Links a self-declared User ID to the pending flow as the user’s identity. On success, redirects to the MCPs page.
The User ID is self-declared with no server-side verification — it matches
the trust model of the X-Bf-User-Id header in the LLM Gateway path.
Request body is application/x-www-form-urlencoded (browser form submission).
Bearer token authentication. Use your provider API key or Bifrost authentication token.
Virtual keys (prefixed with sk-bf-) can also be passed here.
Redirect to /oauth/consent/mcps?flow_id=xxx on success, or back to
/oauth/consent?flow_id=xxx&error=... on failure.