Send SMS, RCS, and WhatsApp messages through a single unified REST API. The Qlara Partner Gateway handles delivery, fallback, campaign management, and real-time tracking — so you can focus on building your product.
Jump to the Quick Start guide and send your first message in under 3 minutes.
How It Works
- Authenticate — get your API key from the dashboard and include it in the
X-Api-Key header
- Choose a Channel — SMS for universal reach, RCS for rich media on Android, WhatsApp for high engagement
- Send & Track — dispatch messages and monitor delivery via webhooks or polling
The platform supports automatic fallback: if WhatsApp delivery fails, the system tries RCS, then SMS — ensuring your message always reaches the recipient.
Getting Started
| Guide | Description |
|---|
| Introduction | Platform overview, architecture, and key concepts |
| Quick Start | Send your first SMS, RCS, or WhatsApp message in 3 minutes |
| Authentication | API Key, Basic Auth, and IP Whitelist setup |
Guides
| Guide | Description |
|---|
| Messaging Channels | Compare SMS, RCS, and WhatsApp — features, use cases, and selection guidance |
| Webhooks | Real-time delivery notifications, payload structure, and receiver examples |
| Campaigns | Create, schedule, and track bulk messaging campaigns |
API Reference
Every endpoint includes code examples in cURL, Python, Node.js, PHP, Java, C#, Go, and Ruby.
SMS
| API | Description |
|---|
| SMS REST API | Modern REST endpoint with placeholders, scheduling, and simulation |
| SMS Legacy API | Batch sending via legacy HTTP API — backward-compatible |
| SMPP Protocol | Binary protocol over TLS for high-throughput delivery |
| Inbound SMS | Receive messages via email or HTTP webhook |
RCS
| API | Description |
|---|
| RCS API | Rich messages with images, cards, carousels, and interactive buttons |
| RCS Templates | Create reusable templates — TEXT, CARD, CAROUSEL with SMS fallback |
WhatsApp
| API | Description |
|---|
| WhatsApp API | Template-based and free-form messaging via Meta's platform |
Network Services
| API | Description |
|---|
| Credit Check | Query account balance in real time |
| MNP Lookup | Carrier, porting status, and network details for any mobile number |
| Resource | Description |
|---|
| AI Integration | Use our docs with ChatGPT, Claude, Copilot, Cursor |
| llms.txt | Machine-readable API overview (2 KB) |
| llms-full.txt | Complete docs in a single file (~180 KB) |
| FAQ | Common questions about authentication, sending, templates, and webhooks |
Authentication
All APIs authenticate via the X-Api-Key header. See the Authentication Guide for details.
| Method | Header | Used By |
|---|
| API Key | X-Api-Key: your-key | All APIs (recommended) |
| Basic Auth | Authorization: Basic base64(user:pass) | Legacy SMS, Credit Check, MNP |
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