REST API
Send messages with a simple HTTP request. JSON or query parameters — integrate in minutes with any language or platform.
WhatsApp automation, simplified
Send WhatsApp messages
Send WhatsApp messages
via API & automation
Connect your apps to WhatsApp with a simple REST API. Create agents, install the Chrome extension, and start sending messages to individuals and groups — at scale.
REST API ready
Individual & group chats
File attachments
Messages sent12,847
Active agents3
Order #4821 confirmed ✓
Thanks! When will it ship?
Expected delivery: Tomorrow
REST API
Live messaging
Secure by design
Your WhatsApp stays on
Your WhatsApp stays on
your machine
-
Runs in your browser WhatsApp Web and the extension operate locally on your computer — not on our servers.
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No chats sent to the server Your message history, contacts, and media are never uploaded or stored by WhatsApi.
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Only outbound messages pass through The API delivers your send requests to the extension over secure SSL/TLS — backed by Google Cloud infrastructure. Nothing else is sent to or stored on the server.
Your Browser
Local & Private
WhatsApp Web session
Contacts & chat history
WhatsApi Chrome Extension
Stays on your device
SSL encrypted request
Chat history never leaves
WhatsApi API
SSL · Google Cloud
Outbound message payload
SSL/TLS encrypted transit
Chat history & contacts
Incoming messages
Features
Everything you need to automate WhatsApp
From a single API call to full campaign automation — WhatsApi handles the heavy lifting so you can focus on your product.
Agent System
Create secure agents that act as middleware between your API calls and WhatsApp. Each agent gets a unique device ID.
Chrome Extension
Install the WhatsApi plugin in Chrome to bridge your dashboard agents with WhatsApp Web — no complex setup required.
Individual & Group
Reach a single contact or broadcast to entire groups. Flexible chat types for every use case.
File Attachments
Send documents, images, and media alongside your messages. Full support for filenames, types, and URLs.
Secure & Reliable
Your agents are tied to your account. Built-in status checks, error codes, and real-time delivery tracking.
How it works
Up and running in three steps
No complicated infrastructure. Connect WhatsApp to your stack in minutes.
Create an Agent
Sign in to the dashboard and create a secure agent. You'll receive a unique device ID like WA0000XXXXX.
Install the Extension
Add the WhatsApi Chrome plugin and link it to your agent. It connects WhatsApp Web to your dashboard.
Send via API
Make a POST request to /v1/whatsapp/send with your agent ID, recipient, and message. Done.
Developer friendly
One API call.
One API call.
Instant delivery.
Integrate WhatsApp messaging into your CRM, e-commerce store, notification system, or any app — with a single HTTP request.
Explore the API
curl
curl -X POST \
"https://api.messenger.finitechat.com/v1/whatsapp/send" \
-H "Content-Type: application/json" \
-d '{
"agent": "WA000012345",
"chat": "+919876543210",
"chattype": "individual",
"message": "Hello from WhatsApi!"
}'