WapBridge | API Docs

Quick Start

1) Create an instance and connect WhatsApp.

2) Generate your API token from /settings.

3) Send your first message using the endpoint below.

Base URL
https://wapbrigde.com

Authentication

Use the token generated in Settings. Include it as a bearer token.

Authorization: token <API_KEY>:<API_SECRET>

Send Message

POST /api/method/wap_bridge.api.whatsapp.send_api_message

Body

from_number – WhatsApp number connected to your instance
to_number – destination number (with country code)
message – text content

curl -X POST https://wapbrigde.com/api/method/wap_bridge.api.whatsapp.send_api_message \
  -H "Authorization: token {{ api_key }}:{{ api_secret }}" \
  -H "Content-Type: application/json" \
  -d '{"from_number":"+255700000000","to_number":"+255755123456","message":"Hello from WapBridge"}'

Send Media

POST /api/method/wap_bridge.api.whatsapp.send_api_message

Body

from_number – WhatsApp number connected to your instance
to_number – destination number (with country code)
media_data – base64 file content (no data URL prefix)
mime_type – e.g. image/jpeg
filename – original file name
caption – optional text caption

curl -X POST https://wapbrigde.com/api/method/wap_bridge.api.whatsapp.send_api_message \
  -H "Authorization: token {{ api_key }}:{{ api_secret }}" \
  -H "Content-Type: application/json" \
  -d '{"from_number":"+255700000000","to_number":"+255755123456","caption":"Invoice attached","media_data":"<base64>","mime_type":"application/pdf","filename":"invoice.pdf"}'

Bulk Campaigns API

Use campaigns for throttled bulk sends. You can also manage this in /campaigns UI.

POST /api/method/wap_bridge.api.campaigns.create_and_start_campaign
POST /api/method/wap_bridge.api.campaigns.add_campaign_recipients
POST /api/method/wap_bridge.api.campaigns.campaign_status
POST /api/method/wap_bridge.api.campaigns.pause_campaign
POST /api/method/wap_bridge.api.campaigns.resume_campaign

Create & Start Campaign

POST /api/method/wap_bridge.api.campaigns.create_and_start_campaign

Body

instance_id – connected instance id (e.g. INST-04-0000186)
campaign_name – optional custom name
message – message text
recipients – dynamic numbers array

curl -X POST https://wapbrigde.com/api/method/wap_bridge.api.campaigns.create_and_start_campaign \
  -H "Authorization: token {{ api_key }}:{{ api_secret }}" \
  -H "Content-Type: application/json" \
  -d '{"instance_id":"INST-04-0000186","campaign_name":"Promo Batch A","message":"Hello from WapBridge","recipients":["255757111111","255757222222"]}'

Add Recipients Dynamically

POST /api/method/wap_bridge.api.campaigns.add_campaign_recipients

curl -X POST https://wapbrigde.com/api/method/wap_bridge.api.campaigns.add_campaign_recipients \
  -H "Authorization: token {{ api_key }}:{{ api_secret }}" \
  -H "Content-Type: application/json" \
  -d '{"campaign":"WAP-CAM-0001","recipients":[{"phone_number":"255757333333"},{"to_number":"255757444444"}]}'

Campaign Control

Status

curl -X POST https://wapbrigde.com/api/method/wap_bridge.api.campaigns.campaign_status \
  -H "Authorization: token {{ api_key }}:{{ api_secret }}" \
  -H "Content-Type: application/json" \
  -d '{"campaign":"WAP-CAM-0001"}'

Pause

curl -X POST https://wapbrigde.com/api/method/wap_bridge.api.campaigns.pause_campaign \
  -H "Authorization: token {{ api_key }}:{{ api_secret }}" \
  -H "Content-Type: application/json" \
  -d '{"campaign":"WAP-CAM-0001"}'

Resume

curl -X POST https://wapbrigde.com/api/method/wap_bridge.api.campaigns.resume_campaign \
  -H "Authorization: token {{ api_key }}:{{ api_secret }}" \
  -H "Content-Type: application/json" \
  -d '{"campaign":"WAP-CAM-0001"}'

ERPNext Notification Setup

Send ERPNext/Frappe Notification Channel = SMS through WapBridge WhatsApp gateway.

SMS Settings

SMS Gateway URL: https://wapbrigde.com/api/method/wap_bridge.api.whatsapp.erpnext_notification_gateway
Message Parameter: message
Receiver Parameter: to_number
Use POST: enabled

Static Parameters (SMS Settings)

Authorization (Header = 1): token <API_KEY>:<API_SECRET>
instance_id (Header = 0): INST-XX-XXXXXXXX (optional, recommended)

Notification

Create Notification, set Channel = SMS
Choose event and recipients (doc field/role)
Write Jinja message, e.g. {{ doc.name }}

Response

{
  "ok": true,
  "service": {
    "ok": true,
    "id": "true_1234567890"
  }
}

Webhooks

Configure your webhook URL in Settings. WapBridge will send inbound messages to your endpoint.

Header (optional)

X-Wapbridge-Secret: <your-secret>

Webhook Payload

{
  "instance_id": "INST-01-0000142",
  "customer": "CUST-0143",
  "phone_number": "255757197676",
  "message": {
    "id": "false_120542636048510@lid_A586DC71E697153420998E09871EA237",
    "from": "120542636048510@lid",
    "to": "255757197676@c.us",
    "body": "Sawa",
    "fromMe": false,
    "timestamp": 1767791640,
    "type": "image",
    "hasMedia": true,
    "caption": "Sawa",
    "media": {
      "mimetype": "image/jpeg",
      "filename": "photo.jpg",
      "data": "<base64>"
    }
  }
}

Send WhatsApp messages in minutes.