OpenAPI Directory
Provides a Model Context Protocol server for accessing the world's largest repository of OpenAPI specifications and integrating custom APIs, enhancing LLM coding agent accuracy and preventing hallucinations.
About
The OpenAPI Directory server acts as a Model Context Protocol (MCP) server, offering comprehensive access to the vast APIs.guru directory, which boasts over 3,000 OpenAPI specifications from hundreds of providers. This powerful tool is designed to combat LLM coding agent hallucinations by providing structured, context-optimized API information. It also uniquely allows users to seamlessly integrate their own custom OpenAPI specifications, making it a unified hub for both public and private API discovery and interaction within AI-driven development workflows.
Key Features
- Comprehensive API Coverage (3,000+ API specs from APIs.guru)
- 3 GitHub stars
- Rich Tool Set (22 specialized tools and prompts for API analysis and code generation)
- Custom OpenAPI Import with zero-touch integration
- Context-Aware Security Scanning for custom specs
- Context Optimized progressive discovery (reduces context usage by ~95%)
Use Cases
- Efficiently discovering and evaluating public APIs for LLM-driven development
- Integrating and managing custom internal or private APIs alongside public directories
- Generating API integration guides, code examples, and authentication flows with context-optimized prompts
