Stytch Authentication APIs

REST discovered

Details

URL: https://api.stytch.com
Spec: https://raw.githubusercontent.com/stytchauth/stytch-openapi/main/openapi.yml
Docs: https://stytch.com/docs/api-reference/b2b/api/overview

Authentication

OAuth 2.0 oauth2 discovered

Authorization: Basic <credential>

OAuth 2.0 — self-onboarding

Point your MCP client at the server URL and approve access in the browser. The server accepts a Client ID Metadata Document (CIMD), so the client authenticates with its own hosted URL as the client_id — nothing to register.