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POST
/
instances
/
{instanceId}
/
token
/
{token}
/
reply-button
Reply to button list
curl --request POST \
  --url https://api.z-api.io/instances/{instanceId}/token/{token}/reply-button \
  --header 'Client-Token: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phone": "<string>",
  "responseButtonId": "<string>",
  "messageId": "<string>"
}
'
{
  "zaapId": "<string>",
  "messageId": "<string>",
  "id": "<string>"
}

Documentation Index

Fetch the complete documentation index at: https://developer.z-api.io/llms.txt

Use this file to discover all available pages before exploring further.

​
Concept

This endpoint allows you to reply to a button list option, simulating a user click on one of the options previously sent via send-button-list.
The button must have been previously sent and the button ID must be obtained via the message received webhook.

​
Attributes

​
instanceId
string
required
Your instance ID. Available in the Z-API panel under Instances.
​
token
string
required
Your Z-API instance token.

​
Required

​
phone
string
required
Phone number (or group ID) in the format COUNTRY CODE + AREA CODE + NUMBER. Example: 551199999999
​
responseButtonId
string
required
Selected button ID. This ID is obtained via the message received webhook.
​
messageId
string
required
ID of the message that contains the previously sent buttons.

​
Request Body

{
  "phone": "5511999999999",
  "responseButtonId": "1",
  "messageId": "D241XXXX732339502B68"
}

​
Response

​
200

​
zaapId
string
Message ID in Z-API
​
messageId
string
Message ID in WhatsApp
​
id
string
Added for Zapier compatibility, it has the same value as messageId
{
  "zaapId": "3999984263738042930CD6ECDE9VDWSA",
  "messageId": "D241XXXX732339502B68",
  "id": "D241XXXX732339502B68"
}

​
405

Make sure you are using the correct HTTP method (POST).

​
415

Make sure to include the Content-Type: application/json header.