> ## Documentation Index
> Fetch the complete documentation index at: https://resend.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Authorization Server Metadata

> RFC 8414 discovery document for the OAuth endpoints.

RFC 8414 metadata. Clients can discover this URL from the [protected-resource metadata](/api-reference/oauth/protected-resource-metadata)'s `authorization_servers` field, then use it to find the OAuth endpoints instead of hardcoding them.

<RequestExample>
  ```bash cURL theme={"theme":{"light":"github-light","dark":"vesper"}}
  curl 'https://api.resend.com/.well-known/oauth-authorization-server'
  ```
</RequestExample>

<ResponseExample>
  ```json Response theme={"theme":{"light":"github-light","dark":"vesper"}}
  {
    "issuer": "https://api.resend.com",
    "authorization_endpoint": "https://api.resend.com/oauth/authorize",
    "token_endpoint": "https://api.resend.com/oauth/token",
    "jwks_uri": "https://api.resend.com/.well-known/jwks.json",
    "registration_endpoint": "https://api.resend.com/oauth/register",
    "revocation_endpoint": "https://api.resend.com/oauth/revoke",
    "scopes_supported": ["full_access", "emails:send"],
    "response_types_supported": ["code"],
    "response_modes_supported": ["query"],
    "grant_types_supported": ["authorization_code", "refresh_token"],
    "token_endpoint_auth_methods_supported": ["none"],
    "code_challenge_methods_supported": ["S256"]
  }
  ```
</ResponseExample>

Response is cached for 300 seconds (`Cache-Control: public, max-age=300`).