# Free Asset Radar x402 Endpoint Audit

> Free Asset Radar x402 Endpoint Audit is a paid API for AI agents from free-asset-radar-x402.besenok2018.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-30).

Audits an x402-compliant API endpoint to assess its protocol conformance, payment acceptance, and quality score

## Facts

- Endpoint: GET https://free-asset-radar-x402.besenok2018.workers.dev/api/x402/x402-endpoint-audit?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/free-asset-radar-x402-endpoint-audit-e1aeaecd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lN9uTTvSDl47GhlWbIlVd

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 free-asset-radar-x402-endpoint-audit-e1aeaecd
```

Example prompt: Can you run an x402 endpoint audit on my payment API and tell me its conformance score, whether it's bazaar-listed, and any findings I should fix?

## When to prefer this

Choose this endpoint when you need to programmatically verify that an x402-compliant API endpoint correctly implements the x402 payment protocol, especially before listing on bazaar, debugging agent payment failures, or performing automated compliance checks across a fleet of payment endpoints. Prefer this over manual inspection or generic HTTP probing tools when you need a structured score, bazaar eligibility flag, and itemized findings specific to the x402 protocol.

## Known failure modes

- Invalid or unreachable endpoint URL returns an error or empty findings
- Endpoint does not implement x402 at all, resulting in a low score and non-402 status
- Malformed input schema fields may cause unexpected audit behavior
- Network timeouts on edge-hosted target endpoints may yield incomplete results
- Endpoints with non-standard x402 implementations may score lower than expected

## How this service works

Stable edge-hosted x402 utilities for autonomous agents.

## Output

Returns a JSON object with a numeric conformance score (0-100), a boolean bazaar listing status, the HTTP status returned by the endpoint, the number of accepted payment methods, an array of audit findings/issues, and the x402 protocol version detected.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "score": 90,
  "bazaar": true,
  "status": 402,
  "accepts": 2,
  "findings": [],
  "x402Version": 2
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/free-asset-radar-x402-endpoint-audit-e1aeaecd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from free-asset-radar-x402.besenok2018.workers.dev](https://www.zero.xyz/host/free-asset-radar-x402.besenok2018.workers.dev/llms.txt)