Grain Public API

REST discovered

Details

URL: https://api.grain.com/_/public-api
Docs: https://developers.grain.com/

Authentication

Personal Access Token Authorization: Bearer <credential> + Personal Access Token Public-Api-Version: <credential> discovered

Personal Access Token bearer Get token ↗

In Grain, open Workspace Settings → API and click Generate personal token. This token acts as the signed-in user's personal API access and only grants access to meetings that user can view.

Personal Access Token Authorization: Bearer <credential> + Personal Access Token Public-Api-Version: <credential> discovered

OAuth 2.0 Authorization: Bearer <credential> + OAuth 2.0 Public-Api-Version: <credential> discovered

OAuth 2.0 oauth2

OAuth 2.0 — self-onboarding

Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.