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Dark Loom Revenue Ledger — Base USDC Settlement Audit
x402
Dark Loom Revenue Ledger — Base USDC Settlement Audit is a paid API for AI agents from 169.58.81.212, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Verifies and audits USDC settlement transactions on the Base blockchain by transaction hash, confirming transfer amounts, recipients, and confirmation status
Price / call$0.003
Success—
StatusUnknown
How this service works
Deterministic verification of Base USDC settlement transactions
Output
Returns a JSON object with: overall verification status (ok), chain identifier, transaction details (hash, status, block number, confirmations), a list of USDC transfers found, a proof object with explorer URL and verification timestamp, expectation matching results (whether the expected recipient and amount were found), and the canonical USDC contract address on Base.
Example use cases
Confirm payment before order fulfillment
“Before I ship the order, verify that Base transaction 0xabc123...def456 successfully transferred 10000000 atomic USDC to my wallet 0xMyWalletAddress — I need to confirm the payment actually settled.”
Audit settlement record for reconciliation
“I need to audit transaction 0xdeadbeef...cafebabe on Base — check its confirmation count, the USDC amount transferred, and who received it, so I can reconcile my revenue ledger.”
Validate x402 micropayment receipt
“A client claims they paid via x402 — can you verify that Base transaction 0x999...aaa delivered the correct USDC amount to 0xMyServiceAddress and tell me the block it was confirmed in?”
Technical details
Endpoint
POSThttps://169.58.81.212/v1/x402/settlement-auditWhen to prefer
Choose this endpoint when you need deterministic, on-chain proof that a specific USDC settlement occurred on Base — especially for x402 payment verification, revenue reconciliation, or releasing access/goods after payment confirmation. Prefer this over general block explorers when you need structured JSON output with expectation matching (amount + recipient validation) that an agent can act on programmatically.
Side effects
- Invalid txHash format (not a valid 0x-prefixed 64-char hex) returns validation error
- Transaction not found on Base returns an error or ok:false
- Transaction pending/unconfirmed may return low confirmation count
- expectedAmount or expectedRecipient mismatch returns expectations.matched:false (not an error, but requires agent to check)
- Network or RPC timeout may cause temporary failures
- Providing a non-Base chain transaction hash will fail or return unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| txHash | string | Base transaction hash |
| expectedAmount | string | Optional USDC amount in 6-decimal atomic units |
| expectedRecipient | string | Optional expected USDC recipient |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"chain": "base",
"proof": {
"explorer": "https://basescan.org/tx/0x...",
"verifiedAt": "2026-01-01T00:00:00.000Z"
},
"transfers": [],
"transaction": {
"hash": "0x...",
"status": "success",
"blockNumber": 1,
"confirmations": 1
},
"expectations": {
"matched": false,
"recipient": null,
"amountAtomic": null
},
"canonicalUsdc": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
}Tags
x402
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