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HALOWERK x402werk — Channel Voucher Audit
x402
HALOWERK x402werk — Channel Voucher Audit is a paid API for AI agents from x402.netzhandwerker.de, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-15).
Audits a batch of payment channel vouchers, verifying signatures, claim status, and on-chain state for cryptographic payment channels on Base Mainnet.
Price / call$0.006
Success—
StatusUnknown
How this service works
HALOWERK x402werk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
Returns an audit report for each submitted voucher indicating whether the signature is cryptographically valid, whether the voucher has been claimed, the on-chain channel deposit and state if readable, and any expiry or integrity issues found across the batch.
Example use cases
Pre-redemption voucher validity check
“Before I redeem these 5 payment channel vouchers, can you audit them all against the Base Mainnet contract at 0xAbCd1234... to confirm the signatures are valid and none have already been claimed? The voucher IDs are 'v10' through 'v14', each signed by 0xSender123....”
Dispute resolution evidence audit
“I have 10 vouchers from a payment channel dispute — channel ID 0xdeadbeef1234 on eip155:8453 — and I need to know which ones carry valid EIP-712 signatures and which are fraudulent or expired. Can you run a full audit and flag any issues?”
Off-chain channel balance reconciliation
“We deposited 5000000 USDC units into our payment channel but can't read the on-chain state right now — use deposited amount '5000000' to audit these vouchers and tell me the net claimable balance based on amounts '2000000', '1500000', and '800000' from vouchers v-alpha, v-beta, v-gamma.”
Technical details
Endpoint
POSThttps://x402.netzhandwerker.de/channel/auditWhen to prefer
Choose this endpoint when you need to batch-verify cryptographic payment channel vouchers — especially EIP-712 signed vouchers on Base Mainnet — before redemption, during dispute resolution, or for reconciliation. It combines signature validation, claim-status checking, and optional on-chain state reading in a single call, making it ideal for payment channel operators, relayers, or agents managing USDC micropayment flows via the x402 protocol.
Side effects
- Invalid or missing required voucher fields (id, amount) return validation errors
- Malformed signature or 0x-prefix missing causes signature verification failure
- On-chain state unreadable without valid CAIP-2 chain and contract address — falls back to provided deposited amount
- Exceeding maxItems:200 per batch returns a schema validation error
- Invalid EIP-712 typed_data structure causes typed data verification to fail
- Payment (x402 USDC) not included or insufficient returns HTTP 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Optional chain, needed only to read the on-chain state, as CAIP-2 such as eip155:8453. |
| vouchers | array | The vouchers to audit. |
| deposited | string | Optional deposit in the smallest unit, used when the contract cannot be read. |
| channel_id | string | Optional channel identifier as bytes32. |
| channel_contract | string | Optional channel contract address. |
Tags
x402
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