Using the Amazing Fields REST API
Amazing Fields provides a REST API for developers who need programmatic access to Trello card data, including Amazing Fields values. The API is available to Supporters and handles the decoding of compressed Amazing Fields data on your behalf, returning it in a clean, readable format.
Note: Access to the Amazing Fields REST API is available to supporters on the Ultimate plan. If you're on a lower tier, you'll need to upgrade to use the API.
How the API works
Amazing Fields stores all data on the Trello servers, but in a compressed and encoded format to maximise storage efficiency. The API acts as a wrapper: it calls Trello on your behalf, decodes the Amazing Fields data, and returns it alongside the standard Trello board and card data in a format that is easy to work with.
The majority of the data returned matches the structure described in the Trello REST API documentation.
Getting your API token
- Open Amazing Fields Settings by clicking the Amazing Fields icon in the top-right corner of the board.
- Go to "Board Settings / Utilities."
- Find the "API Access" section and follow the instructions to allocate a token.

If you have a use case that the current API does not support, contact support@amazingpowerups.com with details. The API is actively developed and feature requests are considered.