THE INDEX · AUTHORIZATION & IDENTITY
Authorization & Identity
Authorization servers and identity layers that issue and validate the tokens an MCP server accepts. The MCP authorization specification builds on OAuth 2.1, so this category covers both MCP-specific products and general-purpose authorization servers used for MCP.
15 listings
Compare authorization & identity tools →︎Who can connect, and what may they do?
What belongs in this category
- OAuth 2.1 authorization servers used in front of MCP servers
- Identity platforms with documented MCP authorization support
- Products handling dynamic client registration, scopes, or agent delegation
Auth0 for AI Agents
Authorization & Identity
Provides OAuth 2.1 and OpenID Connect authorization for MCP servers, including discovery, client registration, resource-scoped tokens, and token exchange.
SaaS
AuthPlane
Authorization & Identity
A self-hosted OAuth 2.1 authorization server for MCP servers.
Self-hosted
MCP
Authorization & Identity
Adds MCP provider authentication to an application and provides a framework-agnostic remote auth client for verifying tokens and protecting resources when the MCP server is separate from Better Auth.
Self-hosted
Clerk
Authorization & Identity
Authentication platform with OAuth provider support used for MCP server authorization
SaaS
Inbound Apps
Authorization & Identity
Provides identity infrastructure for AI agents and MCP servers, including authorization, scoped access control, consent, token management, and DCR security.
SaaS
ext-auth
Authorization & Identity
Official repository of MCP authorization extensions
Self-hosted
Keycloak
Authorization & Identity
Keycloak is open-source identity and access management for applications and services.
Self-hosted
Ory Hydra
Authorization & Identity
OpenID-certified OAuth 2.0 server that delegates user authentication to your application
Hybrid
Permit.io
Authorization & Identity
Provides real-time, fine-grained authorization and policy-backed delegation, approvals, trust, and audit for humans, services, and AI agents.
Hybrid
Prefactor
Authorization & Identity
Records agent activity, classifies data risk, and stores quality evidence for reviewing agents in production.
Hybrid
Scalekit MCP Auth
Authorization & Identity
Drop-in OAuth 2.1 for any MCP server — user login, SSO, agent tokens, scopes, and DCR included
SaaS
Stytch Connected Apps
Authorization & Identity
Provides AI-agent authentication, authorization, and consent management, including an MCP authentication and authorization toolkit.
SaaS
workers-oauth-provider
Authorization & Identity
Adds OAuth 2.1 to HTTP APIs and remote MCP servers on Workers; KV-backed, with Client ID Metadata Document support
Self-hosted
WorkOS
Authorization & Identity
Provides OAuth authorization for MCP servers through AuthKit and WorkOS Connect.
SaaS
ZITADEL
Authorization & Identity
Open-source identity and access management platform for SaaS and B2B applications, providing SSO, MFA, passkeys, OIDC, SAML, SCIM, and multi-tenancy with self-hosted and SaaS deployment options.
Hybrid