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Cairnworks Verify — Transaction Receipt Verifier
x402
Cairnworks Verify — Transaction Receipt Verifier is a paid API for AI agents from cairnworks-verify.run402.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).
Verifies a Base or BSC blockchain transaction receipt, returning status, block info, decoded ERC-20 transfers, and a SHA-256 evidence digest for agent payouts or claims.
Price / call$0.01
Success—
StatusUnknown
How this service works
Verify a Base/BSC transaction receipt for a payout or claim: status, block, sender, gas, decoded ERC-20 Transfer logs and a sha256 evidence digest. 0.01 USDC via x402 on Base. POST only. Free sample: /samples
Output
A JSON object containing: verified (boolean), verdict (e.g. 'success'), status_hex (e.g. '0x1'), block_number, chain, chain_id, from address, gas_used, an array of decoded erc20_transfers (each with to, from, token contract, value_raw, value_human), and a SHA-256 evidence_sha256 digest of the receipt.
Example use cases
Confirm agent payout receipt on Base
“An AI agent just claimed it paid out USDC to my wallet on Base mainnet — can you verify transaction hash 0xabc123...def456 and tell me the status, block number, and how much ERC-20 was actually transferred?”
Audit BSC claim before releasing funds
“Before I release the next batch of rewards, verify this BSC transaction hash 0xdef789...abc123 to make sure the previous payout really went through and show me the decoded token transfer details.”
Generate tamper-proof payment evidence
“I need a SHA-256 evidence digest proving that transaction 0x1234...5678 on Base Sepolia testnet succeeded — can you run the verification and give me the evidence hash I can store for our records?”
Technical details
Endpoint
POSThttps://cairnworks-verify.run402.com/verify?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to cryptographically confirm that a specific on-chain transaction (especially a USDC or ERC-20 payout) succeeded on Base mainnet, Base Sepolia testnet, or BSC — particularly when you need decoded transfer logs and a tamper-evident SHA-256 evidence digest rather than just a raw RPC call. Prefer this over generic blockchain explorers when you need a structured, agent-ready JSON response with a pre-computed evidence hash for audit trails.
Side effects
- Invalid or malformed tx hash (not matching 0x + 64 hex chars) returns validation error
- Unsupported chain value returns enum validation error
- Transaction not found on specified chain returns unverified or error response
- Network timeout or RPC failure may cause slow or failed response
- Payment failure (x402 USDC not provided) blocks access to the endpoint
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | |
| txHash | string |
Output
Schema · Response
{
"type": "json",
"example": {
"from": "0x8186bdC89E5893393136265f88bA3719BF453527",
"chain": "base",
"verdict": "success",
"chain_id": 8453,
"gas_used": 86230,
"verified": true,
"status_hex": "0x1",
"block_number": 52779560,
"erc20_transfers": [
{
"to": "0xAd62f03C7514bb8c51f1eA70C2b75C37404695c8",
"from": "0x8186bdC89E5893393136265f88bA3719BF453527",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"value_raw": "5000",
"value_human": 0.005
}
],
"evidence_sha256": "…"
}
}Tags
x402
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