Turns Claude into a paying API consumer using USDC on Base L2. Exposes three tools: xenarch_check_gate to inspect if a URL requires payment, xenarch_pay to sign an EIP-3009 transfer and fetch gated content, and xenarch_get_history to review past transactions. The agent wallet only needs USDC, never ETH. Payments settle on-chain directly to the publisher with zero platform fees. Implements the x402 spec for HTTP 402 responses. Reach for this when you want Claude to autonomously pay for paywalled APIs or content without API keys, subscriptions, or manual approval flows. Works with any MCP client including Cursor, LangChain, and CrewAI.
claude mcp add --transport stdio xenarch-ai-xenarch-mcp uvx xenarch-mcp