Pokémon TCG
Pokémon TCG Information

Database of Pokémon sprites and icons.
PokéSprite API is a free Games & Comics API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.

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Pokémon TCG Information
Yes. The PokéSprite API is listed in the Games & Comics category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The PokéSprite API requires no authentication, so you can start making requests without signing up.
Yes. The PokéSprite API supports CORS, so front-end JavaScript can call it directly.
Yes. The PokéSprite API is served over HTTPS, so it's safe to use in production.