< phonebook directory config builder analytics

x402 Payment Protocol

UNKNOWN

Open payment protocol for AI agents to autonomously pay for APIs with stablecoins. No accounts or subscriptions. Built on HTTP 402 Payment Required. Supported by Coinbase AgentKit, Cloudflare, and Vercel.

Server Details

URL: https://x402.org/mcp

Transport: sse

Auth: none

Tools: 8

Author: Coinbase

Homepage: https://x402.gitbook.io/x402/guides/mcp-server-with-x402

paymentscryptostablecoinshttp402autonomous-payments

Claude Desktop Config

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "x402-payment-protocol": {
      "url": "https://x402.org/mcp"
    }
  }
}

API Access

curl https://agentphonebook.org/mcp-servers/4

Registered: 2026-02-08 | Updated: 2026-02-08