whatsapp-business

WhatsApp Business API integration with managed OAuth. Send messages, manage templates, and handle conversations. Use this skill when users want to interact with WhatsApp Business. For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway).

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Install skill "whatsapp-business" with this command: npx skills add maton/skill111

WhatsApp Business

Access the WhatsApp Business API with managed OAuth authentication. Send messages, manage message templates, handle media, and interact with customers through WhatsApp.

Quick Start

# Send a text message
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'messaging_product': 'whatsapp', 'to': '1234567890', 'type': 'text', 'text': {'body': 'Hello from WhatsApp Business!'}}).encode()
req = urllib.request.Request('https://gateway.maton.ai/whatsapp-business/v21.0/PHONE_NUMBER_ID/messages', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

https://gateway.maton.ai/whatsapp-business/{native-api-path}

Replace {native-api-path} with the actual WhatsApp Business API endpoint path. The gateway proxies requests to graph.facebook.com and automatically injects your OAuth token.

Authentication

All requests require the Maton API key in the Authorization header:

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

  1. Sign in or create an account at maton.ai
  2. Go to maton.ai/settings
  3. Copy your API key

Connection Management

Manage your WhatsApp Business OAuth connections at https://ctrl.maton.ai.

List Connections

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=whatsapp-business&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'whatsapp-business'}).encode()
req = urllib.request.Request('https://ctrl.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "connection": {
    "connection_id": "21fd90f9-5935-43cd-b6c8-bde9d915ca80",
    "status": "ACTIVE",
    "creation_time": "2025-12-08T07:20:53.488460Z",
    "last_updated_time": "2026-01-31T20:03:32.593153Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "whatsapp-business",
    "metadata": {}
  }
}

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple WhatsApp Business connections, specify which one to use with the Maton-Connection header:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'messaging_product': 'whatsapp', 'to': '1234567890', 'type': 'text', 'text': {'body': 'Hello!'}}).encode()
req = urllib.request.Request('https://gateway.maton.ai/whatsapp-business/v21.0/PHONE_NUMBER_ID/messages', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Maton-Connection', '21fd90f9-5935-43cd-b6c8-bde9d915ca80')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If omitted, the gateway uses the default (oldest) active connection.

API Reference

Messages

Send Text Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "recipient_type": "individual",
  "to": "1234567890",
  "type": "text",
  "text": {
    "preview_url": true,
    "body": "Hello! Check out https://example.com"
  }
}

Send Template Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "template",
  "template": {
    "name": "hello_world",
    "language": {
      "code": "en_US"
    },
    "components": [
      {
        "type": "body",
        "parameters": [
          {"type": "text", "text": "John"}
        ]
      }
    ]
  }
}

Send Image Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "image",
  "image": {
    "link": "https://example.com/image.jpg",
    "caption": "Check out this image!"
  }
}

Send Document Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "document",
  "document": {
    "link": "https://example.com/document.pdf",
    "caption": "Here's the document",
    "filename": "report.pdf"
  }
}

Send Video Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "video",
  "video": {
    "link": "https://example.com/video.mp4",
    "caption": "Watch this video"
  }
}

Send Audio Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "audio",
  "audio": {
    "link": "https://example.com/audio.mp3"
  }
}

Send Location Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "location",
  "location": {
    "latitude": 37.7749,
    "longitude": -122.4194,
    "name": "San Francisco",
    "address": "San Francisco, CA, USA"
  }
}

Send Contact Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "contacts",
  "contacts": [
    {
      "name": {
        "formatted_name": "John Doe",
        "first_name": "John",
        "last_name": "Doe"
      },
      "phones": [
        {"phone": "+1234567890", "type": "MOBILE"}
      ]
    }
  ]
}

Send Interactive Button Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "interactive",
  "interactive": {
    "type": "button",
    "body": {
      "text": "Would you like to proceed?"
    },
    "action": {
      "buttons": [
        {"type": "reply", "reply": {"id": "yes", "title": "Yes"}},
        {"type": "reply", "reply": {"id": "no", "title": "No"}}
      ]
    }
  }
}

Send Interactive List Message

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "to": "1234567890",
  "type": "interactive",
  "interactive": {
    "type": "list",
    "header": {"type": "text", "text": "Select an option"},
    "body": {"text": "Choose from the list below"},
    "action": {
      "button": "View Options",
      "sections": [
        {
          "title": "Products",
          "rows": [
            {"id": "prod1", "title": "Product 1", "description": "First product"},
            {"id": "prod2", "title": "Product 2", "description": "Second product"}
          ]
        }
      ]
    }
  }
}

Mark Message as Read

POST /whatsapp-business/v21.0/{phone_number_id}/messages
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "status": "read",
  "message_id": "wamid.xxxxx"
}

Media

Upload Media

POST /whatsapp-business/v21.0/{phone_number_id}/media
Content-Type: multipart/form-data

file=@/path/to/file.jpg
type=image/jpeg
messaging_product=whatsapp

Get Media URL

GET /whatsapp-business/v21.0/{media_id}

Delete Media

DELETE /whatsapp-business/v21.0/{media_id}

Message Templates

List Templates

GET /whatsapp-business/v21.0/{whatsapp_business_account_id}/message_templates

Query parameters:

  • limit - Number of templates to return
  • status - Filter by status: APPROVED, PENDING, REJECTED

Create Template

POST /whatsapp-business/v21.0/{whatsapp_business_account_id}/message_templates
Content-Type: application/json

{
  "name": "order_confirmation",
  "language": "en_US",
  "category": "UTILITY",
  "components": [
    {
      "type": "HEADER",
      "format": "TEXT",
      "text": "Order Confirmation"
    },
    {
      "type": "BODY",
      "text": "Hi {{1}}, your order #{{2}} has been confirmed!"
    },
    {
      "type": "FOOTER",
      "text": "Thank you for your purchase"
    }
  ]
}

Template categories: AUTHENTICATION, MARKETING, UTILITY

Delete Template

DELETE /whatsapp-business/v21.0/{whatsapp_business_account_id}/message_templates?name=template_name

Phone Numbers

Get Phone Number

GET /whatsapp-business/v21.0/{phone_number_id}

List Phone Numbers

GET /whatsapp-business/v21.0/{whatsapp_business_account_id}/phone_numbers

Business Profile

Get Business Profile

GET /whatsapp-business/v21.0/{phone_number_id}/whatsapp_business_profile?fields=about,address,description,email,profile_picture_url,websites,vertical

Update Business Profile

POST /whatsapp-business/v21.0/{phone_number_id}/whatsapp_business_profile
Content-Type: application/json

{
  "messaging_product": "whatsapp",
  "about": "Your trusted partner",
  "address": "123 Business St",
  "description": "We provide excellent services",
  "email": "contact@example.com",
  "websites": ["https://example.com"],
  "vertical": "RETAIL"
}

Code Examples

JavaScript

const headers = {
  'Authorization': `Bearer ${process.env.MATON_API_KEY}`,
  'Content-Type': 'application/json'
};

// Send text message
await fetch(
  'https://gateway.maton.ai/whatsapp-business/v21.0/PHONE_NUMBER_ID/messages',
  {
    method: 'POST',
    headers,
    body: JSON.stringify({
      messaging_product: 'whatsapp',
      to: '1234567890',
      type: 'text',
      text: { body: 'Hello from WhatsApp!' }
    })
  }
);

// Send template message
await fetch(
  'https://gateway.maton.ai/whatsapp-business/v21.0/PHONE_NUMBER_ID/messages',
  {
    method: 'POST',
    headers,
    body: JSON.stringify({
      messaging_product: 'whatsapp',
      to: '1234567890',
      type: 'template',
      template: {
        name: 'hello_world',
        language: { code: 'en_US' }
      }
    })
  }
);

Python

import os
import requests

headers = {
    'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}',
    'Content-Type': 'application/json'
}

# Send text message
response = requests.post(
    'https://gateway.maton.ai/whatsapp-business/v21.0/PHONE_NUMBER_ID/messages',
    headers=headers,
    json={
        'messaging_product': 'whatsapp',
        'to': '1234567890',
        'type': 'text',
        'text': {'body': 'Hello from WhatsApp!'}
    }
)

# Send template message
response = requests.post(
    'https://gateway.maton.ai/whatsapp-business/v21.0/PHONE_NUMBER_ID/messages',
    headers=headers,
    json={
        'messaging_product': 'whatsapp',
        'to': '1234567890',
        'type': 'template',
        'template': {
            'name': 'hello_world',
            'language': {'code': 'en_US'}
        }
    }
)

Notes

  • Phone numbers must be in international format without + or leading zeros (e.g., 1234567890)
  • messaging_product must always be set to whatsapp
  • Template messages are required for initiating conversations (24-hour messaging window)
  • Media files must be publicly accessible URLs or uploaded via the Media API
  • Interactive messages support up to 3 buttons or 10 list items
  • Message IDs (wamid) are used to track message status and replies
  • API version v21.0 is current; check Meta docs for latest version
  • IMPORTANT: When using curl commands, use curl -g when URLs contain brackets (fields[], sort[], records[]) to disable glob parsing
  • IMPORTANT: When piping curl output to jq or other commands, environment variables like $MATON_API_KEY may not expand correctly in some shell environments. You may get "Invalid API key" errors when piping.

Error Handling

StatusMeaning
400Missing WhatsApp Business connection or invalid request
401Invalid or missing Maton API key
404Phone number or resource not found
429Rate limited (10 req/sec per account)
4xx/5xxPassthrough error from WhatsApp Business API

Common error codes from WhatsApp:

  • 131030 - Phone number not registered
  • 131031 - Message failed to send
  • 132000 - Template not found or not approved
  • 133010 - Phone number rate limit reached

Troubleshooting: API Key Issues

  1. Check that the MATON_API_KEY environment variable is set:
echo $MATON_API_KEY
  1. Verify the API key is valid by listing connections:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Troubleshooting: Invalid App Name

  1. Ensure your URL path starts with whatsapp-business. For example:
  • Correct: https://gateway.maton.ai/whatsapp-business/v21.0/PHONE_NUMBER_ID/messages
  • Incorrect: https://gateway.maton.ai/v21.0/PHONE_NUMBER_ID/messages

Resources

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