The HostGrap WhatsApp API lets your website, app or business system send and receive WhatsApp messages automatically, from LKR 1,000 a month. Every plan includes one WhatsApp connection with unlimited conversations and messages, WooCommerce and WHMCS integration, a simple API with documentation, and instant activation. Send order updates, support replies, images, voice messages, polls and statuses from your own tools.
Send WhatsApp messages from your website, app or system through a simple API.
Send WhatsApp messages from your website, app or system through a simple API.
| Feature | WhatsApp API |
|---|---|
| Monthly price | LKR 1,000 |
| Yearly price | LKR 9,000 |
| WhatsApp connections | 1 |
| Conversations | Unlimited |
| Messages | Unlimited |
| WooCommerce integration | Included |
| WHMCS integration | Included |
| API access | Included |
| API documentation | Included |
| Activation | Instant |
| Images | Included |
| Voice messages | Included |
| Links with custom preview | Included |
| Polls | Included |
| Statuses | Post and delete |
A WhatsApp API is a way for software to send and receive WhatsApp messages without a person typing them. Your website, online store, billing system or app sends a short request to the API, and the message arrives in your customer's WhatsApp chat a moment later.
Businesses use it to send order confirmations, delivery updates, invoices, payment reminders, appointment reminders and support replies on the app their customers already use every day. The HostGrap WhatsApp API is built for businesses in Sri Lanka and around the world, from small online shops to developers building their own systems.
The HostGrap WhatsApp API costs LKR 1,000 a month, or LKR 9,000 a year, which saves you 25%. Prices are in Sri Lankan rupees.
Every plan includes one WhatsApp connection with unlimited conversations and unlimited messages, so you do not pay per message. You also get WooCommerce and WHMCS integration, the full API with documentation, and every messaging feature, including images, voice messages, link previews, polls and statuses.
You can connect WhatsApp to your online store, support desk or billing system without writing custom code. Sync orders from WooCommerce so customers get a WhatsApp message when they order and when their parcel ships, and send invoices and renewal reminders through WHMCS so fewer payments are missed.
With one API connection, your business can send and receive unlimited messages and keep every conversation in one place. The API also works with chatbots and with teams of several support agents, so messages can reach the right person.
// Send a WhatsApp message
POST /api/v1/messages
{
"to": "+94771234567",
"type": "text",
"message": "Your order has shipped!"
}
// Response
{
"status": "sent",
"message_id": "wamid.HBg..."
}The API is made to be easy for developers. Clear endpoints let you send messages, manage contacts and handle incoming replies, and the documentation includes ready-to-use code examples, authentication guides and webhook setup, so your developers can add WhatsApp to any application without guesswork.
You can also send links with a custom preview, so a product page or an invoice link shows its own title and picture in the chat.
# Send a WhatsApp image
curl -X POST https://your-api-domain.com/api/send-image.php \
-d "[email protected]" \
-d "api_key=YOUR_API_KEY" \
-d "phone=947XXXXXXXX" \
-d "image_url=https://example.com/receipt.jpg" \
-d "caption=Thank you for your order"
# Response
{ "status": "sent", "message_id": "wamid.HBg..." }Send product photos, receipts, tickets or visual updates straight into a customer's WhatsApp chat. Pass your account email, your API key, the customer's number and a link to the image, with an optional caption to add context.
| Field | What it is |
|---|---|
email | Your registered account email |
api_key | Your unique API key |
phone | The customer's number, such as 947XXXXXXXX |
image_url | A public link to the image |
caption | Optional text shown with the image |
# Send a WhatsApp voice message
curl -X POST https://your-api-domain.com/api/send-voice.php \
-d "[email protected]" \
-d "api_key=YOUR_API_KEY" \
-d "phone=947XXXXXXXX" \
-d "audio_url=https://example.com/welcome.mp3"
# Response
{ "status": "sent", "message_id": "wamid.HBg..." }Some messages are easier to hear than to read. Send a voice note to your customers with one API call by passing your account email, your API key, the customer's number and a link to the audio file. The API formats the audio and delivers it as a WhatsApp voice message.
Ask customers a question inside the chat and let them answer with one tap. Send a question and a list of options separated by commas, and customers vote right from the conversation. Polls work well for delivery times, feedback, event sign-ups and quick surveys.
# Send a WhatsApp poll
curl -X POST https://your-api-domain.com/api/send-poll.php \
-d "[email protected]" \
-d "api_key=YOUR_API_KEY" \
-d "phone=947XXXXXXXX" \
-d "question=Which delivery time suits you?" \
-d "options=Morning,Afternoon,Evening"# Post a WhatsApp text status
curl -X POST https://your-api-domain.com/api/status/send-text.php \
-d "[email protected]" \
-d "api_key=YOUR_API_KEY" \
-d "text=New stock just arrived"
# Response
{ "status": "posted", "status_id": "sid.HBg..." }Publish a text status to your WhatsApp account from your own system, for example to announce a sale, new stock or opening hours. Send your account details with the text you want, and it is posted to your status straight away. You can also delete a status through the API when it is no longer needed.
The HostGrap WhatsApp API runs with 99.9% API uptime and an average delivery time of under one second, with unlimited messages and conversations. Whether you are a developer building a custom integration or a shop owner connecting WooCommerce and WHMCS, you get a fast, dependable way to reach customers.
For the best results, message people who have agreed to hear from you, such as your customers and people who contacted you first. Useful, expected messages get read and answered, and they keep your WhatsApp number in good standing.
HostGrap AI, our support agent on live chat and WhatsApp, answers at any hour in English, Sinhala or Singlish. It can explain the API, help you connect WooCommerce or WHMCS, and restart your WhatsApp session if it drops, and it brings in our support team when a person is needed.
Our team works 8am to 10pm on weekdays and 8am to 9pm at weekends, Sri Lanka time. When a problem needs a closer look, HostGrap AI hands the conversation to our team with a full summary, so you don't have to explain it twice.
Your own business number
And unlimited conversations
Order updates sent automatically
Invoices and renewal reminders
With documentation and code examples
Send media straight to the chat
Ask questions and post updates
Start sending the same day
HostGrap AI at any hour, and our team every day
Still have a question?Our team answers on WhatsApp and by phone.
Chat on WhatsAppThe WhatsApp API costs LKR 1,000 a month or LKR 9,000 a year, which saves 25%. Every plan includes one WhatsApp connection with unlimited conversations and messages.
A WhatsApp API lets your website, store, billing system or app send and receive WhatsApp messages automatically, such as order updates, invoices, reminders and support replies.
No. Every plan includes unlimited conversations and unlimited messages on your WhatsApp connection, so you do not pay per message.
Yes. You can sync WooCommerce orders to send order and shipping updates, and send WHMCS invoices and renewal reminders on WhatsApp, without writing custom code.
You can send text messages, images with captions, voice messages, links with a custom preview and polls, and you can post and delete WhatsApp statuses.
Messages are delivered in under one second on average, and the API runs with 99.9% uptime.
Order a plan and activation is instant. You get your API key, connect your WhatsApp number, and follow the documentation, which includes code examples, authentication guides and webhook setup.
Ask HostGrap AI on live chat or WhatsApp and it can restart your WhatsApp session for you, at any hour.
You can pay by credit or debit card, or by bank transfer, monthly or yearly. Prices are shown in Sri Lankan rupees.
Tell HostGrap AI what you need and it suggests the right plan, at any hour.