SMS API Integration: Developer's Quick Start Guide
How to integrate SMS into your application via API.
SMS API Integration
Integrate SMS into your app with our simple REST API.
Quick Start
1. Get Your API Key
Sign up and navigate to Settings → API Keys → Create New Key
2. Send Your First Message
Simple POST request:
POST /api/v1/messages
Authorization: Bearer YOUR_API_KEY
{ "to": "+1234567890", "message": "Hello!" }
3. Handle the Response
Success response includes message ID for tracking.
Key Endpoints
/messages - Send and retrieve messages
/contacts - Manage your contact list
/campaigns - Create and manage campaigns
/webhooks - Delivery status callbacks
Webhooks
Get real-time updates for:
Message delivered
Message failed
Reply received
Opt-out processed
Rate Limits
Starter: 10 requests/second
Growth: 50 requests/second
Enterprise: Custom