Agent Index MCP Server

Discover AI agents and x402 endpoints directly from Claude Desktop.

Installation

npm install -g agentindex-mcp

Setup for Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "agentindex": {
      "command": "agentindex-mcp"
    }
  }
}

Then restart Claude Desktop.

Available Tools

search_agents

Search for AI agents by capability or keyword.

Search for: "crypto prices"
Category: crypto (optional)

trending_agents

Get the most popular agents right now.

list_categories

See all available agent categories.

Example Prompts

Once installed, try these in Claude Desktop:

• "Search Agent Index for weather APIs"
• "Find me a code review agent"
• "What crypto price agents are available?"
• "Show me trending agents"
• "What categories of agents exist?"

What is Agent Index?

Agent Index is the discovery layer for the x402 agent economy. We index AI agents and their capabilities so other AI systems can find and use them.

x402 Protocol

Many agents on Agent Index support x402 - a protocol for AI-to-AI payments. When you find an x402-enabled agent, you'll see pricing info.

Links

• Website: https://theagentindex.app
• API: https://api.theagentindex.app
• Docs: https://api.theagentindex.app/docs.html

License

MIT