# Vokko USDC Transfer Receipt Verifier

> Vokko USDC Transfer Receipt Verifier is a paid API for AI agents from www.vokko.eu, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).

Verifies whether a specific USDC on-chain transaction settled to the expected recipient address and amount

## Facts

- Endpoint: GET https://www.vokko.eu/api/v1/receipts/:tx/verify?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vokko-usdc-transfer-receipt-verifier-ee9eaaa8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L3pMI6J8t-Sfc4tY6PyVF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability vokko-usdc-transfer-receipt-verifier-ee9eaaa8
```

Example prompt: Can you verify that USDC transaction 0xabc123...def settled to the right address and amount — I want to confirm the payment receipt is valid before we proceed.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call verification that a specific USDC transfer receipt matches an expected address and amount — particularly useful for agentic workflows that need to confirm payment settlement before triggering downstream actions, without running a full blockchain node or indexer.

## Known failure modes

- Transaction hash not found on-chain — returns not found or unconfirmed status
- Transaction exists but settled to a different address than expected — returns mismatch
- Amount differs from what was expected — returns amount mismatch
- Transaction still pending — verification may return unconfirmed
- Invalid tx hash format — returns bad request error
- Payment of $0.001 USDC required per call — unpaid requests rejected

## How this service works

Did this USDC transfer settle to the expected address and amount? $0.001.

## Output

Returns a verification result indicating whether the specified USDC transaction hash settled to the expected recipient address and amount, including evidence of settlement status from on-chain data.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vokko-usdc-transfer-receipt-verifier-ee9eaaa8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.vokko.eu](https://www.zero.xyz/host/www.vokko.eu/llms.txt)