Check if a user is blocked

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.

Authorization

AuthorizationBearer <token>

API key authentication - use your Zernio API key as a Bearer token

In: header

Query Parameters

accountIdstring

userstring

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

Response Body

application/json

import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.whatsapp.getWhatsAppBlockStatus({  query: {    accountId: 'account_abc123',    user: 'string',  },});console.log(data);

{
  "blocked": true
}

{
  "error": "Unauthorized"
}

Empty

Authorization

AuthorizationBearer <token>

API key authentication - use your Zernio API key as a Bearer token

In: header

Query Parameters

accountIdstring

userstring

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

Response Body

application/json

import Zernio from '@zernio/node';

const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });

const { data } = await zernio.whatsapp.getWhatsAppBlockStatus({
  query: {
    accountId: 'account_abc123',
    user: 'string',
  },
});
console.log(data);

import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.whatsapp.getWhatsAppBlockStatus({  query: {    accountId: 'account_abc123',    user: 'string',  },});console.log(data);

{
  "blocked": true
}

{
  "error": "Unauthorized"
}

Empty

Check if a user is blocked

Authorization

Query Parameters

Response Body

200application/json

401application/json

404

Check if a user is blocked

Authorization

Query Parameters

Response Body

200application/json

401application/json

404

application/json

application/json

application/json

application/json