An action for interacting with the CurseForge file upload API https://authors.curseforge.com/knowledge-base/projects/529-api#project-upload

See action yml.

Here is an example workflow. It uploads test_jar.jar as "Test Jar" as an alpha build to this project with versions 1.12.2 and Java 8, a changelog simply stating "Test changelog message!" with a marked incompatibility with this project and an optional dependency on this project

You can numerical (effecient) IDs by making a request to and picking your versions https://(endpoint).curseforge.com/api/game/versions?token=(your_token) However, this is not always convenient. You can also use names/slugs from that link, for example: "1.12.2" and "Java 8" will be automatically parsed into the proper id. You may encounter issues with names/slugs that have multiple entries with different game version types. The minecraft endpoint has "1.12" 5 seperate times with different game version types for Bukkit, Minecraft 1.12, etc. To fix this, you can prefix a game version with a type id or type id slug/name. For example "Minecraft 1.12:1.12" would get you ONLY the Minecraft 1.12 version and not the 4 others. Another example is "java:Java 8". This filters to anything named "Java 8" with the type matching the slug/name "java".

Obtain them here: https://authors.curseforge.com/account/api-tokens