It's what runs poké.cards, released for anyone to use. Nothing has shipped yet; this page is here so you know what's coming and in what shape.
94,133 cards · 273,673 prints · 13 languages · 4 print zones · 35 sources reconciled
The same card can carry a different number, name and rarity depending on whether it was printed for the international market, Japan, Asia or China, and the sources that track it rarely agree on which. Untangling that is most of the work.
It's also why every value in the dataset keeps a record of where it came from. When two sources disagree, you can see which said what, instead of inheriting a decision someone else made for you.
There's no API yet. Its shape gets settled once the data stops moving, because publishing an interface built on guesses just means versioning your mistakes later.
When it lands: free, no key, no quota, and the raw dataset downloadable in one piece. If you're building something and want a say in the shape it takes, get in touch.