Check if a user is blocked

Changed on Oct 6, 2026

Definitive blocked-state lookup for a single contact. Meta exposes no membership endpoint, so this reads Zernio's blocklist mirror (kept in sync by the block/unblock endpoints; the first call per account backfills the mirror from Meta's full list). Constant-time regardless of blocklist size.

get/v1/whatsapp/block-users/status

Request

Base URL: https://zernio.com/api
URL: https://zernio.com/api/v1/whatsapp/block-users/status
Auth: HTTP bearer

Query parameters

accountIdstring required

userstring required

Consumer wa_id or E.164 phone (leading + optional)

Response

Blocked state

blockedboolean

Changes

Oct 6, 2026f8c8f34fb41a Revision changes
- warning
  added the new account enum value to the / response property for the response status
Oct 2, 2026d556591af3f6 Revision changes
- info
  added the optional property to the response with the status
- info
  added the optional property to the response with the status
- info
  added the optional property to the response with the status
- info
  added the optional property to the response with the status
- info
  added the optional property to the response with the status
- info
  added the optional property to the response with the status
- info
  added the optional property to the response with the status

Operation history