# x402 Trust Guard - Complete Trust Intelligence

> x402 Trust Guard - Complete Trust Intelligence is a paid API for AI agents from nico222222222-x402-trust-guard.hf.space, paid per call via x402, $0.08/call, status unknown (last checked 2026-10-30).

Returns a complete trust validation dataset for x402 services (100+ services graded A-F with purchase proofs) and optionally performs a fresh live verification of a specific x402 service URL including micro-purchase and LLM grading.

## Facts

- Endpoint: POST https://nico222222222-x402-trust-guard.hf.space/complete?utm_source=zero.xyz
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-trust-guard-complete-trust-intelligence-e2412e0f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GmKEyggjCNSMOgAA-0ltG

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-trust-guard-complete-trust-intelligence-e2412e0f -d '<json body>'
```

Example prompt: Can you check whether https://some-api.hf.space is a trustworthy x402 service? I want to see its trust grade, purchase test results, and on-chain proof — and also pull the full dataset of all graded x402 services.

## When to prefer this

Use this endpoint when you need to assess the trustworthiness of x402-protocol services before integrating or paying them — especially when you want real purchase-tested evidence and on-chain proof rather than just metadata claims. It is the best choice when you want both a broad dataset of graded services and an on-demand fresh check of a specific endpoint in a single call.

## Known failure modes

- Target x402 service is unreachable during fresh verification probe
- Micro-purchase fails due to insufficient funds or payment protocol error
- Invalid or non-x402 resource URL provided returns validation error
- Service times out during live purchase test of slow endpoint
- Dataset may be partially stale if recently added services haven't been re-tested

## How this service works

All-in-one trust intelligence for x402 services: the complete validation dataset (100+ services graded A-F with real purchase tests, on-chain proof tx hashes, response quality and a how-to-buy guide) PLUS, if you send a 'resource' URL, a fresh verification of that service (passive probe + real micro-purchase + LLM grade) included in the same response.

## Output

A JSON response containing: (1) the complete validation dataset of 100+ x402 services each with an A-F trust grade, real purchase test outcomes, on-chain proof transaction hashes, response quality scores, and a how-to-buy guide; and (2) if a 'resource' URL was provided, a fresh live verification result for that specific service including passive probe data, a real micro-purchase result, and an LLM-generated trust grade.

## Request schema (JSON Schema)

```json
{
 "anyOf": [
  {
   "type": "object",
   "title": "CompleteRequest",
   "properties": {
    "method": {
     "type": "string",
     "title": "Method",
     "default": "POST"
    },
    "payload": {
     "anyOf": [
      {
       "type": "object",
       "additionalProperties": true
      },
      {
       "type": "array",
       "items": {}
      },
      {
       "type": "null"
      }
     ],
     "title": "Payload"
    },
    "resource": {
     "anyOf": [
      {
       "type": "string"
      },
      {
       "type": "null"
      }
     ],
     "title": "Resource"
    },
    "query_params": {
     "anyOf": [
      {
       "type": "object",
       "additionalProperties": true
      },
      {
       "type": "null"
      }
     ],
     "title": "Query Params"
    }
   }
  },
  {
   "type": "null"
  }
 ],
 "title": "Req"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-trust-guard-complete-trust-intelligence-e2412e0f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nico222222222-x402-trust-guard.hf.space](https://www.zero.xyz/host/nico222222222-x402-trust-guard.hf.space/llms.txt)