API Terms

The JSON API (/check.php and batch verification) is free to use under these conditions.

1. Required link

Any page or application consuming this API must display a visible link to https://loreatec.jp/e/ (or https://loreatec.jp/). The link_required field in every JSON response reflects this condition.

2. Rate limits

30 requests/minute and 500 requests/day per IP. Exceeding them returns HTTP 429 with a Retry-After header. Need more? Contact us.

3. Attribution

Data originates from the National Tax Agency Qualified Invoice Issuer Publication Site. If you re-display the data, state the source.

4. No warranty

The information is provided for reference only, with no warranty of accuracy, completeness or availability. Verify tax-relevant decisions against primary sources or a licensed professional. The API may change or be discontinued without notice.