Humor, Jokes, and Memes.
Humor API is a free Games & Comics API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
Humor API is the only API for jokes, memes, and everything funny you'll ever need.
Details from humorapi.com.

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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.
The Humor API is provided by Humor API: Jokes, Puns, Gifs, and Memes Galore (humorapi.com). Humor API is the only API for jokes, memes, and everything funny you'll ever need.
Yes. The Humor 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 Humor API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the Humor API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Humor API is served over HTTPS, so it's safe to use in production.