Corporate, government and ETF Bitcoin, Ethereum and Solana treasury disclosures.
CorpStacking API is a free Cryptocurrency 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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Cryptocurrencies Payment & Prices
Yes. The CorpStacking API is listed in the Cryptocurrency 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 CorpStacking API requires no authentication, so you can start making requests without signing up.
Yes. The CorpStacking API supports CORS, so front-end JavaScript can call it directly.
Yes. The CorpStacking API is served over HTTPS, so it's safe to use in production.