Index onlineMerchant portal
Api Endpoint

ChainWard wallet lookup

Fast wallet lookup on Base or BNB Chain (?chain=bsc): OFAC sanctions, first seen, last active, sent transactions, native and USDC balances, and the first funder (sanctioned, exchange or hub, or funder of many wallets). Verdict hold / review / no_flags with one reason; a never-used Base address planted as an address-poisoning decoy gets hold; a payer that is a px402 privacy pool relayer gets review, since the real payer is hidden. Built for screening payout lists, signups and counterparties.

Open interactive test console

Offering

Provider
api.chainward.ai
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.chainward.ai/api/risk/wallet
MIME type
application/json
First seen
2026-10-16T02:01:31.612Z
Last seen
Tags
Wallet, address, lookup, screening, sanctions, OFAC, sybil, funder, age, Base, bsc, Agents, KYT

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xf7Ee65130Fb2B3bb42Cc5cbFED085d7D482667cD"
  }
]

Observed health

Status
Healthy
Latest latency
268 ms
Average latency
598 ms
HTTP status
402
Last checked
Reachability
100% over 15 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "address": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "Address to check"
        },
        "chain": {
          "type": "string",
          "enum": [
            "base",
            "bsc"
          ],
          "default": "base",
          "description": "Chain the address is on. Payment is USDC on Base either way."
        }
      },
      "required": [
        "address"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object"
    }
  },
  "required": [
    "type"
  ]
}