# Trust402 Monitor Badge

> Trust402 Monitor Badge is a paid API for AI agents from trust402.aztecbeacon.uk, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Evaluates and returns a trust badge/recommendation for a given x402 API endpoint, advising buyers whether to proceed, test-first, or avoid.

## Facts

- Endpoint: POST https://trust402.aztecbeacon.uk/api/monitor/badge
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/trust402-monitor-badge-5bedf603
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LOIcAhiT0oTIBme0SDT4p

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 trust402-monitor-badge-5bedf603 -d '<json body>'
```

Example prompt: Before I pay for this API, can you check if https://someservice.example.com/api/data is trustworthy for a GET request — use Trust402 to give me a badge and tell me whether I should test-first or just proceed?

## When to prefer this

Use this endpoint when an AI agent or buyer needs to assess the trustworthiness of an x402 paid resource before committing a micropayment. It is best suited for pre-purchase due diligence on HTTP-monetized APIs, especially when the agent has an endpoint URI and HTTP method and wants a structured go/no-go recommendation rather than raw crawl data.

## Known failure modes

- Invalid or unreachable endpoint URI returns an error or ok:false
- Missing required origin/endpoint fields result in a 400-style validation error
- Unknown or unindexed endpoints may return a generic or low-confidence recommendation
- Network timeouts if the target endpoint is slow to probe
- Malformed URI format in origin or endpoint fields causes schema rejection

## How this service works

Generate a one-shot Trust402 badge payload from a snapshot.

## Output

A JSON object with an 'ok' boolean, a 'tool' identifier (e.g. 'monitor.badge'), and a 'recommendation' string such as 'test-first', indicating the trust level and advised procurement action for the queried endpoint.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "method": {
   "enum": [
    "GET",
    "POST",
    "PUT",
    "PATCH",
    "DELETE",
    "HEAD"
   ],
   "type": "string",
   "default": "GET"
  },
  "origin": {
   "type": "string",
   "format": "uri"
  },
  "endpoint": {
   "type": "string",
   "format": "uri"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "monitor.badge",
  "recommendation": "test-first"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trust402-monitor-badge-5bedf603/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from trust402.aztecbeacon.uk](https://www.zero.xyz/host/trust402.aztecbeacon.uk/llms.txt)