Open Source Reddit Clone.
Saidit API is a free Social API that requires OAuth authentication, is served over HTTPS and has unconfirmed CORS support.

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.
Reddit data API: subreddit listings, post/comment/community/user search, comment trees, top posts
Yes. The Saidit API is listed in the Social 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 Saidit API uses OAuth authentication, so you need to register for credentials before making requests.
CORS support for the Saidit API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Saidit API is served over HTTPS, so it's safe to use in production.