# ERC-8004 Inspector Agent Identity & Reputation Lookup

> ERC-8004 Inspector Agent Identity & Reputation Lookup is a paid API for AI agents from contextiq.trango-compute.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Looks up the on-chain identity and reputation of an ERC-8004 registered agent by agentId and network, returning owner info, wallet, token URI, metadata, x402 endpoint, and client reputation summary

## Facts

- Endpoint: POST https://contextiq.trango-compute.com/api/v1/erc8004-inspector/x402-v2
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/erc-8004-inspector-agent-identity-reputation-lookup-1267e133
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xw-5sSpBMnIzEzxxFHKyz

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 erc-8004-inspector-agent-identity-reputation-lookup-1267e133 -d '<json body>'
```

Example prompt: Can you look up the on-chain identity and reputation of agent 0xABC123 on Ethereum mainnet using the ERC-8004 registry — I need to know who owns it, its x402 endpoint, and how many clients it has worked with?

## When to prefer this

Use this endpoint when you need to resolve the full on-chain identity and reputation of a specific ERC-8004 registered agent before engaging with it — especially before automated payments, agent-to-agent transactions, or counterparty risk assessments. Prefer this over the Agent Commerce Gate when you only need the raw identity/reputation data without the full pre-payment risk decision workflow. This is the right choice when you have an agentId and network and need to verify ownership, discover the x402 endpoint, or audit client reputation history.

## Known failure modes

- Agent not found on the specified network — status returns 'not_found'
- Invalid or malformed agentId — likely returns error status
- Unsupported or incorrect network identifier — error response
- Agent is registered but has incomplete or missing metadata — partial identity object returned
- Network RPC connectivity issues — error status with network error message
- Reputation data unavailable for newly registered agents — empty clients array

## How this service works

ERC-8004 Inspector agent lookup (identity + reputation) — per call

## Output

Returns a structured object containing: status (found/not_found/error), agentId, network, networkLabel, identity details (owner address, agentWallet, tokenURI, metadata, x402Endpoint), a reputation object (clientCount, list of clients, summary text), and any warnings associated with the agent.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "status": {
   "type": "string",
   "description": "found, not_found, or error"
  },
  "agentId": {
   "type": "string"
  },
  "network": {
   "type": "string"
  },
  "identity": {
   "type": "object",
   "description": "owner, agentWallet, tokenURI, metadata, x402Endpoint"
  },
  "warnings": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "reputation": {
   "type": "object",
   "description": "clientCount, clients, summary"
  },
  "networkLabel": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/erc-8004-inspector-agent-identity-reputation-lookup-1267e133/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from contextiq.trango-compute.com](https://www.zero.xyz/host/contextiq.trango-compute.com/llms.txt)