Thanks to the hard work of Ven. @Sabbamitta Silashin, there are now German language blurbs for all 547 Jataka stories. When your site language is set to German, you can now see them on the suttaplex cards:
https://suttacentral.net/ja?view=normal
You can also see (and use!) the raw data file that contains them all:
These were created by Ven. @Sabbamitta from scratch by reading the complete translation of all the Jataka stories (over 760k words in the English translation). The corresponding English blurbs are (as I understand) just a copy paste of the first two lines of each story. So in this respect the German side of the site surpasses the English.
The inclusion of the Jataka stories on SuttaCentral is a bit of an anomaly. Generally the verses are considered canonical and the stories (and the word definitions) are considered comentarial.
Itâs easy to forget the presence of these blurbs and the hard work that goes into their creation. And the fact that not only are they CC0, but that the architecture of the site allows for them to be reused either through the APIs or simply by downloading the well formed JSON files means that they contribute to greater access to the suttas and the teachings of the Buddha.
Sadhu Sadhu!!!