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With the election of Leo XIV as the new pope, 8 May (the day of his election) and 17 September (the name day of Saint Robert Bellarmine, whom the pope chose as his patron saint) were declared new holidays in the Vatican. #openholidaysapi has been updated. english.katholisch.de/artikel/6254....
New Pope Leo XIV creates two new public holidays in the Vatican
Two days related to Francis are cancelled in return
english.katholisch.de
November 21, 2025 at 12:14 PM
Bulgaria’s Cabinet agreed on November 19 that December 31 2025 and January 2 2026 will be public holidays, as a one-off event. The reason for this is the changeover to the euro. #openholidaysapi has been updated accordingly. sofiaglobe.com/2025/11/19/b...
Bulgaria extends New Year public holidays because of transition to euro
Bulgaria’s Cabinet agreed on November 19 that December 31 2025 and January 2 2026 will be public holidays, as a one-off event, Finance Minister Temenuzhka Petkova said. This is necessary in c…
sofiaglobe.com
November 21, 2025 at 7:42 AM
July 30, 2025 at 1:56 PM
We have stepped into South America: Added #publicholidays for #brazil to the #openholidaysapi. www.openholidaysapi.org/en/
June 11, 2025 at 8:34 PM
We have stepped into North America: Added #publicholidays and #schoolholidays for #mexico to the #openholidaysapi. www.openholidaysapi.org/en/
June 11, 2025 at 8:31 PM
March 5, 2025 at 8:56 PM
With #opent8, we have published a standardised #json format for representing complex timetable data. We actually released OpenT8 last year, but now a new, extensively revised version has been published. As always, feedback is welcome.

openpotato.github.io/opent8 (currently only in German, sorry)
February 28, 2025 at 11:30 AM
February 11, 2025 at 8:36 PM
February 7, 2025 at 10:06 AM
February 7, 2025 at 10:05 AM
Reposted by OpenPotato
Neues #opendata Tool von @openpotato.org: OpenPLZ API - ein öffentliches Straßen- und Postleitzahlverzeichnis (inklusive Gemeindedaten) für DE, LI, die CH und Österreich über eine offene REST-API-Schnittstelle verfügbar macht - verwendet offene Daten der @statistik.at www.data.gv.at/katalog/appl...
February 3, 2025 at 10:10 AM
With #opencodelist, we have published a generic data format that allows code lists to be modelled in #json. It's all open source and comes with a parser for .NET and Delphi. As always, feedback is welcome. openpotato.github.io/opencodelist...
January 29, 2025 at 12:33 PM
From 2025, #poland will have an additional #publicholiday on Christmas Eve (Wigilia Bożego Narodzenia). #openholidaysapi has been updated accordingly.
www.polskieradio.pl/395/7784/art...
Christmas Eve officially a day off in Poland from 2025!
Polish President Andrzej Duda signed the so-called "Work-free Christmas Eve act" on Friday evening - the President's Chancellery informed.
www.polskieradio.pl
January 12, 2025 at 9:11 PM
One-off #publicholiday for #berlin (Germany) on 8 May 2025 (80th anniversary of the liberation from National Socialism and the end of the Second World War) added to #openholidaysapi.
www.berlin.de/aktuelles/91...
Einmaliger Feiertag am 8. Mai 2025
Anlässlich des 80. Jahrestags der Befreiung vom Nationalsozialismus und des Endes des Zweiten Weltkriegs wird der 8. Mai 2025 in Berlin zum gesetzlichen Feiertag.
www.berlin.de
January 12, 2025 at 9:20 AM
𝗢𝗽𝗲𝗻𝗣𝗟𝗭 𝗔𝗣𝗜 𝗩𝗲𝗿𝘀𝗶𝗼𝗻 𝟭.𝟬 𝗶𝘀 𝗼𝘂𝘁!

It's an open data project that makes a public street and postal code directory for Germany, Austria, Switzerland and Liechtenstein freely available via an open REST API interface.
www.openplzapi.org/en/
January 10, 2025 at 2:17 PM
OpenPotato is the home of several open data projects. Here you will also find open source tools for data exchange and data generation. We just moved over from X/Twitter :-)
www.openpotato.org/en/
January 10, 2025 at 2:11 PM