Connects Claude to 100+ paid APIs through the x402 protocol and Coinbase's CDP Bazaar, handling USDC micropayments on Base automatically. The server auto-discovers available endpoints every five minutes, so new APIs appear without restarts. Each tool call costs between $0.0001 and $0.10 in USDC, paid via EIP-3009 signatures with no gas fees for the caller. You configure it with a Base wallet private key and optional price caps. Reach for this when you need Claude to access paid data services or APIs that use HTTP 402 payment gates, especially if you want the toolset to grow dynamically as new providers join the Bazaar.
claude mcp add --transport stdio x402node-x402-mcp uvx x402-mcp