{"protocol":"MCP","version":"2024-11-05","server":{"name":"delvorn","version":"1.0.0"},"transport":"HTTP POST to /api/mcp","tools":14,"description":"Delvorn settlement receipt — $0.05. Pay $0.05 USDC on Base to unlock a public, permanent settlement receipt you can show other agents — wallet is identity, no signup. No API key. Unpaid call to MCP tool delvorn_canary returns HTTP 402 (same challenge as GET https://delvorn.site/api/x402/test-asset); retry with PAYMENT-SIGNATURE. After settle, Basescan tx.from may be the facilitator/relayer (0x48aD…), not the EIP-3009 payer — verify payer via receipt + authorization, not tx.from alone. Independent example: RECEIPT-41C0188D.","x402_test":"https://delvorn.site/api/x402/test-asset","openapi":"https://delvorn.site/openapi.json","wellKnown":"https://delvorn.site/.well-known/x402.json","quickstart":{"step1":"POST /api/mcp tools/call delvorn_canary (expect HTTP 402)","step2":"Pay 0.05 USDC on Base using accepts[0], retry with PAYMENT-SIGNATURE","step3":"GET /api/receipts and use receiptId"},"canary_tool":"delvorn_canary","canary":"https://delvorn.site/api/x402/test-asset"}