OpenAPI Transformer
by mattt · File Systems · mcp-server, api, ai
Transforms OpenAPI specifications into ready-to-use tools that enable seamless interaction with REST APIs through automatic endpoint mapping, authentication handling, and response formatting.
Emcee is a CLI tool that creates Model Context Protocol servers from OpenAPI specifications, enabling AI assistants to interact with REST APIs through JSON-RPC. Developed by Loopwork AI, it processes an OpenAPI spec (from a file, URL, or stdin) and automatically generates tools that map to API endpoints, handling authentication, parameter validation, and response formatting. The tool supports various authentication methods including Bearer tokens and Basic auth, with secure 1Password integration for credential management. Emcee is particularly useful for quickly exposing existing APIs to Claude Desktop and other MCP-compatible assistants without writing custom integration code.
Source: https://github.com/mattt/emcee
Install
git clone https://github.com/mattt/emceeTags: mcp-server, api, ai
⭐ 320 GitHub stars · Source: pulsemcp
About File Systems MCP servers and Claude skills
File Systems MCP servers extend what AI agents can do inside Claude Code, Cursor, Copilot, Codex, and Windsurf. The Skiln directory indexes 16,000+ such integrations across 22 categories.
OpenAPI Transformer is one of hundreds of File Systems entries indexed on Skiln. Browse the full File Systems category or the complete directory of Claude skills, MCP servers, agents, commands, and hooks.
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Frequently asked questions
How do I install OpenAPI Transformer?
Add the install command above to your Claude Code, Cursor, or Windsurf MCP configuration. Most servers register via npx, a local command, or a Docker image. Refer to the source repository for environment variables and credential requirements.
Which clients support OpenAPI Transformer?
Any MCP-compatible client works: Claude Desktop, Claude Code CLI, Cursor, Windsurf, Zed, and VS Code with the official MCP extension. OpenAI Codex and GitHub Copilot increasingly support MCP via adapter bridges.
Is OpenAPI Transformer free?
The server itself is typically open source. Any upstream service (API keys, paid tiers, hosted infrastructure) may have its own pricing. Check the source repository for details.