NINO check
GET /v1/check/nino checks that a National Insurance number matches the issued format: two letters, six digits, then A to D. It rejects reserved prefixes and invalid second letters.
This is not a live HMRC register lookup. A passing format check does not prove the number was issued to a real person.
Try it
https://fetch.li/v1/check/nino?number=QQ123456C
Parameters
| Parameter | Required | Description |
|---|---|---|
number |
Yes | NINO with or without spaces |
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/nino
Answer
Response