Add to Blacklist

PUT

Block a contact.

API endpoint

https://waclient.com/api/add_to_blacklist

Example:

curl -X PUT \
  'https://waclient.com/api/add_to_blacklist' \
  -H 'Content-Type: application/json' \
  --data '{
    "contact_id": "20100981XXXX",
    "instance_id": "6A4B02A1XXXX",
    "access_token": "EMCUH3NQQK8YXXXX"
}'

Response

{
    "status": "success",
    "message": "Success",
    "data": {
        "blocked": true,
        "jid": "80316559523939XXXX@lid",
        "contact_id": "20100981XXXX"
    }
}

Parameter	Description
contact_id	Phone or JID
instance_id	Your instance ID
access_token	Your access token

POST is also accepted as an alternative to PUT. WhatsApp may reject some block requests; the API resolves LID automatically when possible.

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