# 402.com.tr Address Trust & Identity Check

> 402.com.tr Address Trust & Identity Check is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Checks a Base address for Coinbase onchain KYC verification (EAS attestation) and Basename, returning a verified/named/anonymous verdict with a trust score

## Facts

- Endpoint: GET https://402.com.tr/api/x402/address-trust
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402-com-tr-address-trust-identity-check-f46a4980
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nPsnEzw6y40sMLaSdnL-i

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 402-com-tr-address-trust-identity-check-f46a4980
```

Example prompt: Before I send funds to 0x4a8f...d3c2, can you check whether that Base address is KYC-verified on Coinbase and give me a trust score — I want to know if it's verified, just named, or fully anonymous?

## When to prefer this

Use this endpoint when you need the strongest available sybil-resistance signal on Base — specifically Coinbase's onchain KYC EAS attestation — before a transaction or interaction. Prefer this over generic on-chain activity checks when the question is 'is this a real, identity-verified human?' rather than just 'is this wallet active?' Pair with sign-guard and spend-audit for a full pre-transaction identity gate.

## Known failure modes

- Invalid or malformed address returns an error
- Address not found on Base returns anonymous verdict with low trust score
- Network or RPC issues fetching EAS attestation data
- Rate limiting or payment failure on the x402 payment layer

## How this service works

🆕 The 'who am I dealing with?' check for agents. Reads Coinbase's ONCHAIN verification (an EAS attestation by verifications.coinbase.eth) — meaning the address is tied to a KYC'd Coinbase account, the strongest sybil-resistance signal on Base — plus the address's Basename. Returns a verified/named/anonymous verdict + trust score. Pair with sign-guard/spend-audit for a full pre-transaction gate. Identity is a signal, not proof of honesty.

## Output

Returns a verdict (verified, named, or anonymous), a numeric trust score, the address's Basename if one exists, and whether a Coinbase EAS KYC attestation is present — indicating the address is tied to a real, identity-checked Coinbase account.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Address to check"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/402-com-tr-address-trust-identity-check-f46a4980/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 402.com.tr](https://www.zero.xyz/host/402.com.tr/llms.txt)