# Catalogue

> Public catalogue components.

JSON: https://leyline.ahensya.com/api/v1/components

- [MCP / AI Gateway](https://leyline.ahensya.com/components/mcp-ai-gateway.md): Gateway layer that routes model calls, discovers MCP tools, and applies identity, policy, and spend controls before invocations.
- [Casdoor](https://leyline.ahensya.com/components/casdoor.md): An open-source, self-hosted identity and access management platform and authentication server with a web console, supporting SSO, multiple identity protocols, policy-based authorization, APIs, SDKs, and MCP.