RELATED IDEAS
REST API should support discovery of custom fields
We have REST API to extract data for analytics. If we had metadata for custom fields the API code could could extract custom fields without additional coding every time a field was added or changed.
Thank you for reaching out! The API currently allows you to request all custom fields with the query string
?fields=custom_fields
Does that solve your need? If not, please let us know a little more about how you would like to use it.