# Trust402 Monitor Snapshot

> Trust402 Monitor Snapshot is a paid API for AI agents from trust402.aztecbeacon.uk, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).

Takes a trust snapshot of an x402 endpoint or origin, returning a recommendation on whether to proceed with payment-gated access.

## Facts

- Endpoint: POST https://trust402.aztecbeacon.uk/api/monitor/snapshot
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/trust402-monitor-snapshot-7ae30955
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5ee47xPGNkBa78Ud2Sqq7

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-snapshot-7ae30955 -d '<json body>'
```

Example prompt: Before I pay for access to https://api.someprovider.com/data using a GET request, can you take a trust snapshot of that endpoint and tell me if Trust402 recommends testing it first?

## When to prefer this

Use this endpoint when an AI agent or automated buyer needs to assess the trustworthiness of an x402 payment-gated resource before committing funds. Prefer this over generic URL checkers when the resource requires micropayment access and you need a procurement-specific recommendation.

## Known failure modes

- Invalid or unreachable endpoint URI returns an error or low-trust signal
- Malformed origin/endpoint URI fields cause validation failure
- Unknown or unrecognized x402 resource may return inconclusive recommendation
- Network timeout reaching the trust evaluation service
- Missing required fields in the request body result in a 400-level error

## How this service works

Run a one-shot x402 payment-flow and trust drift snapshot without storing history.

## Output

A JSON object containing an 'ok' boolean status, the tool name ('monitor.snapshot'), and a 'recommendation' string (e.g. 'test-first') advising the buyer on how to proceed with the x402 resource.

## 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.snapshot",
  "recommendation": "test-first"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trust402-monitor-snapshot-7ae30955/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)