# FastMCP Authentication

**Canonical:** https://apis.io/apis/fastmcp/fastmcp-auth/  
**Provider:** FastMCP — https://apis.io/providers/fastmcp/  
**Documentation:** https://gofastmcp.com/servers/auth/authentication

FastMCP Authentication is one of 6 APIs that [FastMCP](https://apis.io/providers/fastmcp/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP, Authentication, OIDC, Authorization, and Security. The published artifact set on APIs.io includes API documentation.

FastMCP ships a complete authentication and authorization layer for MCP servers. Servers can verify tokens, terminate OAuth flows directly, or proxy to an external OAuth or OIDC provider, and they can combine multiple authentication sources. Out-of-the-box providers cover Auth0, AWS Cognito, Azure/Entra ID, GitHub, Google, Discord, Keycloak, OCI IAM, Supabase, WorkOS, AuthKit, Descope, PropelAuth, and Scalekit. Authorization integrations include Permit.io and Eunomia.

## Machine-readable artifacts (8)

- **Documentation** — https://gofastmcp.com/servers/auth/authentication
- **Documentation** — https://gofastmcp.com/servers/auth/token-verification
- **Documentation** — https://gofastmcp.com/servers/auth/oauth-proxy
- **Documentation** — https://gofastmcp.com/servers/auth/oidc-proxy
- **Documentation** — https://gofastmcp.com/servers/auth/multi-auth
- **Documentation** — https://gofastmcp.com/servers/auth/remote-oauth
- **Documentation** — https://gofastmcp.com/servers/auth/full-oauth-server
- **Documentation** — https://gofastmcp.com/servers/authorization

## Other FastMCP APIs (5)

- [FastMCP Server](https://apis.io/apis/fastmcp/fastmcp-server/)
- [FastMCP Client](https://apis.io/apis/fastmcp/fastmcp-client/)
- [FastMCP Apps](https://apis.io/apis/fastmcp/fastmcp-apps/)
- [FastMCP OpenAPI and FastAPI Integration](https://apis.io/apis/fastmcp/fastmcp-openapi/)
- [FastMCP CLI](https://apis.io/apis/fastmcp/fastmcp-cli/)

## Tags

MCP, Authentication, OIDC, Authorization, Security

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fastmcp/fastmcp-auth/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fastmcp/.