Jikan is an unofficial PHP/REST API built for MyAnimeList. It covers the features that the official MyAnimeList API lacks for developers.
It was originally developed as a script for fetching anime related details only and then evolved into an API.
Further more, it's capabilities were extended for developers as it became into a REST based API with it's own domain.
It's called "Jikan", because that means "time" in Japanese. So as a wordplay, Jikan is meant to save developers time from creating their own scrapers and such.
JikanPHP is built from scratch, there are no dependencies. It's available on Packagist and you can simply include it in your projects.
composer require jikan-me/jikan