# x402 Trust Layer Research Brief

> x402 Trust Layer Research Brief is a paid API for AI agents from x402trustlayer.xyz, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-10).

Returns a paid research brief summarizing trust, compliance, and mandate status for a given HTTP request context via x402 micropayment settlement.

## Facts

- Endpoint: POST https://x402trustlayer.xyz/api/research/brief?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-trust-layer-research-brief-84ad62e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_m8ymxKePl_PqzY3_uJ28z

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-layer-research-brief-84ad62e6 -d '<json body>'
```

Example prompt: Can you pull a trust research brief for a GET request on the x402 Trust Layer to check whether it's allowed and get a compliance summary?

## When to prefer this

Use this endpoint when you need a concise, post-payment trust research brief for a specific HTTP request context, particularly to verify mandate compliance, certified seller status, or KYM checks in the x402 ecosystem. Prefer this over raw compliance or mandate endpoints when you want a unified summary across guard, escrow, and orchestration layers in a single call.

## Known failure modes

- Payment not settled — request blocked with 402 response
- Invalid or unsupported HTTP method (only GET, HEAD, DELETE allowed)
- Missing required 'type' or 'method' fields in input — validation error
- Request not allowed under current mandate or compliance rules — allowed: false returned
- Network or orchestration failure — ok: false with error summary

## How this service works

68 paid x402 trust infrastructure APIs: guard, semantic escrow, mandate diff, certified seller network, KYM, mandates, compliance, disputes, and orchestration.

## Output

Returns a JSON object with an 'ok' boolean indicating call success, an 'allowed' boolean indicating whether the request passed trust/mandate checks, and a 'summary' string describing the trust and compliance outcome after x402 micropayment settlement.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "ok",
      "allowed",
      "summary"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "allowed": {
       "type": "boolean"
      },
      "summary": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "allowed": true,
  "summary": "Paid response after x402 settlement"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-trust-layer-research-brief-84ad62e6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402trustlayer.xyz](https://www.zero.xyz/host/x402trustlayer.xyz/llms.txt)