# x402.dexter.cash Payment Verification Test

> x402.dexter.cash Payment Verification Test is a paid API for AI agents from x402.dexter.cash, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Verifies that an x402 payment flow completes end-to-end and returns a confirmation with timestamp.

## Facts

- Endpoint: POST https://x402.dexter.cash/api/v2-test
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-dexter-cash-a2410706
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qEEQJYwpf2WS_e3GS5IuK

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 x402-dexter-cash-a2410706 -d '<json body>'
```

Example prompt: Run a test verification of the x402 payment flow for a 1.00 USDC transaction described as 'Test transaction verification' with test mode enabled, and confirm the payment was verified and settled by the middleware.

## When to prefer this

Use this endpoint when you need to verify that an x402 payment integration is functioning correctly end-to-end, particularly for testing the x402 v2 protocol flow on dexter.cash infrastructure. Prefer this over generic HTTP health checks when the specific goal is confirming that payment middleware intercepts and settles a USDC transaction before the handler responds.

## Known failure modes

- Payment not verified — middleware did not process the payment, returns ok: false
- Invalid input schema — missing required fields like amount, currency, testMode, or description causes a 400-level error
- USDC payment insufficient or not received — x402 middleware rejects the call before reaching the handler
- Service unavailable — endpoint unreachable, returns 5xx error
- Currency mismatch — non-USDC currency submitted may result in rejection

## How this service works

Verifies x402 payment flow and returns a confirmation response.

## Output

Returns a JSON object with an 'ok' boolean indicating success, a human-readable 'message' confirming that the x402 v2 test route was reached and payment was verified and settled by middleware, and an ISO 8601 'timestamp' of when the verification occurred.

## Example request

```json
{
 "amount": "1.00",
 "currency": "USDC",
 "testMode": true,
 "description": "Test transaction verification"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "amount",
  "currency",
  "testMode",
  "description"
 ],
 "properties": {
  "amount": {
   "type": "string"
  },
  "currency": {
   "type": "string"
  },
  "testMode": {
   "type": "boolean"
  },
  "description": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "ok",
  "message",
  "timestamp"
 ],
 "properties": {
  "ok": {
   "type": "boolean"
  },
  "message": {
   "type": "string"
  },
  "timestamp": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-dexter-cash-a2410706/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.dexter.cash](https://www.zero.xyz/host/x402.dexter.cash/llms.txt)