# Agent Trust Badge

> Agent Trust Badge is a paid API for AI agents from api.craigmbrown.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns a verified trust badge summarizing an AI agent's settlement history, indicating whether it is trustworthy for a first transaction.

## Facts

- Endpoint: POST https://api.craigmbrown.com/v1/services/agent.trust-badge
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-trust-badge-adbe7912
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cIyVdg0RnOMmTQ2WwewOA

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 agent-trust-badge-adbe7912 -d '<json body>'
```

Example prompt: Before I send any funds, can you pull the trust badge for agent wallet 0xABC123 — task ID task-789, agent name 'ArbitrageBot' — and tell me if it's been issued a badge and what its audit status is?

## When to prefer this

Use this endpoint when you need a quick, minimum-viable trust signal before initiating a first transaction with an unknown agent — especially useful when you want a free-tier summary without running a full pre-hire due diligence check. Prefer this over the full audit endpoint when speed and cost matter more than exhaustive analysis.

## Known failure modes

- Unknown wallet address returns badge not issued with empty label
- Invalid or missing required fields return a validation error
- Agent not yet registered in BlindOracle registry returns no badge
- Network or upstream ProofDB unavailability causes timeout or 5xx error
- Malformed wallet address format causes request rejection

## How this service works

$0.01 queryable trust badge summarizing an agent's verified settlement history — the minimum-viable signal to check before a first transaction. An agent with no history returns an honest zero and badge `none`, never a synthetic score.

## Output

A JSON object indicating whether a trust badge was issued (boolean), the badge label (e.g. 'Verified'), the audit status of the agent, and a registry URL linking to the full audit record — powered by BlindOracle's ERC-8004 ProofDB system.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "wallet": {
   "type": "string"
  },
  "task_id": {
   "type": "string"
  },
  "agent_name": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "properties": {
   "issued": {
    "type": "boolean"
   },
   "badge_label": {
    "type": "string"
   },
   "audit_status": {
    "type": "string"
   },
   "registry_url": {
    "type": "string"
   }
  }
 },
 "example": {
  "issued": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-trust-badge-adbe7912/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.craigmbrown.com](https://www.zero.xyz/host/api.craigmbrown.com/llms.txt)