{"protocol":"Model Context Protocol","spec_version":"2024-11-05","description":"AiFinPay MCP server exposes pay/quote/identity tools to MCP-aware agent runtimes (Claude Desktop, Cursor, etc.). Stdio transport; install locally via npx.","server":{"package":"@aifinpay/mcp","command":"npx","args":["@aifinpay/mcp"],"transport":"stdio"},"config_claude_desktop":{"mcpServers":{"aifinpay":{"command":"npx","args":["@aifinpay/mcp"],"env":{"AIFINPAY_AGENT_SECRET":"<base58 secret from Agent.new()>","AIFINPAY_MAX_USD":"0.50"}}}},"tools":[{"name":"payable_fetch","description":"Fetch any URL, auto-pay on 402."},{"name":"agent_address","description":"Show agent's pubkey (for funding)."},{"name":"agent_quote","description":"Preview cost before paying."},{"name":"pay_with_split","description":"Return on-chain split-payment instructions for direct B2B settlement (Polygon / Solana)."},{"name":"quote_split","description":"Pure-view fee breakdown."}],"source":"https://github.com/AiFinPay/sdk/tree/main/mcp","npm":"https://www.npmjs.com/package/@aifinpay/mcp","related":{"agent_card":"https://api.aifinpay.io/agent.json","manifesto":"https://api.aifinpay.io/manifesto.json","x402":"https://api.aifinpay.io/.well-known/x402.json"}}