Will there be an option to delete attachments through the API?

[formbuilder]

September 2025 feature update

We’re excited about a new major release deployed to Global and EU KoboToolbox servers on 3 September at 20:35 UTC. Here are some of the highlights: :paperclip:Attachments & File Management You can now bulk delete attachments in the table view or delete individual files. Attachments then no longer count against storage limits. Clear and consistent handling of deleted files across tables, views, galleries, exports, and submission modals. [image] Exports Users can now create exports …

Will there be an option to delete attachments through the API as well?

[tinok]

@formbuilder

Wow, that is super cool, this feature will help me save a lot of storage, will there be an option to delete attachments through the API as well?

Of course! When a user deletes an attachment via the API it calls DELETE on api/v2/assets/[assetID]/attachments/[attachmentID]. You can see this in action in the network tab in your browser.

The data endpoint at api/v2/assets/[assetID]/data includes the attachmentID as uid in the _attachments section for the specific submission.

So if you’re using a script you can look for any submissions with attachments, then take the uid and delete each one.

In the same section, you will then see "is_deleted": true to confirm that the deletion was successful.