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Coins Agent Check — Base USDC Receipt Verification
x402
Coins Agent Check — Base USDC Receipt Verification is a paid API for AI agents from coins.zhidun.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-27).
Verifies a Base chain (chainId 8453) USDC transfer by transaction hash, confirming recipient, payer, and minimum received amount, returning a signed receipt report.
Price / call$0.02
Success—
StatusUnknown
How this service works
USDC receipt evidence for x402 merchants and wallet agents. Try a free public-chain receipt example, then verify your own Base USDC transfers for 0.02 USDC per report.
Output
A JSON object containing a 'kind' field set to 'base_usdc_receipt_verification' and a 'reportId' which is a private hash uniquely identifying the verification report. This serves as tamper-evident proof that the specified USDC transaction was verified on Base chain according to the supplied parameters.
Example use cases
Confirm customer USDC payment received
“Check whether the Base USDC transaction 0x4e8b2a1f...d903 was paid by 0x1234...abcd to our wallet 0x5678...ef01, and that we received at least 2000000 raw units — I need to confirm the order before shipping. I accept the terms.”
Agent-to-agent payment receipt audit
“Verify that transaction 0xabc1...9f32 on Base chain 8453 successfully transferred USDC from agent wallet 0xdeadbeef...1111 to 0xcafe...2222 with a minimum of 20000 raw USDC — the customer is in the US. Terms accepted.”
Dispute resolution payment proof
“I need evidence that USDC payment 0x99fa...8b12 on Base was sent by 0xfeed...4321 to recipient 0xbeef...6789, with at least 500000 raw units received, so I can resolve a payment dispute. Customer country is GB and I accept your terms.”
Technical details
Endpoint
POSThttps://coins.zhidun.ai/api/v1/payments/usdc-receipt?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need cryptographic, on-chain confirmation that a specific USDC transaction on Base mainnet was completed with a particular payer, recipient, and minimum amount. It is ideal for agent-to-agent payment verification, order fulfilment gating, or dispute resolution where a signed, auditable receipt report is needed. Prefer this over generic blockchain explorers when you need a structured, machine-readable verification response with a report ID for record-keeping.
Side effects
- Invalid or malformed transaction hash returns a validation error
- Transaction not found on Base chain (chainId 8453) returns a not-found error
- Recipient address does not match the on-chain transfer target returns a mismatch error
- Minimum received amount not met returns a failed verification
- termsAccepted not set to true causes request rejection
- Payment for the report (0.02 USDC via x402) fails, blocking report delivery
- Unsupported chainId (non-8453) causes rejection
- Rate limiting or network errors from Base RPC provider
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| txHash | string | |
| chainId | number | |
| recipient | string | |
| expectedPayer | string | |
| termsAccepted | boolean | |
| minimumReceivedRaw | string | |
| customerCountryCode | string |
Output
Schema · Response
{
"type": "json",
"example": {
"kind": "base_usdc_receipt_verification",
"reportId": "private-request-hash"
}
}Tags
x402
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