Webloom WhatsApp
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Trusted WhatsApp messaging infrastructure

Powerful WhatsApp API
Built for Modern Businesses

Connect WhatsApp, send messages, media and contacts, and integrate WhatsApp communication into your applications — with pacing and safeguards built in to protect your numbers.

Get Started API Documentation
6 live API endpoints Rate-limited & paced sends Multi-account merchant support
①
Your AppCalls the Webloom API
↓
②
Webloom GatewayAuth, quota & pacing
↓
③
WhatsApp NumberMessage delivered
↓
✓
Your CustomerReceives it on WhatsApp
Features

Everything you need to message on WhatsApp

A complete toolkit for sending text, media, contacts and interactive messages — safely and reliably.

⚡

Simple REST API

Plain GET or POST requests with a single API key — no SDK required, works from any language.

🛡

Account Safety Pacing

Randomized send delays protect your WhatsApp numbers from bulk-sending risk.

📎

Media & Contacts

Send images, video, documents and WhatsApp contact cards, not just text.

📊

Bulk & Excel Sending

Send to a comma-separated list or upload a spreadsheet, with live validation and progress.

👥

Multi-Account Merchants

Each merchant manages their own WhatsApp numbers, fully isolated from other accounts.

📈

Usage & History

Track daily usage against your quota and review message history per number.

How It Works

Connected in three steps

1

Connect your number

Scan a QR code to link your WhatsApp number to Webloom — no app installs required.

2

Get your API key

Every connected number gets its own secure API key for authenticating requests.

3

Start sending

Call the API from your app, or send directly from your Webloom dashboard.

Developer API

A complete WhatsApp API

Every endpoint shares the same simple authentication and response format.

POST / GET

/send-message

Send a plain text message to any WhatsApp number.

POST / GET

/send-media

Send images, video, audio or documents from a URL.

POST / GET

/send-vcard

Send a WhatsApp contact card (vCard) to a recipient.

POST / GET

/send-buttons

Send a message with quick-reply options, a website link and a call number.

POST

/generate-qr

Generate a pairing QR code for a registered device.

GET

/info-device

Check a device's connection status and profile info.

View Full API Documentation
Use Cases

Built for real business messaging

🛒

E-Commerce

Order confirmations & shipping updates

🎧

Customer Support

Fast, direct conversations with customers

📣

Marketing

Announcements & promotional campaigns

📅

Appointments

Booking confirmations & reminders

Why Webloom

Built with your WhatsApp number's safety in mind

✓
Pacing by designRandomized delays between sends, not instant bulk blasts.
✓
Per-device quotasDaily sending limits keep usage within safe patterns.
✓
Merchant isolationEvery account only ever touches its own WhatsApp numbers.
✓
Simple, honest APIClear responses, clear errors, no surprises.
FAQ

Frequently asked questions

Do I need to install anything?+

No. You connect your WhatsApp number once by scanning a QR code, then send messages through the API — no app installation needed on your server.

Is there a daily sending limit?+

Yes, each connected number has a daily quota, and sends are automatically paced to protect your account from bulk-sending risk.

Can I manage multiple WhatsApp numbers?+

Yes — merchant accounts can connect up to 3 WhatsApp numbers, each with its own status, history and API key.

Can I send to a list of numbers at once?+

Yes — paste a comma-separated list or upload an Excel/CSV file, preview who will receive it, then send with live progress tracking.

Ready to start messaging on WhatsApp?

Connect your WhatsApp number and send your first message in minutes.

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