Messages that reach your customers
Send and receive text messages through a REST API. Connect conversations to the application you already use.
Messaging APISend messages, share media, and receive real-time updates. Connect your WhatsApp numbers to a straightforward API, built for the way you work.
Free developer plan. No credit card required./api/send/text{
"to": "14155552671",
"text": "Your order is ready for collection."
}Works with the tools you know.
The building blocks for customer messaging, without a new stack to learn.
Send and receive text messages through a REST API. Connect conversations to the application you already use.
Messaging APIShare images, documents, video, and audio with a media request. Keep your customer informed in the right format.
Media endpointsManage WhatsApp sessions and group conversations from one workspace, with a dedicated API key for each channel.
Explore the referenceReceive incoming messages and delivery events at your endpoint. Use each notification directly in your application.
Webhook eventsScan the QR code from WhatsApp’s Linked Devices screen to pair your channel.
Get your channel API key and add a webhook URL to receive incoming events.
Send a JSON payload from your application. Use the response to track your message.
Standard HTTP. JSON payloads. A channel API key. Everything you need to start sending is in the documentation.
Explore the send endpointcurl -X POST "https://api.chatloophq.com/api/send/text" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"to": "14155552671",
"text": "Your order is ready for collection."
}'Test your integration for free, then choose the plan that fits your workload.
Full API functionality for testing and development, with usage limits applied.
A stable and reliable service for production workloads with priority support.
USD list prices. Paid plans renew at the selected billing interval. Applicable taxes and the final total are shown at checkout.
Pair your number using WhatsApp Linked Devices. This connection does not require Meta business verification. WhatsApp’s terms and messaging policies still apply.
Yes. ChatLoop HQ connects as a linked device. You can continue using WhatsApp on your phone and other linked devices, subject to WhatsApp’s device limits. Reconnect the channel if its session is revoked.
Any language that can make an HTTP request. The documentation includes cURL, JavaScript, Python, PHP, Java, and C# examples with API key authentication.
Start with the Free plan for development. Developer Pro has monthly and annual USD pricing, with no ChatLoop HQ per-message charge. See the pricing page for plan limits and the checkout total.
Create a workspace and send your first WhatsApp message.