OverviewREST · JSON

Card Validator

Luhn checksum + network detection (BIN/length). Format check only — not a live card check.

Method: POST
Endpoint: /v1/credit-card
Auth: X-API-Key
Format: JSON
Checks: Luhn + network (BIN/length)
Note: format only — not a live check
Status: 200 · 400 · 401 · 402 · 429

Trylive · no key

POST /demo/credit-card

application/json200

// enter a card number and hit Check

Format check only — Luhn checksum + network detection (BIN/length). This does not verify that the card exists, is active, or has funds.

Pricingmonthly + usage

Referencecurl · SDK · OpenAPI

curl -X POST https://atomios.me/api/v1/credit-card/ \
  -H "X-API-Key: $ATOMIOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"number":"4111111111111111"}'

Ratingscommunity