The API supports some filtering (archived, deleted) for fetching Projects via this endpoint: https://developers.hive.com/reference/get-projects

It would be valuable to be able to filter by custom field values in API requests.

For example, a request like below would return items which have a custom field with ID "Foo" and a value for that custom field set to "Bar":

GET /api/v2/workspaces/MY_WORKSPACE_ID/projects?filters[Foo]=Bar