Ladies and Gentlemen!
We received information that due to planned modernization works of the REGON register, API (BIR1 service) provided by REGON will be unavailable on July 24, 2020 (Friday) at 17:00 – 20:00.
The above-mentioned unavailability of the REGON register affects the availability of functions offered by the nip24.pl API. Due to the unavailability of the REGON register API, it will not be possible to obtain a response directly from the REGON register when calling the function: isActive, getInvoiceData and getAllData.
If you have any questions, please contact the Customer Service Office.
nip24.pl team
English (UK) 
Polski