Automate export (backup) of Trello boards

These seem like the two simplest options -

• Set this Google Drive script to run and save all the card data to a spreadsheet - http://www.littlebluemonkey.com/online-scrum-tools-part-4-trello-backup/

• There is a php script on github that you could setup on a cron - https://github.com/mattab/trello-backup

Just wrote a post about that on my blog.

You're just missing some options that makes the API return more info. Check their API docs for the list of available options, or just try and add:

actions=all&actions_limit=1000&cards=all&lists=all&members=all&member_fields=all&checklists=all&fields=all

to get as much information as possible (as far as I can tell)

If you want to download .json files automatically for all your Trello.com boards, I wrote a small script that does it using the API: Trello-backup on Github

I setup the script to run as a daily task and all my valuable trello boards/cards/lists are automatically saved on my computer as JSON files. Good for peace of mind!