Currently, a repository archive can be downloaded using the endpoint :

https://bitbucket.org/<workspace slug>/<repo slug>/get/<commit hash or branch name>.zip

However, it's currently only possible to use the username and app password or OAuth access token as the credentials for authentication.

When trying to use Repository Access Tokens (RATs) to authenticate :

curl --request GET --url 'https://bitbucket.org/<workspace>/<repository>/get/master.zip' --header 'Authorization: Bearer <Repository Access token>' 

The following error is returned :

{"type": "error", "error": {"message": "Token is invalid or not supported for this endpoint."}} 

This feature request is to implement the ability to download repository archives using RATs.