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Getting Started

The SIA Checker API provides programmatic access to the gov.uk public register of licence holders through a simple HTTP interface.

This guide shows how to make your first request and where to explore the API further.

Base URL

Text Only
https://api.siachecker.co.uk

Authentication

All requests must include an API key in the Authorization header.

HTTP
Authorization: Bearer YOUR_API_KEY

See Authentication for details.

Make your first request

Verify a licence number:

Bash
curl -X POST https://api.siachecker.co.uk/v1/licences/verify \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "licenceNumber": "1234567890123456"
  }'

A successful request returns the licence details published in the public register.

Next steps