swag2mcp
Bridges OpenAPI/Swagger/Postman API specifications with LLM agents via the Model Context Protocol (MCP).
Not every API speaks MCP — private endpoints, internal services, legacy systems, and third-party APIs rarely do. swag2mcp wraps any REST API in an MCP interface, giving LLM agents instant access to your entire API surface without modifying a single line of server code. Through live API calls, the LLM gains real-world knowledge to make informed decisions, automate workflows, and act on your data — not just guess.
Your API speaks LLM
One line of config turns any OpenAPI/Swagger/Postman file into an MCP server. LLM agents discover, inspect, and invoke your APIs — zero integration code.
Stop writing wrappers
Every time you connect a new API to an LLM, you write the same boilerplate: spec parsing, authentication, error handling, rate limiting. swag2mcp does it for you — 19 ready-made MCP tools.
Who needs this
| Role | Why |
|---|---|
| AI Agent Developer | Connect any API in 2 minutes, not 2 days |
| MCP Engineer | No handler code — just point to a spec |
| Architect | Single API integration layer for all LLMs in your company |
| Data Analyst | Access APIs via natural language, no coding |
| DevOps / SRE | Monitoring and automation through LLM without extra services |
| Integrator | 9 auth methods out of the box — Basic to OAuth2 to HMAC |
| QA Engineer | Mock server for isolated testing without real APIs |
| Product Manager | Rapid AI feature prototypes without backend work |
| and many others |
License
Licensed under the Apache License, Version 2.0.
See LICENSE for the full license text.