MCP tools for AI agents — HTTP requests with automatic x402 micropayments
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# x402-mcp [](https://pypi.org/project/x402-mcp/) [](https://github.com/dsr-restyn/x402-mcp/actions) [](https://pypi.org/project/x402-mcp/) [](LICENSE) Give your AI agent a wallet. It pays for APIs automatically. x402-mcp is an [MCP](https://modelcontextprotocol.io/) server that adds HTTP request tools with automatic [x402](https://www.x402.org/) micropayments to any AI agent. When a request hits a 402-gated endpoint, payment happens automatically — no API keys, no accounts, no billing dashboards. Works with **any** x402-enabled service. Not locked to a single provider. ## How it works ``` Agent calls x402_fetch("https://some-api.com/data") → Server responds 402 Payment Required → x402-mcp returns payment details (amount, network, recipient) → Agent shows details to user, user approves → Agent calls x402_fetch(url, confirm_payment=True) → x402-mcp signs a gasless EIP-712 payment authorization → Agent gets the response ✓ ``` By default, your agent confirms payments with the user before paying. Set `X402_CONFIRM_PAYMENTS=false` to auto-pay without confirmation (original behavior). ## Quick start ```bash # Install and run the setup wizard uvx x402-mcp-setup ``` The wizard will: 1. Generate a fresh EVM wallet (or use your existing key with `--key`) 2. Show a QR code for your wallet address 3. Print funding instructions (testnet USDC is free) 4. Offer to write the MCP config directly to `~/.claude/mcp.json` (press Enter to accept) 5. Offer to watch for your first USDC deposit and confirm when it arrives Then restart Claude Code or Cursor — the server loads automatically. <details> <summary>Manual config (if you skip the auto-write)</summary> Paste into `~/.claude/mcp.json` (Claude Co…
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