Authorization for AI

Secure auth for MCP servers

Give AI agents access to your app with OAuth 2.1 flows, tool permissions, PKCE, scopes, and more.

Add OAuth to your MCP server

WorkOS AuthKit supports OAuth 2.1 as a compatible authorization server for MCP apps, based on the latest MCP protocol specification. This enables fine-grained authorization for agentic applications and workflows.

See an example MCP

Get started with MCP

Everything you need to master the basics and ship your first app

Read the MCP docs

We take the complexity of an evolving and intricate protocol and make securing it with AuthKit as easy as pasting a URL.

Read the docs

Fork MCP examples

Getting started quickly with open source templates. AuthKit MCP supports every language and framework.

View code on GitHub

Bring your own users

Already have users and login? WorkOS Connect can run as standalone middleware to only provide MCP OAuth flows — no migration necessary.

Get started

Auth for MCP has never been easier

WorkOS AuthKit handles all the complexity of the OAuth Authorization Server. You just build the MCP tools and resource endpoints.

Read the docs

Get your AuthKit domain


from fastmcp import FastMCP
from fastmcp.server.auth.providers.workos import AuthKitProvider

# The AuthKitProvider automatically discovers WorkOS endpoints
# and configures JWT token validation
auth_provider = AuthKitProvider(
    authkit_domain="https://your-project-12345.authkit.app",
    base_url="http://localhost:8000"  # Use your actual server URL
)

mcp = FastMCP(name="AuthKit Secured App", auth=auth_provider)

“WorkOS was the obvious choice for our MCP OAuth. Fast iteration, enterprise features built-in, and it just worked. Shipped Rube to everyone from indie devs to enterprise customers in two weeks.”

Rahul Tarak

Founding Engineer

“We wanted to ship an MCP server quickly and with WorkOS we were able to integrate in a matter of days to handle everything related to OAuth. This let us focus on building the best MCP server for our customers.”

Matthew McClure

Co-founder & VP of Developer Experience