Build MCP Servers on Catalyst

Catalyst provides authentication, authorization, resiliency, and observability for MCP servers — without requiring changes to MCP server code. Catalyst works with any MCP framework, any language, and any deployment target, including air-gapped environments.

For a conceptual explanation of what MCP is, the Server and Catalog primitives, and how Catalyst's identity model applies, see MCP concepts. For the reference index of the Catalog, see the MCP servers reference.

Get Started

Try these tutorials to secure an MCP server with Catalyst:

Access Policies

Control which applications can invoke MCP servers and their downstream tools with zero-trust access policies.

Authentication

Protect MCP endpoints with OAuth2 JWT token validation using bearer middleware.