example.com/api/v3.1/connected_accounts/complete_auth" \ -H "Content-Type: application/json" \ -d '{ "session_uri": "string", "user_id": "string" }'{ "connected_account_id": "string", "toolkit_slug": "string"}