{"ok":true,"tool":"x402.decode","title":"Decode an x402 challenge","endpoint":"https://mcp.naxytra.com/mcp/http402/x402.decode","usage":"POST a JSON-RPC tools/call (params.name may be omitted); unpaid answers HTTP 402 with the price","inputSchema":{"type":"object","properties":{"challenge":{"type":["string","object"],"description":"Base64 PAYMENT-REQUIRED value, challenge JSON text, or the challenge object."}},"required":["challenge"],"additionalProperties":false},"x402":"https://mcp.naxytra.com/.well-known/x402"}