Conversations

Block / Unblock Contact

⚠️ WARNING: Blocks a contact. Do NOT use block: false . it may DISCONNECT the entire instance (known WhatsApp bug). To unblock, use WhatsApp itself.

POSThttps://api.zapzapapi.com/api/v1/{instanceId}/chat/block

Authentication with the x-api-key and x-api-secret headers.

Parameters

Name	Type	In	Required	Description
`number`	text	body	Yes	Number (with country code)
`block`	select	body	Yes	Action

Request example

curl

curl -X POST "https://api.zapzapapi.com/api/v1/{instanceId}/chat/block" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "x-api-secret: YOUR_API_SECRET" \
  -H "Content-Type: application/json" \
  -d '{"number":"5511999999999","block":true}'

Node.js

const res = await fetch("https://api.zapzapapi.com/api/v1/{instanceId}/chat/block", {
  method: "POST",
  headers: {
    "x-api-key": "YOUR_API_KEY",
    "x-api-secret": "YOUR_API_SECRET",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "number": "5511999999999",
    "block": true
  }),
});
console.log(await res.json());

Python

import requests

res = requests.post(
    "https://api.zapzapapi.com/api/v1/{instanceId}/chat/block",
    headers={"x-api-key": "YOUR_API_KEY", "x-api-secret": "YOUR_API_SECRET"},
    json={"number":"5511999999999","block":True},
)
print(res.json())

Response example

JSON

{
  "response": "Blocked successfully",
  "blockList": [
    "5511999999999@s.whatsapp.net"
  ]
}

Values are illustrative; the fields follow the real response format.

Other endpoints in this category

See the full reference

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