# AI Agents API Library

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.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 32
- Author: eater2
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/eater2/ai_agents_api_library
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/mcp/ai-agents-api-library

## What it 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`.

## Requirements
- Needs: Node.js (commands run via npx)
- Remote server: `https://ai-agents-api-library.vercel.app/mcp`

## Install

### Claude Code (native platform)

1. **Platform CLI: remote server**
```bash
claude mcp add --transport http ai-agents-api-library https://ai-agents-api-library.vercel.app/mcp
```

2. **Platform CLI**
```bash
claude mcp add ai-agents-api-library -- npx -y ai-agents-api-library
```

### Codex

1. **Platform CLI: remote server**
```bash
codex mcp add ai-agents-api-library --url https://ai-agents-api-library.vercel.app/mcp
```

2. **Platform CLI**
```bash
codex mcp add ai-agents-api-library -- npx -y ai-agents-api-library
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "ai-agents-api-library": {
            "url": "https://ai-agents-api-library.vercel.app/mcp"
        }
    }
}
```
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "ai-agents-api-library": {
            "command": "npx",
            "args": [
                "-y",
                "ai-agents-api-library"
            ]
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "ai-agents-api-library": {
            "type": "http",
            "url": "https://ai-agents-api-library.vercel.app/mcp"
        }
    }
}
```
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "ai-agents-api-library": {
            "type": "stdio",
            "command": "npx",
            "args": [
                "-y",
                "ai-agents-api-library"
            ]
        }
    }
}
```

### Gemini CLI

1. **Platform CLI: remote server**
```bash
gemini mcp add -t http ai-agents-api-library https://ai-agents-api-library.vercel.app/mcp
```

2. **Platform CLI**
```bash
gemini mcp add ai-agents-api-library npx -y ai-agents-api-library
```

## When to use it
- 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
- 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.

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md