AI Agents API Library — Claude Code MCP server: what it does
Searches a machine-readable directory of APIs and MCP servers for AI agents. Delivers auth requirements, free tiers, and doc links directly to your agent.
claude mcp add --transport http ai-agents-api-library https://ai-agents-api-library.vercel.app/mcpWhat AI Agents API Library does
This MCP server connects your coding assistant to a curated collection of 336 external services grouped into 29 categories. It covers tools for browser automation, vector storage, web crawling, and messaging designed for automated agent operation.
Every entry tracks documentation URLs, authentication requirements, verification dates, and whether an official MCP server exists. In total, 234 official MCP implementations are recorded in the registry.
The hosted remote endpoint is accessible without an API key. Running it requires only an HTTP MCP connection or local execution through npx.
What it helps with
- discover agent-ready APIs across 29 specialized categories
- check if a service provides an official MCP integration
- verify authentication types and free tier availability before integration
- retrieve direct documentation endpoints for agent tools
Example prompts for the agent
- Find web scraping services with a free tier and an official MCP server.
- Which vector databases in the library offer MCP endpoints?
- Show me documentation links and auth requirements for speech-to-text APIs.
How to install AI Agents API Library
1Platform CLI: remote server
claude mcp add --transport http ai-agents-api-library https://ai-agents-api-library.vercel.app/mcp2Platform CLI
claude mcp add ai-agents-api-library -- npx -y ai-agents-api-library1Platform CLI: remote server
codex mcp add ai-agents-api-library --url https://ai-agents-api-library.vercel.app/mcp2Platform CLI
codex mcp add ai-agents-api-library -- npx -y ai-agents-api-libraryConfig file
{
"mcpServers": {
"ai-agents-api-library": {
"url": "https://ai-agents-api-library.vercel.app/mcp"
}
}
}{
"mcpServers": {
"ai-agents-api-library": {
"command": "npx",
"args": [
"-y",
"ai-agents-api-library"
]
}
}
}Config file
{
"servers": {
"ai-agents-api-library": {
"type": "http",
"url": "https://ai-agents-api-library.vercel.app/mcp"
}
}
}{
"servers": {
"ai-agents-api-library": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"ai-agents-api-library"
]
}
}
}1Platform CLI: remote server
gemini mcp add -t http ai-agents-api-library https://ai-agents-api-library.vercel.app/mcp2Platform CLI
gemini mcp add ai-agents-api-library npx -y ai-agents-api-libraryStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about AI Agents API Library
How do I install AI Agents API Library in Claude Code?
Run claude mcp add --transport http ai-agents-api-library https://ai-agents-api-library.vercel.app/mcp to use the hosted endpoint. Alternatively, run claude mcp add ai-agents-api-library -- npx -y ai-agents-api-library for local execution.
What does AI Agents API Library do?
It provides an index of 336 developer services that agents can operate programmatically. It supplies your agent with documentation links, auth options, and MCP server availability.
Is an API key required to access the catalog?
The catalog itself requires no API key when connected through the remote endpoint. You only need credentials for the individual third-party services your agent decides to call.
