Luhn check
GET /v1/check/luhn runs the Luhn algorithm on 8 to 19 digits. That covers many card numbers, IMEIs, and similar identifiers.
This is not a card scheme, bank, or IMEI register lookup. A passing checksum does not prove the number was issued or is in use.
Try it
https://fetch.li/v1/check/luhn?number=79927398713
Parameters
| Parameter | Required | Description |
|---|---|---|
number |
Yes | 8 to 19 digits, spaces allowed |
Demo
GET endpoints work without an API key on the public demo tier (60 calls per hour per IP).
Try it
GET https://fetch.li/v1/check/luhn
Answer
Response