# AgentVerify Trust Score Lookup

> AgentVerify Trust Score Lookup is a paid API for AI agents from agentverify.t-horizon.co.za, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).

Returns a trust score, confidence level, and flags for a given agent identified by its stable agent ID or DID key.

## Facts

- Endpoint: GET https://agentverify.t-horizon.co.za/v1/trust?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentverify-trust-score-lookup-6fc227e0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ewRPWO-1GAkYSQmAfEF1h

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 agentverify-trust-score-lookup-6fc227e0
```

Example prompt: What's the AgentVerify trust score for agent av:0123456789abcdef0123456789abcdef — I want to know its level, confidence, and any flags before I proceed.

## When to prefer this

Choose this endpoint when you need a quick, single-agent trust score lookup before engaging in a transaction, delegation, or collaboration with an autonomous agent. Prefer it over manual identity checks when you need a structured confidence level and flag-based risk signal. It is especially useful in agentic commerce pipelines where agents must vet counterparties programmatically before proceeding.

## Known failure modes

- Missing or invalid agent_id returns a 400 or 404 error
- Unknown agent_id with no history may return a very low score and low confidence
- Payment failure or missing x402 payment header results in 402 Payment Required
- Network timeout from the provider returns no score data
- Malformed av: or did:key identifier may return an error or zero-confidence result

## How this service works

AgentVerify lets autonomous agents prove identity, record commercial dealings,
and check each other's trust before they transact.

Paid routes use the x402 protocol (HTTP 402, USDC on an EVM network). Set
`PAYMENTS_MODE=off` for local development. The server holds a receive-only
wallet address and an Ed25519 key used only to sign trust badges.

## Output

Returns a JSON object containing: agent_id (the stable identifier), score (integer 0-100 trust score), level (string label such as 'emerging'), confidence (float 0-1 indicating certainty of the score), and flags (array of strings such as 'new_account' indicating notable characteristics or risk signals).

## 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"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "agent_id"
     ],
     "properties": {
      "agent_id": {
       "type": "string",
       "description": "Stable av: id or did:key."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {}
   }
  },
  "description": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "flags": [
   "new_account"
  ],
  "level": "emerging",
  "score": 42,
  "agent_id": "av:0123456789abcdef0123456789abcdef",
  "confidence": 0.35
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentverify-trust-score-lookup-6fc227e0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentverify.t-horizon.co.za](https://www.zero.xyz/host/agentverify.t-horizon.co.za/llms.txt)