Developers
Make messaging part of your product.
One API call reaches every connected channel. Webhooks tell you what happened next.
POST/api/v1/messages/send
{
"contact": "customer_1024",
"message": "Your order is ready!",
"channels": [
"whatsapp",
"sms",
"email"
],
"campaign": "order_ready"
}REST API
Messages, contacts, campaigns and templates.
SDKs
Official clients for Node.js and Python.
Sandbox keys
Test against real APIs without real sends.
Webhooks
Know the moment something happens.
Subscribe to message events and react in your own systems. Every webhook is signed and retried with backoff.
| Event | Sent when |
|---|---|
| message.sent | The provider accepted the message |
| message.delivered | The message reached the device or inbox |
| message.opened | An email was opened or a chat was read |
| message.clicked | A link in the message was clicked |
| message.replied | The contact replied on any channel |
| contact.unsubscribed | The contact opted out |
{
"event": "message.delivered",
"message_id": "msg_8f2a91",
"contact": "customer_1024",
"channel": "whatsapp",
"campaign": "order_ready",
"delivered_at": "2026-10-16T09:41:07Z"
}
Security
Customer data stays protected at every step.
Messaging touches your most personal data, so security is part of the platform rather than an add-on.
Encrypted everywhereTLS in transit and AES-256 at rest.
Access you controlRoles, SSO and per-workspace API keys.
Full audit logEvery change to campaigns and contacts is recorded.
Consent built inOpt-ins and opt-outs are enforced on every send.
Your customers are everywhere. Reach them anywhere.
Connect your CRM, create your first campaign and experience a unified communication platform built for modern businesses.