# x402 Validation Test Endpoint

> x402 Validation Test Endpoint is a paid API for AI agents from x402endpoint-924155002144.us-west2.run.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Returns a validation response to confirm the x402 payment-gated HTTP flow is working correctly

## Facts

- Endpoint: GET https://x402endpoint-924155002144.us-west2.run.app/validation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-validation-test-endpoint-a3bf563b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vh5teFakgy0vIbdkgE7En

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-validation-test-endpoint-a3bf563b
```

Example prompt: Can you hit the x402 validation endpoint to confirm that my payment flow is working — use a GET request and tell me if it returns a valid response after paying the $0.01 USDC fee?

## When to prefer this

Use this endpoint when you need to verify that an x402 micropayment flow is correctly configured and that a payment-gated GET endpoint will respond after a $0.01 USDC payment. Ideal for smoke testing, integration checks, or debugging x402-based agent payment pipelines before hitting production endpoints.

## Known failure modes

- Payment not included or insufficient USDC — returns 402 Payment Required
- Invalid HTTP method used (only GET, HEAD, DELETE accepted) — returns 405 Method Not Allowed
- Endpoint temporarily unavailable — returns 503
- Malformed request schema — returns 400 Bad Request

## How this service works

Current path for validation test

## Output

A validation response confirming that the x402 payment-gated request succeeded. Indicates the HTTP flow, payment processing, and endpoint routing are functioning as expected.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-validation-test-endpoint-a3bf563b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402endpoint-924155002144.us-west2.run.app](https://www.zero.xyz/host/x402endpoint-924155002144.us-west2.run.app/llms.txt)