OpenAPI MCP Proxy

Example Use Cases

• 1

  Call arbitrary REST API endpoints described by an OpenAPI spec without writing bespoke integration code.

• 2

  Dynamic tool discovery and invocation (auto-generated tools per path/method) to orchestrate multi-step workflows across external APIs.

• 3

  Simple, configurable authentication and request shaping (header auth, payload token stripping, extra headers, and server URL overrides) when interacting with diverse APIs.

Description

This package implements a Model Context Protocol (MCP) server that converts OpenAPI v3 (and some v2) specifications into callable MCP tools, either by auto-generating a tool per endpoint or via a simpler FastMCP mode. It supports authentication (header and payload), endpoint filtering, server URL overrides, extra headers, and configurable SSL verification. The proxy is useful for integrating third‑party REST APIs into MCP-based agents and workflows without writing custom adapters.