Close API
is_group_number query parameter removal on GET /api/v1/phone_number
Deprecated, no dateSubscribe to Close APIShare
On July 21, 2026, Close API deprecated the query parameter is_group_number on GET /api/v1/phone_number without a shutdown date. Close API also deprecated is_group_number as a field in phone number responses. Affected requests fail once the parameter is fully removed.
Calls it hits
GET /api/v1/phone_numberquery parameter is_group_number
What to use instead of these calls
Stop filtering on is_group_number. Filter by participant_user_id instead, which also returns the group numbers a user belongs to.
In Close API's words
The user_id and is_group_number fields on the Phone Number API are deprecated, both as query filters when listing phone numbers and as fields in phone number responses.
Facts
- API
- Close API
api.close.com - Kind
- Parameter removal
- Announced
- July 21, 2026
- Takes effect
- No date given yet
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
- Verified
- , against Close API's own pages
Questions
When does this change take effect?
Close API deprecated GET /api/v1/phone_number, query parameter is_group_number without giving a shutdown date yet.
Do these calls still work?
Yes, they still work: Close API has not given a shutdown date yet.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
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Is your code calling this?
Okapi finds the calls this change hits in your repo and opens the pull request with the fix.