WooCommerce REST APIS to create, read, update, and delete data on wordpress website in JSON format.
WooCommerce API is a free Shopping API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Details from woocommerce.github.io.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Sold resale prices from Vinted (7 European countries) and eBay US, with median and price range
Sold resale listings from Poshmark with median price, days to sell and net payout after fees
The WooCommerce API is provided by WooCommerce REST API Documentation (woocommerce.github.io).
Yes. The WooCommerce API is listed in the Shopping 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 WooCommerce API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The WooCommerce API supports CORS, so front-end JavaScript can call it directly.
Yes. The WooCommerce API is served over HTTPS, so it's safe to use in production.