---
title: "Check if a user is blocked"
method: GET
path: "/v1/whatsapp/block-users/status"
tags: ["WhatsApp"]
---

# Check if a user is blocked

`GET /v1/whatsapp/block-users/status`

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.

## Query parameters

- `accountId` string, required
- `user` string, required

## Response `200`

Blocked state

- object
  - `blocked` boolean

## Other responses

- `401` — Unauthorized
- `404` — WhatsApp account not found

---

[API](https://skmtc.net/zernio/apis/zernio-api.md) · [All operations](https://skmtc.net/zernio/apis/zernio-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zernio/zernio-api/versions/51932b099b2f/schema)