What is Open API Directory MCP Server?
OpenAPI Directory MCP is your modern API hub—curated specs, smart prompts, and tools to eliminate LLM hallucinations. Empower developers and AI with seamless, reliable, and transparent API integration.
Problem
Developers and AI engineers struggle with integrating APIs due to unreliable or outdated API specifications and LLM hallucinations generating inaccurate API calls, leading to integration errors and inefficiencies.
Solution
A developer toolkit providing curated OpenAPI specifications and smart prompts to eliminate LLM hallucinations, enabling standardized API integration and reliable AI-generated code (e.g., real-time access to 23,000+ APIs like GitHub, Slack).
Customers
API developers, AI/ML engineers, and SaaS teams building integrations or LLM-powered tools requiring accurate API data.
Unique Features
Aggregates and maintains the largest OpenAPI directory optimized for AI training, with built-in validation tools to ensure schema accuracy and hallucination reduction.
User Comments
Centralized API specs save hours of manual research
Drastically reduces LLM 'fake API' errors
Essential for RAG pipelines
Simplifies API documentation parsing
Smart prompts improve code reliability
Traction
Launched on ProductHunt (exact metrics unavailable from provided data).
Market Size
Global API management market projected to reach $13.7 billion by 2027 (MarketsandMarkets), with AI integration tools being fastest-growing segment.
