chucknorris.io vs PotterDB

chucknorris.io is a free, keyless JSON API serving hand-curated Chuck Norris jokes, either fully random or filtered across 16 categories (career, dev, movie, political, sport, and more). It also supports free-text search over the joke corpus and returns each joke with a permalink and an icon-URL field for quick embedding. There's no rate limit, no signup, and no paid tier — it's run as a hobby project on Heroku behind Cloudflare.

PotterDB is a free, keyless database of the Harry Potter universe covering books, chapters, characters, movies, potions, and spells, reachable through both a JSON:API-style REST interface (api.potterdb.com) and a GraphQL endpoint. Every resource supports filtering, sorting, sparse fieldsets, and pagination in the JSON:API convention, and the REST side publishes a live OpenAPI schema. It's a community-run, open-source project welcoming Hacktoberfest contributions rather than a commercial offering.