Disclaimer: Data shown here is most likely incorrect. Use at your own risk. The main purpose is a kinda cheat sheet i can refer to.

Stuff that can help develop (better) APIs

API Purpose
TheTVDB.com the most accurate source for TV and film
TheTVDB.org, Developer Get started with the basics of the TMDB API.
The Open Movie Database Movies
www.igbd.com/api Video game database
pokeapi.co Everything pokemon
beta.pokeapi.co/graphql/console/ Everything pokemon > GraphQL Query
fakestoreapi.com Data for a fake store
www.edamam.com Food, recipes and health analyses
favqs.com/api/ Quotes
api.nasa.gov Everything space related
docs.mapbox.com/api Comprehensive tools and accurate location data
jsonplaceholder.typicode.com  
 
 

I found these links in a post on linkedin - but when i wanted to add the appr. link to the source i couldn’t find it again. Sorry for that. Public APIs Developers Can Use in Their Projects Free Public APIs for Developers > 1000 public APIs Instead i stumbled upon this video on API documentation and best practices. Thanks for creating the content Jason Harmon and sharing it free of charge Beau Carnes