Top API Directory AI Tools

These platforms serve as centralized hubs for discovering, testing, and integrating the technical building blocks required to scale your software infrastructure. They simplify the development process by surfacing documentation and endpoint performance data in a single searchable interface. When evaluating options, prioritize developer experience, the depth of technical metadata provided, and how easily the interface maps to your existing codebase.

McpHubs
McpHubs

The largest collection of Model Context Protocol servers

FindSkills
FindSkills

The open directory your AI agent actually knows how to use.

x402Hub
x402Hub

Trust scores for x402 API & MCP services — for AI agents

WebMCP Registry
WebMCP Registry

The public index for WebMCP tool contracts

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