Public APIs

WeatherAPI.com

This API will provide real time weather, future weather, air quality data, global weather alerts, and more. This is free to use if you have anything less than 2,000,000 requests a month, but if you have anything more the price will increase due to more requests.

Movie Database Alternative

With this API you will need to sign up for a RapidAPI account and the prices will requests you get each day. If you only get 1000 requests a day then the price will be free and then increase from there. With this API you can list the title of a movie, release date, genre, actors, and much more.

JokeAPI Documentation

JokeAPI generates free jokes that you can add into your site without and registration, or payments. You set up your prefrences for the jokes you want and then add the link into your page, then the joke will appear.

Summary

There are so many APIs to pick from that are free and can cost money depending on how many requests are occuring. There is APIs for weather, sports, finance, animals, and more. Some you do not need to sign up for while some require you to create an account. Once you are ready to use you just have to add it into your code and then the work is done.