WhatsApp API Solution

Take your business communication to the next level with HashNET’s robust WhatsApp API Solution. Whether you’re a small business or an enterprise, our API gateway empowers you with unlimited messaging, automated broadcasts, and full integration capabilities — all starting from just 2,250 LKR ($7.5) a month!

Key Features

Our API gives your business direct access to WhatsApp — one of the world’s most-used messaging platforms — through a secure and scalable system designed for marketing, support, and engagement. HashNET Sender ensures a seamless and cost-effective messaging experience with:

Unlimited WhatsApp Messages

File Attachments (Images, PDFs, etc.)

Unicode Support (Tamil, Sinhala, etc.)

Large Message Content (No word limits)

Full REST API Access for Integration

Affordable Local Pricing Plans

Who is it for?

Marketing Agencies

sending bulk campaigns

E-commerce Stores

sending order alerts

Educational Institutions

delivering notifications

Healthcare Providers

sending appointment reminders

Banks & FinTech

delivering secure OTPs

Developers

building automation or integrating WhatsApp into systems

Pricing Plans

LKR 2250 $7.5

Unlimited Messages
All Features
01 Month

LKR 3650 $12

Unlimited Messages
All Features
02 Months

LKR 5250 $17.5

Unlimited Messages
All Features
03 Months

LKR 8450 $28

Unlimited Messages
All Features
06 Months

LKR 14450 $48

Unlimited Messages
All Features
12 Months

Best Value: M12 Plan saves you up to 30% over monthly billing!

How It Works

Step 01

Sign Up

for your preferred API solution plan

Step 02

Scan

and connect your WhatsApp to the system

Step 03

Start

Sending Messages via API, your own system, or our easy-to-use dashboard

Frequently Asked Questions (FAQ's)

What is an API?

API stands for Application Programming Interface. It’s a set of tools and protocols that allows two software applications to communicate with each other. In this case, our WhatsApp API lets your software (like a website, CRM, or app) connect with WhatsApp to send and receive messages automatically — without needing to manually open the WhatsApp app.

What is the WhatsApp API Solution by HashNET Sender?

The WhatsApp API Solution is a powerful tool that lets businesses send unlimited WhatsApp messages through a programmable API. You can send text, files, Unicode content, and large messages seamlessly via your own system, CRM, or using our web dashboard.

How do I get started with the API?

It’s simple:

Sign up for a plan
Scan a QR code to connect your mobile device
Start sending messages via our API or dashboard — no demo or manual setup needed.

Do I need a verified WhatsApp Business account?

No, you do not need a verified WhatsApp Business API number. Our solution works by connecting your own WhatsApp number securely to our gateway using a QR code scan.

Is there any message limit?

No. All plans come with unlimited messages. You can send as many messages as you like — no per-message fees or quotas.

Can I send media files like PDFs, images, or documents?

Yes, the API supports file attachments such as:

PDF documents
Images (JPG, PNG)
Videos
Voice notes
Microsoft Office files (DOCX, XLSX, etc.)

Does the API support local languages like Sinhala or Tamil?

Absolutely! The API supports Unicode, which means you can send messages in Sinhala, Tamil, Arabic, Hindi, and other languages without issue.

Can I integrate the API with my own software or website?

Yes. Full REST API access is provided with every plan. You can integrate it into:

CRMs & ERPs
Websites
Chatbots
E-commerce platforms
Custom internal systems

We also provide sample code, API documentation, and Postman collections to speed up your integration.

What devices are compatible with the system?

You can use any smartphone (usually Android) that has WhatsApp installed. There’s no special device or hosting needed.

We simply link your WhatsApp number to the API by scanning a QR code using the “Link Device” option in WhatsApp — just like linking it to WhatsApp Web.

Is my data secure?

Yes. We use secure and encrypted channels between your mobile and the API gateway. We do not store message content beyond system logs, and our platform is compliant with local data protection guidelines.

Are there any hidden fees or per-message costs?

No. All pricing is transparent and fixed based on your chosen plan duration. There are no per-message charges or hidden costs.

What happens if my mobile disconnects or goes offline?

You can use any smartphone (usually Android) that has WhatsApp installed. There’s no special device or hosting needed.

We simply link your WhatsApp number to the API by scanning a QR code using the “Link Device” option in WhatsApp — just like linking it to WhatsApp Web.

Can I upgrade or extend my plan later?

Yes. You can upgrade to a longer duration at any time. If you’re mid-plan, we can prorate the remaining period and apply it toward the new plan.

Do you offer technical support?

Yes. Our support team is available via WhatsApp to assist you with setup, integration, or any technical issues.

📞 Support: 075 2 334 334