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.