Official WhatsApp Business Partner Integrate WhatsApp into your business in minutes. Send messages, manage conversations and embed our chat in your application with the Chat API APIs.
Chat API
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Secure and certified infrastructure
WhatsApp Partner Chat API is an API platform for businesses and developers that lets you send WhatsApp, SMS and email messages, manage conversations, templates, webhooks and chat widgets via REST APIs. It is designed to integrate transactional communications, notifications, customer support and commercial automations into applications, CRMs and e-commerce.
Chat API is built for software houses, SaaS, e-commerce, CRMs, contact centers, digital agencies and companies that want to automate WhatsApp, SMS and email communications without building a messaging infrastructure from scratch.
Companies that automate WhatsApp communications with AI see an average 40% increase in conversions. Less manual work, more sales.
AI automations 24/7
Abandoned cart recovery
Proactive notifications
Integrate CRM & e-commerce
98%
messages read
+40%
avg conversions
3×
customer retention
Figures based on WhatsApp Business messaging industry benchmarks and aggregated averages of Chat API customers. Results may vary depending on industry, volumes and automation quality.
WhatsApp API pricingMonthly revenue
Before and after WhatsApp API integration
+127%
revenue
A single API to send WhatsApp messages, SMS and emails, manage conversations and embed a chat in your application. Built by Roxpay, official WhatsApp partner.
JWT authentication, clear endpoints and complete documentation. Integrate in hours, not weeks.
Send pre-approved templates or freetext messages within active conversation windows.
Generate a WhatsApp chat iframe and embed it in your web application with a single API call.
Receive instant notifications on incoming messages, delivery status and conversation updates.
From transactional notifications to customer support, Chat API covers the communication scenarios most requested by businesses across Italy and Europe.
Order confirmations and shipping updates
Abandoned cart recovery
Appointment and deadline reminders
Customer support over WhatsApp
Lead qualification and sales automations
Transactional notifications from CRM, ERP or e-commerce
WhatsApp chat widget embedded in apps and dashboards
Generate a WhatsApp chat iframe and embed it in your web application with a single API call.
POST /api/v4/iframes/whatsapp/chat-box
Works in any web page, React, Vue, Angular app or vanilla HTML.
Messages are synchronized in real time via WhatsApp Business.
Desktop view
Embedded via iframe
Send WhatsApp messages to any contact via API. Supports text, media, templates and interactive messages.
View and use approved WhatsApp templates directly from our APIs. Customize variables on the fly.
Retrieve the list of active conversations and the message history for each contact.
Generate an iframe URL with a single API call and integrate WhatsApp chat into your app or website.
Configure webhooks to receive real-time events: incoming messages, read receipts and more.
Create, search and manage your contacts directly via the API. Sync with your CRM.
Sign up on Roxpay and generate your JWT token to access the Chat API APIs.
Use our RESTful APIs to send messages, manage chats or generate the iframe widget.
Test in the sandbox, then switch to production. Start communicating with your customers on WhatsApp.
Authenticate, send a message and handle the response. All via REST API.
curl -X POST \
https://app.roxpay.eu/api/v4/auth/token \
-H "Content-Type: application/json" \
-d '{
"email": "you@company.com",
"password": "your-password"
}'curl -X POST \
https://app.roxpay.eu/api/v4/whatsapp/chats/{ClientId}/message \
-H "Authorization: Bearer YOUR_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"message": "Hello from Chat API!"
}'curl -X GET \
https://app.roxpay.eu/api/v4/whatsapp/chats \
-H "Authorization: Bearer YOUR_TOKEN"curl -X POST \
https://app.roxpay.eu/api/v4/iframes/whatsapp/chat-box \
-H "Authorization: Bearer YOUR_TOKEN" \
-H "Content-Type: application/json"Developers can test Chat API in the sandbox, generate JWT tokens, send WhatsApp messages, retrieve conversations and receive real-time webhooks using documented REST endpoints compatible with modern stacks like Node.js, PHP, Python, Laravel, React, Vue and Angular.
A WhatsApp API lets businesses integrate WhatsApp into their software systems to send messages, receive replies, manage conversations, use approved templates and connect WhatsApp to CRMs, e-commerce, apps or customer support platforms.
WhatsApp APIYes. Chat API offers REST APIs, JWT authentication, real-time webhooks, a free sandbox, cURL examples and technical documentation to integrate WhatsApp, SMS, email and chat widgets into web or mobile applications.
API documentationChat API supports WhatsApp, SMS, email, webhooks and an embeddable chat widget. Businesses can use a single platform to send notifications, manage conversations and integrate messages into their software workflows.
all featuresNo. Chat API is a service by Roxpay, which is already an official WhatsApp Business Partner. You connect through our APIs without registering directly with Meta.
Yes. With a single API call you can generate an iframe URL that embeds the WhatsApp chat directly into your web or mobile application.
You can send WhatsApp-approved templates (for out-of-window messages) and freetext messages within active 24-hour conversation windows.
Yes. Chat API provides a sandbox environment at sandbox.roxpay.eu where you can test all APIs before going to production.
The APIs use JWT Bearer tokens. Generate your token via the /api/v4/auth/token endpoint and include it in the Authorization header of every request.
WhatsApp API Start using the Chat API APIs for free. No credit card required for the sandbox.