Send your first message
Get an API key and send a message in under five minutes.
What you can build
Transactional email
Receipts, password resets, and order confirmations with reliable delivery tracking.
SMS notifications
One-time codes, shipping updates, and alerts sent to any E.164 number.
Push notifications
Mobile push delivery using the same request shape as email and SMS.
Marketing campaigns
Manage contacts, lists, and unsubscribes without building your own suppression logic.
How it fits together
Messages
The core object — send one, track its status from
queued to delivered.Templates
Versioned content your application fills in with data instead of building HTML by hand.
Contacts & lists
Recipients and groups, with subscription state tracked automatically.
Webhooks
Real-time delivery, open, click, and bounce events pushed to your server.
Reference
API reference
Every endpoint, request, and response field.
SDKs
Official client libraries for Node.js and Python.
Authentication
API keys, scopes, and live vs. test mode.
Errors
Error types, codes, and how to handle them.