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SignalHarness EVM Receipt Summarizer
x402
SignalHarness EVM Receipt Summarizer is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).
Accepts a raw EVM transaction receipt (as text) and returns a human-readable summary with warnings and evidence scope metadata.
Price / call$0.01
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object containing a plain-language receipt_summary string, a list of warnings (e.g. anomalies or data quality issues), an evidence_scope string indicating the source of analyzed data, a replay flag, and a standard receipt envelope with payment metadata including asset, network, amounts, timing, and a SHA-256 hash of the result.
Example use cases
Decode a failed on-chain transaction
“I got this EVM transaction receipt back and I'm not sure what went wrong — can you summarize it and tell me if there are any warnings? Here's the raw data: {receipt text}.”
Audit a DeFi swap receipt
“I just executed a swap on Base and got this receipt back. Can you break it down into plain English so I know what actually happened and whether anything looks off?”
Explain a payment confirmation to a non-technical user
“My customer sent me this EVM receipt as proof of payment — can you summarize what it says in simple terms so I can confirm the transaction went through correctly?”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/evm_receipt_summary/invokeWhen to prefer
Choose this endpoint when you need a fast, agent-native plain-English interpretation of an EVM transaction receipt — especially on Base/EIP-155 chains — and want structured output including warnings and evidence scope. Prefer it over generic LLM prompting when you need a consistent schema, pay-per-call pricing at $0.01, and an auditable receipt of the analysis itself.
Side effects
- Malformed or non-EVM receipt text results in parsing errors or low-confidence summaries
- Receipt text exceeding 65,536 characters is rejected
- Ambiguous or incomplete receipt data may produce warnings but still return a partial summary
- Payment not confirmed may result in HTTP 402 before processing begins
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| evm_receipt_request | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Supplied receipt fields are not proof of finality."
],
"service_id": "evm_receipt_summary",
"evidence_scope": "caller_supplied_data",
"receipt_summary": "{\"block_hash\":\"0xbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\",\"block_number\":\"100\",\"contract_address\":null,\"effective_gas_price\":\"100\",\"gas_used\":\"21000\",\"log_count\":0,\"removed_log_count\":0,\"status\":\"success\",\"transaction_hash\":\"0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"}"
},
"status": "succeeded",
"receipt": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"usage": [],
"status": "succeeded",
"network": "eip155:8453",
"artifacts": [],
"endedAtMs": 0,
"latencyMs": 0,
"paymentId": "example-payment",
"receiptId": "example-receipt",
"requestId": "example-request",
"serviceId": "evm_receipt_summary",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "10000",
"resultSha256": "22e8d12c93be2f0d8c46a2d55898dd8689a015e82a349d09fa8b937606f67750",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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