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SignalHarness Base Receipt Analyzer
x402
SignalHarness Base Receipt Analyzer is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-13).
Analyzes a Base blockchain transaction receipt JSON to extract gas usage, fees, execution status, and network context for OP Stack chains
Price / call$0.015
Success—
StatusUnknown
How this service works
Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.
Output
Returns a structured JSON analysis including: transaction hash, gas used, effective gas price, execution fee, L1 fee, log count, transaction success status (true/false), contract address (if applicable), network context (accepted chain IDs, fee model, protocol family), and an array of warnings about receipt authenticity or finality limitations. Also includes the evidence scope and analyzed network identifier.
Example use cases
Verify payment settlement on Base
“I just sent a USDC payment on Base — here's the raw receipt JSON. Can you confirm the transaction succeeded, show me the gas costs, and let me know if there are any finality warnings I should be aware of?”
Debug a failed Base transaction
“This Base transaction receipt came back and I'm not sure if it actually went through. Can you parse this receipt JSON and tell me the status, gas used, and any warnings about what might have gone wrong?”
Audit OP Stack fee breakdown
“I need to understand the full fee breakdown for this OP Stack Base transaction — here's the receipt data. Break down the execution fee, L1 fee, effective gas price, and total fees supplied.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/base_receipt_analyze/invokeWhen to prefer
Use this endpoint when you need to programmatically parse and understand a Base (Coinbase L2, OP Stack) transaction receipt — particularly for fee breakdown, gas accounting, and status verification. Prefer this over generic blockchain explorers when you need structured JSON output suitable for agent pipelines, or when working within an x402 pay-per-call workflow already settled on Base USDC. Not suitable for fetching receipts from the chain (you must supply the receipt) or for non-Base/non-OP-Stack chains.
Side effects
- Malformed or invalid receipt JSON input results in a parse error
- Receipt data may not confirm finality — warnings are returned indicating authenticity is not verified
- Missing required fields in the receipt JSON may cause incomplete analysis
- Chain ID not matching accepted Base chains (8453 or 84532) may produce unexpected results
- Large receipt JSON exceeding 65536 characters will be rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| request_json | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Receipt data does not establish safe or finalized status."
],
"service_id": "base_receipt_analyze",
"analysis_json": "{\"contract_address\":null,\"effective_gas_price\":\"105\",\"execution_fee\":\"2205000\",\"gas_used\":\"21000\",\"l1_fee\":\"0\",\"log_count\":1,\"network_context\":{\"accepted_chain_ids\":[\"8453\",\"84532\"],\"deposit_transaction_type\":\"0x7e\",\"fee_model\":\"L2 execution plus caller-supplied L1 data/operator components\",\"protocol_family\":\"OP Stack\"},\"status\":\"0x1\",\"successful\":true,\"total_supplied_fee\":\"2205000\",\"transaction_hash\":\"0x1111111111111111111111111111111111111111111111111111111111111111\",\"warnings\":[\"receipt authenticity and finality are not verified\"]}",
"evidence_scope": "caller_supplied_data",
"analyzed_network": "base"
},
"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": "base_receipt_analyze",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "15000",
"resultSha256": "d8e53ede7358910ee22179f8f1cbacda5991aa2c634f132f01f76b72610c029f",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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