WhatsApp API Integration
Integrate your business systems with WhatsApp. Send and receive messages, automate notifications, and manage customer conversations through a secure REST API, available to verified business accounts.
One API for Your WhatsApp Messaging
Our WhatsApp API lets your applications send and receive messages and manage customer conversations, without you having to build or maintain the messaging infrastructure yourself.
Verified Number Connection
Once your business account is approved, connect your WhatsApp Business number in minutes by scanning a QR code from your dashboard.
Send & Receive via REST API
Trigger text and media messages from your own systems with a single authenticated request, and receive every inbound message instantly as a webhook event.
Verified Business Accounts
Every application is manually reviewed against the business documents you submit before access is granted, keeping the platform limited to legitimate business use.
Multi-Account Management
Run several WhatsApp numbers under one account, with isolated sessions, separate API keys, and independent webhook configuration for each.
Secure, Scoped Access
Every integration is authenticated with a bearer API key tied to your account, so you can revoke or rotate access without disrupting the rest of your systems.
Built-In Testing Playground
Test message flows and webhook payloads directly from an admin dashboard before wiring anything into production code.
What Businesses Automate With It
From customer support to transactional alerts, WhatsApp is where your customers already are. Meet them there without adding manual work for your team.
Customer Support Automation
Answer common questions instantly and hand off to a human agent only when it's really needed.
Order & Delivery Updates
Automatically notify customers when an order is confirmed, dispatched, or delivered.
OTP & Account Alerts
Send one-time codes and security notifications through a channel customers actually check.
Appointment Reminders
Cut no-shows by reminding clients ahead of bookings, renewals, or payment due dates.
Feedback Requests
Ask for a review or feedback right after a purchase or a support interaction.
Internal Team Alerts
Push system events, form submissions, or monitoring alerts straight to your team's phones.
How It Works
Getting API access is an application process. It is designed to keep the platform limited to verified businesses.
Create Your Account
Sign up at macrasystems.com/wa with your email address, full name, and business or company name.
Verify Your Business
Upload your business permit or company registration certificate, and provide your WhatsApp Business number and a phone number we can reach you on.
Get Approved
Our team reviews every application against the submitted documents to confirm it belongs to a legitimate business.
Complete Onboarding
Once approved, pay the one-time onboarding fee at checkout to activate your account.
Connect & Integrate
Scan a QR code to link your number, then use your API key and webhook to start sending and receiving messages.
What you'll need to sign up
- Email address and full name
- Company or business name
- Business permit or company registration certificate
- Your WhatsApp Business number
- A phone number we can contact you on
Built for Developers
A clean, predictable REST API so your engineering team can integrate in hours, not weeks, once your account is approved.
Send a message with one request
Authenticate with your API key and post a JSON payload. No SDKs to install and no complex session handling on your side.
- JSON in, JSON out. No proprietary formats.
- Delivery status on request
- Text and media message support
- Inbound messages pushed to your webhook in real time
// Send a WhatsApp message POST https://macrasystems.com/wa/v1/messages/send Authorization: Bearer YOUR_API_KEY Content-Type: application/json { "to": "2547XXXXXXXX", "message": "Hi! Your order #4521 has shipped." }
Frequently Asked Questions
Who can sign up for this service?
Any registered business or company. As part of the application we require a valid business permit or company registration certificate, and every account is reviewed before it is approved.
How long does approval take?
Most applications are reviewed within a few business days once your documents and details have been submitted.
Is there a signup fee?
Yes. A one-time onboarding fee applies once your application is approved. You will complete payment at checkout before your API key is issued.
Can I connect it to my existing CRM or app?
Yes. It is a standard REST API with webhooks, so it integrates with any system that can make HTTP requests, from custom apps to CRMs and internal dashboards.
Can I see a contact's full message history?
Yes. Messages with each contact are grouped into a single conversation thread inside your dashboard, so your team has full context at a glance.
How many WhatsApp numbers can I connect?
As many as your plan allows. Each number runs as an isolated session with its own API key and webhook configuration.
Macra Systems' WhatsApp API is an independent messaging platform for verified businesses, built and operated by Macra Systems. It is not affiliated with, endorsed by, or an official product of WhatsApp or Meta Platforms, Inc. Access is granted only to reviewed, legitimate businesses, and accounts must be used in line with WhatsApp's own terms of service and applicable law.
Ready to Integrate WhatsApp Into Your Business?
Create an account, submit your business details, and our team will review your application for approval.