@402index/mcp-server

402 Index MCP Server

MCP server for AI agent service discovery via the 402 Index directory.

Tools

Tool	Description
search_services	Search/filter paid API services (protocol, category, health, price, etc.)
get_service_detail	Get full details for a single service including health check history
list_categories	List all categories with service counts
get_directory_stats	Directory health, totals, sync timestamps

Setup

cd mcp-server
npm install
npm run build

Configuration

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "402index": {
      "command": "node",
      "args": ["/path/to/402index/mcp-server/dist/index.js"],
      "env": {
        "INDEX_URL": "https://402index.io"
      }
    }
  }
}

Claude Code

Add to .claude/settings.json or run:

claude mcp add 402index node /path/to/402index/mcp-server/dist/index.js

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "402index": {
      "command": "node",
      "args": ["/path/to/402index/mcp-server/dist/index.js"]
    }
  }
}

Environment Variables

Variable	Default	Description
INDEX_URL	https://402index.io	Base URL of the 402 Index API

Example Prompts

• "Find healthy L402 weather APIs under $0.01"
• "What categories of paid APIs are available?"
• "Show me details for service 42"
• "How many services are in the directory?"