I would like to program a Minecraft plugin for version 1.13.2, which requires, among other things, the Spigot API and the Bukkit API version 1.13.2.
Can someone tell me where to download them?
The easiest option is "http://getbukkit.org", where the updates are usually available relatively quickly.
Is that the API I need to add to my project in Eclipse?
Try BuildTools, where I always got the latest API.
https://www.spigotmc.org/...ls/#latest
You will also find instructions on the page, where everything will be explained step by step.
Jo that is then the file you have to insert.
If you generally need help with programming, feel free to contact me.