Pokémon TCG cards and sets in 14 languages, with every printing and variant.
Master Setter API is a free Games & Comics API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
199,314 Pokémon cards. 276,657 printings. 14 languages. JSON over HTTPS and MCP.
Details from api.master-setter.com.

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The Master Setter API is provided by Master Setter API (api.master-setter.com). 199,314 Pokémon cards. 276,657 printings. 14 languages. JSON over HTTPS and MCP.
Yes. The Master Setter 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.
Yes. The Master Setter API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The Master Setter API supports CORS, so front-end JavaScript can call it directly.
Yes. The Master Setter API is served over HTTPS, so it's safe to use in production.