Are you talking about a Custom Field? Because trello cards don't have that field by default. To use our API with Custom Fields, please see the documentation.
https://developer.atlassian.com/cloud/trello/rest/api-group-customfields/#api-customfields-id-get
If you are not referring to a Custom Field, you may be referring to a Power-Up enabled on your board, which in that case you may need to reach out to the Power-Up's developer instead. (Trello does not maintain any Power-Ups unless the Power-Up specifically says "Made by Trello" or "Made by Atlassian")
Jireh
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.