# x402 Trust Layer – Protocol Reasoning Disclose

> x402 Trust Layer – Protocol Reasoning Disclose is a paid API for AI agents from x402trustlayer.xyz, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-10).

Performs a paid protocol reasoning disclosure check, returning whether an action is allowed along with a natural-language summary of the reasoning.

## Facts

- Endpoint: POST https://x402trustlayer.xyz/api/protocol/reasoning/disclose?utm_source=zero.xyz
- Price: $0.04/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-protocol-reasoning-disclose-a5cc0bce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p5KZU5n2_Jy01j2H--j5B

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-protocol-reasoning-disclose-a5cc0bce -d '<json body>'
```

Example prompt: Check if this POST action with a JSON body is allowed under the x402 trust protocol and give me a plain-English summary of the reasoning behind the decision.

## When to prefer this

Choose this endpoint when you need a paid, cryptographically-backed protocol reasoning disclosure — specifically to determine whether an action is allowed under the x402 trust layer and to receive a natural-language justification. Prefer this over generic compliance checks when operating within the x402 payment protocol ecosystem and when auditability of the reasoning is required.

## Known failure modes

- Missing required 'input' object returns 400 validation error
- Invalid 'method' enum value (not POST/PUT/PATCH) causes schema rejection
- Invalid 'bodyType' enum value causes schema rejection
- x402 payment not settled results in 402 Payment Required response
- Malformed body properties cause processing failure
- Service unavailability returns 5xx error

## 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 three fields: 'ok' (boolean indicating request success), 'allowed' (boolean indicating whether the action is permitted), and 'summary' (a plain-English string explaining the reasoning behind the trust layer's decision).

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "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-protocol-reasoning-disclose-a5cc0bce/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)