xint-oauth-pkce-callback-server-binds-to-port-3333-not-8477
xint’s auth setup command starts a local PKCE callback server on port 3333, not on 8477 or any other configurable port. The X Developer Portal app must register exactly http://127.0.0.1:3333/callback as the redirect URI or the OAuth flow returns a callback URL mismatch error. Configuring 8477 in the portal while xint uses 3333 silently breaks all Phase 2b auth.
Related
- xint-oauth-callback-port-mismatch-8477-vs-3333
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