Pay Mcp

Plugs USDC payments on Base directly into Claude Desktop, Cursor, or any MCP client. Handles direct transfers, metered tabs for per-call billing, and automatic x402 paywall detection with HTTP requests. The server auto-generates a wallet on first run and stores it in your OS keychain, so there's no manual key management. You get 15 tools covering send/request operations, tab lifecycle (open, charge, close, topup), wallet funding and withdrawal, service discovery, and webhook registration for payment events. Useful if you're building agents that need to pay for third-party APIs or accept payments themselves. Works on Base mainnet or Sepolia testnet with a one-line config change.