Entity Light Check
by Limitguard in Security & trust
Light company check for an agent: is the company on the NL (KVK) or BE (KBO) register and active, is its EU VAT number valid (VIES), and does its name match the OFAC, EU or UN sanctions lists? Each part says ok, not covered or unavailable. No owners, PEP or address match.
https://api.limitguard.ai/v1/entity/light-check- Price
- $0.05
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 274 ms
- 346 ms slowest 5%
- Last check
- Passed
- 1 h ago, next any minute now
Reliability
How to call it
POST https://api.limitguard.ai/v1/entity/light-check
Each call costs $0.05 in USDC on Base, paid with the request over x402.
Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.
Example request
From the listing.
POST https://api.limitguard.ai/v1/entity/light-check
content-type: application/json
{
"country": "NL"
}Example response
The provider's example. We can't check it without paying.
Example response, 35 lines
{
"active": true,
"as_of": "2026-10-13T09:00:00+00:00",
"country": "NL",
"not_checked": [
"name_match",
"address_match",
"owners",
"pep"
],
"register": {
"as_of": "2026-10-13T09:00:00+00:00",
"name": "Acme B.V.",
"source": "KVK",
"status": "active"
},
"registration_number": "68750110",
"sanctions": {
"list_dates": {
"EU": "2026-10-12",
"OFAC SDN": "2026-10-12",
"UN": "2026-10-12"
},
"lists_checked": [
"OFAC SDN",
"EU",
"UN"
],
"status": "no_match"
},
"vat": {
"status": "not_checked"
},
"vat_number": null
}Call it from code
The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.
curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.limitguard.ai/v1/entity/light-check' \
-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/entity/light-check' \
-H 'content-type: application/json' \
--data-raw '{"country":"NL"}' \
| grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decodeJavaScript: pay and call
// 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.limitguard.ai%2Fv1%2Fentity%2Flight-check&method=POST
const res = await pay("https://api.limitguard.ai/v1/entity/light-check", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"country": "NL"
}),
});
console.log(res.status, await res.text());Python: pay and call
# 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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
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/entity/light-check",
json={
"country": "NL",
},
)
print(res.status_code, res.text)Security scan
No findings
We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 1 h ago | Passed | 402 | 286 ms | $0.05 |
| 5 h ago | Passed | 402 | 346 ms | $0.05 |
| 10 h ago | Passed | 402 | 232 ms | $0.05 |
| 14 h ago | Passed | 402 | 274 ms | $0.05 |
| 18 h ago | Passed | 402 | 210 ms | $0.05 |
Show 1 older checks
| 28 h ago | Passed | 402 | 346 ms | $0.05 |