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Base Transaction Receipt Consistency Checker
x402
Base Transaction Receipt Consistency Checker is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Validates that fields in a Base blockchain transaction receipt match the corresponding transaction data, detecting inconsistencies across key fields like hash, from, to, type, and chain ID.
Price / call$0.01
Success—
StatusUnknown
How this service works
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Output
Returns a detailed JSON analysis with per-field match results (hash, transaction_hash, from, to, type, chain_id), an overall 'consistent' boolean, network context including accepted chain IDs and OP Stack fee model metadata, plus any warnings about the limits of caller-supplied data as proof of authenticity.
Example use cases
Fraud check on payment receipt
“I just received a payment receipt for a Base USDC transfer and I want to make sure it hasn't been tampered with — can you verify that the receipt fields like hash, from, to, and chain ID are all consistent with the original transaction data I have here?”
Audit trail for DeFi transaction
“We're auditing a DeFi protocol interaction on Base mainnet and need to confirm the transaction receipt is internally consistent — please cross-check the provided transaction and receipt JSON and flag any field mismatches.”
Agent wallet payment verification
“My AI agent just made a payment on the Base network and got back a receipt — before I consider it settled, can you run a consistency check between the receipt and the transaction to confirm the hash, sender, recipient, and chain ID all line up?”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/base_transaction_receipt_consistency/invokeWhen to prefer
Choose this endpoint when you need a structured, field-by-field consistency audit of a Base blockchain transaction and its receipt — particularly useful for agent payment workflows, fraud detection, or audit pipelines on the Base/OP Stack network. It does not fetch on-chain data itself but validates that caller-supplied transaction and receipt objects agree with each other.
Side effects
- Malformed or invalid JSON input results in a parsing error
- Missing required transaction or receipt fields cause incomplete field checks
- Inconsistent fields return consistent=false with specific mismatched field details
- Caller-supplied data cannot prove on-chain authenticity — only internal consistency is verified
- Unsupported chain IDs outside Base mainnet (8453) or testnet (84532) may produce unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| request_json | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Consistent supplied records are not proof of authenticity."
],
"service_id": "base_transaction_receipt_consistency",
"analysis_json": "{\"checks\":[{\"field\":\"hash\",\"match\":true,\"receipt\":\"0x1111111111111111111111111111111111111111111111111111111111111111\",\"transaction\":\"0x1111111111111111111111111111111111111111111111111111111111111111\"},{\"field\":\"transaction_hash\",\"match\":true,\"receipt\":\"0x1111111111111111111111111111111111111111111111111111111111111111\",\"transaction\":\"0x1111111111111111111111111111111111111111111111111111111111111111\"},{\"field\":\"from\",\"match\":true,\"receipt\":\"0x0000000000000000000000000000000000000001\",\"transaction\":\"0x0000000000000000000000000000000000000001\"},{\"field\":\"to\",\"match\":true,\"receipt\":\"0x0000000000000000000000000000000000000002\",\"transaction\":\"0x0000000000000000000000000000000000000002\"},{\"field\":\"type\",\"match\":true,\"receipt\":\"0x2\",\"transaction\":\"0x2\"},{\"field\":\"chain_id\",\"match\":true,\"receipt\":\"8453\",\"transaction\":\"8453\"}],\"consistent\":true,\"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\"}}",
"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_transaction_receipt_consistency",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "10000",
"resultSha256": "dc81fe82f65d08177c9f1914dbcad5927f5f39e67ca33d726928e8e631db9fc9",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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