{"data":{"slug":"emcee","name":"emcee","tagline":"MIT turn any OpenAPI into an MCP server for Claude and friends","category":"agents","categoryName":"AI Agents","url":"https://emcee.sh","github":"https://github.com/mattt/emcee","pricing":"open-source","hook":"emcee generates an MCP server from an OpenAPI spec so Claude Desktop and other MCP clients can call an existing HTTP API like a plugin — pass the OpenAPI URL and go.","whatsGood":"MIT (mattt/emcee). Homebrew tap, trivial Claude Desktop config (`emcee https://…/openapi.json`), docs/site at emcee.sh. Best when the API already has a decent OpenAPI and you do not want a hand-written MCP wrapper.","theCatch":"Vs mcp-use / Composio / Klavis: emcee is a thin OpenAPI→MCP generator, not a managed OAuth toolkit marketplace or fullstack MCP framework. Garbage OpenAPI → garbage tools; auth/scopes still need careful client config.","verdict":"MIT OpenAPI→MCP primitive when you already ship a clean spec and want Claude/MCP clients on it in minutes.","addedAt":"2026-09-25","featured":false,"domain":"AI Agents","subSpecialty":"Agents","subcategory":"MCP","tags":["mcp","api","desktop-app","self-host","permissive"],"capabilities":["mcp","api"],"surfaces":["MCP","API","Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"OSS/MIT","githubStars":332,"starsPerWeek":4,"access":"free","archived":false,"repo":{"createdAt":"2025-01-16","pushedAt":"2026-07-04","license":"MIT","archived":false,"checkedAt":"2026-10-19"}},"related":[{"slug":"claude-code","name":"Claude Code","tagline":"Terminal-first coding agent with deep repository context"},{"slug":"cursor","name":"Cursor","tagline":"The AI-first code editor that understands your codebase"},{"slug":"devin","name":"Devin","tagline":"Autonomous AI engineer for defined engineering tasks"},{"slug":"stagehand","name":"Stagehand","tagline":"AI-native browser automation that mixes code and natural language"},{"slug":"browser-use","name":"Browser Use","tagline":"Open-source framework for LLM-driven browser agents"}],"links":{"self":"/api/gems/emcee","html":"/gems/emcee","markdown":"/gems/emcee.md","category":"/api/gems?category=agents","categoryPage":"/stacks/agents"}}