The Intercom API allows for searches where a data attribute "has any value". I'm looking to perform a similar search through the API but "known" is not an "operator". I see the UI is using the old /users API, wondering if this search is available using the new contacts API. Thank you.

Looks like "query": { "field": [field], "operator": "!=", "value": null }does the trick

API search for customers where a custom data attribute "has any value"

API search for customers where a custom data attribute "has any value" | Community