<Info>This API is in beta. Endpoints, fields, and behavior may still change, so avoid depending on it in production.</Info>

Publishes a site you built yourself. Upload the build output as a .tar.gz archive, and it's live on the app's published URL by the time the request returns.

Archive the contents of the build folder rather than the folder itself, so that index.html sits at the root of the archive. The archive can be up to 50 MB, both as uploaded and once extracted, and can hold up to 1,000 files. Links, and files whose path is absolute or contains .. or :, are left out without an error.

The archive replaces the whole published site. It doesn't change the app's code, backend functions or entities. An app that isn't published yet, or that was unpublished, is published by this. Sending an archive identical to one the app already uploaded publishes the stored copy without uploading it again.

With a personal API key you need permission to publish apps in the app's workspace. A workspace API key with the apps:deploy scope doesn't need it.

This is limited to 5 requests per minute for each workspace's API keys, counted across all of the workspace's apps, so every personal and workspace API key in a workspace shares one allowance. Some workspaces have a different limit.

<Note>This endpoint accepts a personal API key belonging to a user with editor access to the app, or a workspace API key with the apps:deploy scope. A read-only key is refused.</Note>

{
  "deployed_at": "2026-09-30T12:34:56.789000",
  "app_url": "https://task-tracker.base44.app"
}