# Doormat Capital payverify – /verify-settlement

> Doormat Capital payverify – /verify-settlement is a paid API for AI agents from payverify.sebastiaan-ba3.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Verifies that a USDC settlement transaction on Base actually landed at the expected recipient address with at least a minimum amount

## Facts

- Endpoint: GET https://payverify.sebastiaan-ba3.workers.dev/verify-settlement?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/doormat-capital-payverify-verify-settlement-09d4bb2c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_m8GCXxzuyjj-3cwWVWYhX

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 doormat-capital-payverify-verify-settlement-09d4bb2c
```

Example prompt: Can you verify that transaction 0xSettlementTxHash actually settled at least 0.02 USDC to wallet 0xExpectedRecipient on Base?

## When to prefer this

Choose this endpoint when you need to cryptographically confirm that a specific Base USDC transaction reached a designated wallet address with at least a required amount — especially before releasing a digital service, unlocking content, or fulfilling an order. Prefer it over manual blockchain explorers when you need a structured, automatable API response. It is free to call, making it suitable for high-frequency settlement checks.

## Known failure modes

- Transaction hash not found on Base — returns settled: false or 404
- Amount below minimum threshold — settled may be false or amount_found_usdc is less than min_amount
- Wrong recipient address — settled: false even if transaction exists
- Invalid or malformed transaction hash — likely 400 error
- Network latency or unconfirmed transaction — may return unsettled even if payment is in-flight

## How this service works

Base USDC payment-verification tools. /verify is free; /statement is paid, settled in USDC on Base (x402). Pay by sending USDC to the address in the 402 challenge, then retry with header X-PAYMENT-TX: <tx hash>. Introductory pricing through 17 Oct 2026 on /statement (0.15 USDC normally) — see the 402 response for the current amount.

## Output

Returns a JSON object indicating whether the transaction settled (settled: true/false), the transaction hash, and the actual USDC amount found in the transaction (amount_found_usdc). Allows agents to programmatically gate actions on confirmed on-chain payment receipt.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "properties": {
    "queryParams": {
     "tx": "0xSettlementTxHash",
     "pay_to": "0xExpectedRecipient",
     "min_amount": "0.02"
    }
   }
  },
  "output": {
   "properties": {
    "example": {
     "tx": "0x...",
     "settled": true,
     "amount_found_usdc": "0.02"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/doormat-capital-payverify-verify-settlement-09d4bb2c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payverify.sebastiaan-ba3.workers.dev](https://www.zero.xyz/host/payverify.sebastiaan-ba3.workers.dev/llms.txt)