API

Read-only JSON. No key needed. Cache responses rather than polling.

List sets

GET/api/sets

All parameters are optional. Lists are comma separated.

Param	Values	Example
q	Search names, codes, series and year	delta
lang	en, ja, zh-tw, zh-cn	en,ja
kind	main, special, promo, deck, energy, other	main
era	wotc, ecard, ex, dp, hgss, bw, xy, sm, swsh, sv, mega	ex
sort	releaseDate, name, code, totalCards, language	releaseDate
order	asc, desc	desc

GET/api/sets/:lang/:slug

Adds equivalents (the same set in other languages) and previous and next by release date.

Set names, codes, dates and card counts are facts gathered from the sources in the footer. Credit them.
Chinese English names and the links between languages are ours. Reuse them with a link back.
Set marks (the symbol field) and logos are trademarks of The Pokémon Company. logo URLs point at the site they came from.
codeOfficial is false where the code is a community convention or not yet confirmed.