ToolVet
80trust / 100

T Cpr Dk Validate

by Toll402 in Developer tools

x402 APIPassing, checked 3 h ago

Offline validator/normalizer for a Danish CPR-nummer (personal identification number, format DDMMYY-SSSS). Checks digit count and date-of-birth validity, determines century from the 7th digit per official rules, and derives birth date and gender (last digit odd=male, even=female). Does not rely on the modulus-11 checksum since it has not been guaranteed valid for numbers issued since 2007.

POST https://toll402.dev/v1/t/cpr_dk_validate

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
223 ms typical, 223 ms slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://toll402.dev/v1/t/cpr_dk_validate" \
  -H "content-type: application/json" \
  -d '{"cpr":"010190-0006"}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftoll402.dev%2Fv1%2Ft%2Fcpr_dk_validate
const res = await pay("https://toll402.dev/v1/t/cpr_dk_validate", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"cpr":"010190-0006"}),
});
console.log(await res.json());

Example input

{
  "cpr": "010190-0006"
}

Example output

{
  "ok": true
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402223 ms$0.001
8 h agoPassed402253 ms$0.001