ToolVet
80trust / 100

Validate

by Tanod utilpeek in Weather & location

x402 APIPassing, checked 4 h ago

utilpeek (Tanod) identifier check: format and check digits only, of an IBAN, BIC, EU VAT, ISBN, ISSN, EAN, ISIN, LEI, IMO or a national tax/business ID; not an existence or registration check (no registry or VIES call). Payment card numbers are not accepted.

POST https://tanod.dev/v1/validate

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
280 ms typical, 809 ms slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

POST https://tanod.dev/v1/validate

Each call costs $0.001 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://tanod.dev/v1/validate
content-type: application/json

{
  "kind": "iban",
  "value": "GB82 WEST 1234 5698 7654 32"
}

Parameters

ParameterTypeRequiredDescription
kindstringYesIdentifier kind: iban, bic, vat (EU, format only, no VIES call), isbn, issn, ean, isin, lei, imo, luhn (generic mod-10 check digit), or a national format (au_abn, br_cnpj, br_cpf, ca_bn, ch_uid, de_idnr, es_nif, fr_siren, fr_siret, gb_vat, in_pan, mx_rfc, nl_bsn, us_ein). Payment card numbers are n… One of: iban, bic, vat, isbn, issn, ean, isin, lei, imo, luhn, au_abn, br_cnpj.
valuestringYesThe identifier (1-64 printable ASCII characters; spaces, - . / allowed).

Example response

The provider's example. We can't check it without paying.

{
  "compact": "GB82WEST12345698765432",
  "detail": {
    "bank_code": "WEST",
    "bban": "WEST12345698765432",
    "branch_code": "123456",
    "check_digits": "82",
    "country": "GB",
    "country_name": "United Kingdom"
  },
  "formatted": "GB82 WEST 1234 5698 7654 32",
  "kind": "iban",
  "label": "International Bank Account Number",
  "note": "Format and check-digit validation only, computed offline: a valid result does not mean the identifier exists, is assigned or is active (no registry, bank, VIES or card-network lookup is made).",
  "reason": null,
  "source": {
    "library": "python-stdnum 2.2",
    "license": "LGPL-2.1-or-later (unmodified dependency)",
    "url": "https://arthurdejong.org/python-stdnum/"
  },
  "valid": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://tanod.dev/v1/validate' \
  -H 'content-type: application/json' \
  --data-raw '{"kind":"iban","value":"GB82 WEST 1234 5698 7654 32"}'

# 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://tanod.dev/v1/validate' \
  -H 'content-type: application/json' \
  --data-raw '{"kind":"iban","value":"GB82 WEST 1234 5698 7654 32"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Fvalidate&method=POST
const res = await pay("https://tanod.dev/v1/validate", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "kind": "iban",
    "value": "GB82 WEST 1234 5698 7654 32"
  }),
});
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://tanod.dev/v1/validate",
        json={
            "kind": "iban",
            "value": "GB82 WEST 1234 5698 7654 32",
        },
    )
    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.

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