Leads Verify

{
  "checked_at": "2026-10-02T10:00:00+00:00",
  "company": {
    "address_match": 1,
    "address_shielded": false,
    "age_years": 9.4,
    "employees": 1,
    "legal_form": "Besloten vennootschap",
    "name_match": 1,
    "registered": true,
    "registered_address": {
      "city": "Lollum",
      "country": "NL",
      "house_number": "3 A",
      "postcode": "8823 SJ",
      "street": "Hizzaarderlaan"
    },
    "registered_name": "Test BV Donald",
    "registered_since": "2017-05-19",
    "sbi_main": "01241",
    "status": "active"
  },
  "correlations": {
    "kbo_contact_match": null,
    "kbo_vat_address_match": null,
    "kvk_website_match": null,
    "phone_match": null,
    "website_identifier_match": null
  },
  "discovered_identifiers": [],
  "dormant_shell": {
    "flag_at": 50,
    "score": 0,
    "signals": [],
    "unknown": [
      "no_website",
      "no_annual_accounts"
    ]
  },
  "email": {
    "checked": true,
    "disposable": false,
    "has_mx": true
  },
  "findings": [],
  "flags": [],
  "iban": {
    "bank": "ABN AMRO BANK N.V.",
    "bic": "ABNANL2A",
    "checked": true,
    "country": "NL",
    "country_agreement": true,
    "holder_checked": false,
    "last4": "4300",
    "valid": true
  },
  "icp_fit": null,
  "identifier_discovery_reason": "number_given",
  "lead_score": 95,
  "reason": null,
  "sanctions": {
    "hit": false,
    "lists_as_of": {
      "OFAC SDN": "2026-10-01"
    },
    "reason": null,
    "screened": true
  },
  "schema_version": "lead-verify-v1",
  "sources_checked": 4,
  "vat": {
    "checked": false,
    "name_match": null,
    "reason": null,
    "valid": null
  },
  "verdict": "real_active",
  "website_phones": [],
  "website_phones_reason": "website_phones_disabled"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.limitguard.ai/v1/leads/verify' \
  -H 'content-type: application/json' \
  --data-raw '{"country":"NL"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.limitguard.ai/v1/leads/verify' \
  -H 'content-type: application/json' \
  --data-raw '{"country":"NL"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.limitguard.ai%2Fv1%2Fleads%2Fverify&method=POST
const res = await pay("https://api.limitguard.ai/v1/leads/verify", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "country": "NL"
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.limitguard.ai/v1/leads/verify",
        json={
            "country": "NL",
        },
    )
    print(res.status_code, res.text)