swag2mcp

swag2mcp is an MCP server that bridges OpenAPI/Swagger/Postman API specifications to LLM agents, enabling discovery, inspection, invocation, and analysis of REST APIs without modifying server code.

API Discovery & Navigation — List and retrieve specs, collections, tags, and endpoints. Use search to find endpoints by natural language or structured queries. Inspect Endpoints — Retrieve full OpenAPI operation details (parameters, request body, responses) via inspect before invoking. Invoke APIs — Execute real HTTP calls with invoke, automatic authentication, and handling of large responses (saved to disk). Large Response Processing — Explore saved responses using response_outline, response_slice, response_filter, and response_compress to navigate, filter, sample, and compress data. System Info — Check runtime configuration, active specs, rate limits, mock mode via info.

Allows importing Postman collections and exposing the defined API endpoints as tools for discovery, inspection, and invocation.

Allows loading Swagger/OpenAPI API specifications and exposing their endpoints as tools for listing, inspecting, and calling REST API operations.