# Aegis Trust Check — x402 Service Trust Score Lookup

> Aegis Trust Check — x402 Service Trust Score Lookup is a paid API for AI agents from aegis.borisinc.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns a trust score and safety recommendation for a given x402 agent-payable service URL, backed by verified real-purchase history.

## Facts

- Endpoint: GET https://aegis.borisinc.com/trust
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aegis-trust-check-x402-service-trust-score-lookup-b06cf842
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c7DZHzs9YPr9ct3UKbp1k

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 aegis-trust-check-x402-service-trust-score-lookup-b06cf842
```

Example prompt: Before paying, check the Aegis trust score for https://api.example.com/x402 — is it safe to transact with?

## When to prefer this

Use this endpoint when an AI agent needs to verify the trustworthiness of an x402-payable service URL before committing a micropayment, especially for unknown or newly discovered APIs. Prefer Aegis over general reputation checks when you specifically need trust scores grounded in verified real-purchase history within the x402 ecosystem.

## Known failure modes

- URL not found in registry — returns low/unknown trust score or no result
- Malformed or non-x402 URL input — may return error or null result
- Service not yet indexed — new or obscure endpoints may lack purchase history and return unrated status
- Network timeout or Aegis service unavailability — HTTP error response

## How this service works

Search 2,400+ x402 services ranked by delivery-verified trust. Free discovery, paid trust checks, payment routing with failover. We buy from sellers to prove they deliver.

## Output

A JSON object containing the queried service URL, its trust tier (e.g. 'trusted'), a numeric trust score (0–100), and a plain-English recommendation (e.g. 'safe to transact') indicating whether an agent should proceed with payment.

## 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",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "x402 service URL to trust-check"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://api.example.com/x402",
  "tier": "trusted",
  "trust_score": 82,
  "recommendation": "safe to transact"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aegis-trust-check-x402-service-trust-score-lookup-b06cf842/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aegis.borisinc.com](https://www.zero.xyz/host/aegis.borisinc.com/llms.txt)