Cross-Protocol Receipt

Try before payment

Inspect a representative partial result, exact price and copy-ready upgrade instructions. No wallet, signature or payment required.

Copy-ready MCP call

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "cross_protocol_receipt",
    "arguments": {"receipts":[{"protocol":"mcp","transaction_id":"tx1","commitment_sha256":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"},{"protocol":"a2a","transaction_id":"tx1","commitment_sha256":"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"}]}
  }
}

What the agent receives

Protocol set, consistent transaction identity, receipt count and immutable bundle hash.

No API key or subscription. The first paid request returns HTTP 402 payment requirements; an x402 client signs and retries automatically.