# Agent Reputation Check by Agentropolis

> Agent Reputation Check by Agentropolis is a paid API for AI agents from seenly-agent-reputation.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-27).

Looks up trust score, verified ownership, real buyer history, and wash-trade flags for an agent/MCP/A2A endpoint or wallet address.

## Facts

- Endpoint: GET https://seenly-agent-reputation.vercel.app/api/check?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-reputation-check-by-agentropolis-c82fb408
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L1cOCe_DQMQCtRtwEXDai

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-reputation-check-by-agentropolis-c82fb408
```

Example prompt: Before I pay this agent, can you check its Agentropolis reputation — the URL is https://someagent.example.com/agent.json and the wallet is 0xABCD1234? I want to see the trust score, whether the domain is verified, and if there are any wash trade flags.

## When to prefer this

Choose this endpoint when an AI agent or automated system needs to vet another agent, wallet, or API endpoint before interacting with it financially or operationally. It is specifically valuable in agentic marketplaces where wash trading and fake listings are a concern, and when you need deterministic (non-LLM) reputation data rather than a subjective assessment. Prefer it over general WHOIS or blockchain explorers when you need a combined trust score covering domain verification, on-chain buyer history, and wash-trade detection in a single call.

## Known failure modes

- URL does not resolve to a recognized agent card or MCP endpoint — returns limited coverage notice
- Wallet address not found in Agentropolis registry — returns low-data response with coverage warning
- Invalid or malformed URL/address input — returns validation error
- Agent is too new or obscure to have meaningful history — returns coverage-limited response with partial data
- Network or upstream data source unavailable — may return timeout or service error

## How this service works

Agent Reputation Check by Agentropolis: give a payTo and/or an agent / A2A / MCP URL. Returns owner, verified domain, real outside buyer history, wash flags and trust score from Agentropolis. Says when coverage is limited. Deterministic, no LLM.

## Output

Returns structured data including: the agent/wallet owner identity, verified domain status, real outside buyer transaction history, wash trade flags indicating suspicious activity, an overall trust score, and a note on coverage limitations if data is sparse for the queried entity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "HTTPS agent card, A2A, MCP, kit.json, or origin URL to resolve."
  },
  "payTo": {
   "type": "string",
   "description": "Seller / agent receive address (0x…). Optional if url resolves to one."
  },
  "domain": {
   "type": "string",
   "description": "Optional domain hint."
  },
  "listing_id": {
   "type": "string",
   "description": "Optional Agentropolis listing id hint."
  },
  "requestKey": {
   "type": "string",
   "maxLength": 128
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "kit": "seenly.agent-reputation-check",
  "owner": {
   "organization": "Agentropolis",
   "verified_domains": [
    "seenly-pay-guard.vercel.app"
   ]
  },
  "payTo": "0xeE6239F3E17bEBe5e89F21F29D74D68CAa0d78CE",
  "coverage": "partial",
  "listings": [],
  "aggregate": {
   "wash_flags": [],
   "trust_score": 0.7,
   "verified_domains": [
    "seenly-pay-guard.vercel.app"
   ],
   "last_settlement_at": null,
   "first_settlement_at": null,
   "top_buyer_share_30d": 0.4,
   "distinct_real_buyers_30d": 3,
   "independent_settlements_all_time": 3
  },
  "check_version": "agent-reputation-check-0.1.0",
  "coverage_note": "Figures come from Agentropolis public listing trust...",
  "verified_domain": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-reputation-check-by-agentropolis-c82fb408/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from seenly-agent-reputation.vercel.app](https://www.zero.xyz/host/seenly-agent-reputation.vercel.app/llms.txt)