I Automated 50 WhatsApp Groups With This Simple API Hack Copy My Exact Code

August 20, 2025

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Learn everything you need to know about managing, automating and sending messages on WhatsApp Groups in 2025. Includes ready-to-use code examples!

This tutorial will explore all the possible use cases for WhatsApp Groups automation using the API — code examples included.

🤩 🤖 Wassenger is a complete communication platform and API solution for WhatsApp. Explore more than 100+ API use cases and automate anything on WhatsApp by signing up for a free trial and get started in minutes!

# Create a new group chat

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the POST method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use body in JSON format

{
  "name": "Group name",
  "description": "This is a group sample description",
  "participants": [
    {
      "phone": "+12345678900",
      "admin": true
    },
    {
      "phone": "+12345678901",
      "admin": false
    }
  ],
  "permissions": {
    "edit": "admins",
    "send": "all",
    "invite": "admins",
    "approval": false
  }
}

🖥️ Looking for a code example? Go to the API live tester and get ready-to-use code examples in 15+ programming languages, including Python, JavaScript, PHP, C#, Java, Ruby, Go, Powershell, cURL and more.

# Get a list of available group chats

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the GET method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

🤩 🤖 Wassenger is a complete API solution for WhatsApp. Sign up for a 7-day free trial and get started in minutes!

# Update group information and permissions

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the PATCH method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use body in JSON format

{
  "name": "New group name",
  "description": "This is a new group sample description",
  "ephemeral": "7d",
  "permissions": {
    "edit": "admins",
    "send": "all",
    "invite": "all",
    "approval": false
  }
}

# Update group image

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the PUT method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/image

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use body in JSON format

{
  "url": "https://picsum.photos/200"
}

# Add participants to a group

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the POST method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/participants

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use body in JSON format

{
  "participants": [
    {
      "phone": "+1234567890",
      "admin": true
    },
    {
      "phone": "+1234567890",
      "admin": false
    }
  ]
}

🤩 🤖 Wassenger is a complete API solution for WhatsApp. Sign up for a 7-day free trial and get started in minutes!

# Remove participants from a group

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the DELETE method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/participants

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use body in JSON format

['+1234567890', '+1234567890'];

# Promote participants as administrators in a group chat

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the PATCH method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/participants

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use body in JSON format

{
  "participants": [
    {
      "phone": "+1234567890",
      "admin": true
    },
    {
      "phone": "+1234567890",
      "admin": true
    }
  ]
}

🖥️ Looking for a code example? Go to the API live tester and get ready-to-use code examples in 15+ programming languages, including Python, JavaScript, PHP, C#, Java, Ruby, Go, Powershell, cURL and more.

# Demote participants as administrators in a group chat

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the PATCH method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/participants

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use body in JSON format

{
  "participants": [
    {
      "phone": "+1234567890",
      "admin": false
    },
    {
      "phone": "+1234567890",
      "admin": false
    }
  ]
}

🤩 🤖 Wassenger is a complete API solution for WhatsApp. Sign up for a 7-day free trial and get started in minutes!

# Get pending approvals for new group members

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the GET method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/members

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

# Approve group members by phone number

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the POST method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/members

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use the body in JSON format

{
  "phones": ["+1234567890"]
}

🤩 🤖 Wassenger is a complete API solution for WhatsApp. Sign up for a 7-day free trial and get started in minutes!

# Approve all pending group members

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to numbers settings > Groups > Copy the Group WID.
  2. API: query the available groups for your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the POST method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/members

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use the body in JSON format

{
  "all": true
}

# Reject group members by phone number

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to numbers settings > Groups > Copy the Group WID.
  2. API: query the available groups for your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the DELETE method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/members

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use the body in JSON format

{
  "phones": ["+1234567890"]
}

🤩 🤖 Wassenger is a complete API solution for WhatsApp. Sign up for a 7-day free trial and get started in minutes!

# Reject all pending group members

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to numbers settings > Groups > Copy the Group WID.
  2. API: query the available groups for your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the DELETE method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/members

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use the body in JSON format

{
  "all": true
}

# Get group invite code and URL

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to numbers settings > Groups > Copy the Group WID.
  2. API: query the available groups for your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the GET method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/invite

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

🤩 🤖 Wassenger is a complete API solution for WhatsApp. Sign up for a 7-day free trial and get started in minutes!

# Revoke group invite code

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to numbers settings > Groups > Copy the Group WID.
  2. API: query the available groups for your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the DELETE method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups/{groupId}/invite

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

# Join a group by invitation code

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to numbers settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the PUT method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use the body in JSON format

{
"code": "{{GROUP INVITE CODE}}", 
"url": "{{GROUP INVITE URL}}"
}

Replace the following expressions with an actual value:

  • {{GROUP INVITE CODE}} Replace this expression with the specific value
  • {{GROUP INVITE URL}} Replace this expression with the correct value

# Leave a group

Requirements

  • Have a WhatsApp number already linked to the platform and online.
  • Get your Wassenger API key here.
  • Group WhatsApp ID (WID) that you can find in two ways:

How to obtain the Group WhatsApp ID

You can obtain the Group WhatsApp ID by using one of these methods:

  1. Web: go to number’s settings > Groups > Copy the Group WID.
  2. API: query the available groups in your number using this endpoint.

API endpoint

We will use the following API endpoint to create the group:

Prepare the request

Target API URL using the DELETE method

Test the API directly on your browser clicking here

https://api.wassenger.com/v1/devices/{deviceId}/groups

Required HTTPS headers > Obtain your API key here

Content-Type: application/json
Token: $API_TOKEN

Use the body in JSON format

{
"id": "$GROUP_ID@g.us", 
"remove": true
}

🤩 🤖 Wassenger is a complete API solution for WhatsApp. Sign up for a 7-day free trial and get started in minutes!

Live API testing

You can live-test and play with the API directly from your browser.

Once you are done testing, get the auto-generated code example in your preferred programming language and you will be ready to go.

Try our API-Live tester now

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