BitcoinCharts
Financial and Technical Data related to the Bitcoin Network
Halving era, block reward, and schedule arithmetic for any Bitcoin block height.
Bitcoin Halving 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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Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Financial and Technical Data related to the Bitcoin Network
Live yields on BTC, ETH and stablecoins across DeFi and CeFi, with an A-D risk grade per offer
Digital Asset Price Data for the blockchain industry
Get the list of all traded assets in the exchange
Yes. The Bitcoin Halving 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 Bitcoin Halving API requires no authentication, so you can start making requests without signing up.
Yes. The Bitcoin Halving API supports CORS, so front-end JavaScript can call it directly.
Yes. The Bitcoin Halving API is served over HTTPS, so it's safe to use in production.