Nativevoicenotes.
Anyplatform.OneAPIcall.
A REST API for developers to programmatically send native voice notes across 9 messaging platforms. Add voice to your sales automation, CRM workflows, or outreach tools with a single endpoint.
50 free voice notes. No credit card required.
# Send a voice note with one API call
curl -X POST https://svarapi.io/api/v1/send \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{
"platform": "linkedin",
"recipient": "urn:li:member:123456",
"audio_url": "https://your-server.com/note.mp3"
}'{
"status": "delivered",
"message_id": "msg_7x9k2m",
"platform": "linkedin",
"delivered_at": "2026-03-14T12:00:03Z"
}One API, every platform
Send native voice notes across messaging platforms with a single endpoint. We handle the protocol differences.
Native blue waveform voice notes
Telegram
Official Bot API, OGG/OPUS delivery
Native voice notes via session-based delivery
Messenger
Meta Send API audio messages
Instagram Graph API audio DMs
Slack
Slack Web API audio file messages
Discord
Native voice messages with waveform
Viber
Viber Business Messages API
WeChat Official Account voice messages
How it works
Built for developers. Three steps to send your first voice note.
POST your audio
Send any audio file — MP3, M4A, WAV, OGG. Or record one with our free voice recorder. Try the recorder →
One API call
POST to /v1/send with platform, recipient, and session credentials.
Native delivery
Voice note appears as native in the recipient's inbox.
POST your audio
Send any audio file — MP3, M4A, WAV, OGG. Or record one with our free voice recorder. Try the recorder →
One API call
POST to /v1/send with platform, recipient, and session credentials.
Native delivery
Voice note appears as native in the recipient's inbox.
Why Svara?
Purpose-built for voice notes. No bloat, no per-account fees, no weeks of integration work.
| Feature | Svara | Unipile | DIY |
|---|---|---|---|
| Voice notes | Yes | Yes | Maybe |
| Pricing model | Per note | Per account | Engineering time |
| Setup time | 5 minutes | 1-2 days | 2-4 weeks |
| Focus | Voice only | Full messaging | Whatever you build |
| Cost for 2,000 notes/mo | $79/mo | $275/mo+ | Engineering time |
| Format conversion | Automatic | Automatic | Manual |
Simple, transparent pricing
Pay per voice note, not per connected account. Start free, scale as you grow.
Free
For testing and prototyping
50 voice notes total
- ✓50 voice notes total
- ✓All 9 platforms
- ✓Format conversion
- ✓API access
- ✓Email support
Starter
For indie developers and small projects
500 voice notes
$0.04 per additional note
Top up anytime at your plan rate. No upgrade required.
- ✓500 voice notes / month
- ✓All platforms
- ✓Format conversion
- ✓Delivery webhooks
- ✓Email support
Growth
For growing teams and products
2,000 voice notes
$0.03 per additional note
Top up anytime at your plan rate. No upgrade required.
- ✓2,000 voice notes / month
- ✓All platforms
- ✓Format conversion
- ✓Delivery webhooks
- ✓Priority support
Scale
For high-volume applications
10,000 voice notes
$0.015 per additional note
Top up anytime at your plan rate. No upgrade required.
- ✓10,000 voice notes / month
- ✓All platforms
- ✓Format conversion
- ✓Delivery webhooks
- ✓Dedicated support
Enterprise
Custom volume and SLA
- ✓Custom volume
- ✓All platforms
- ✓Custom SLA
- ✓Dedicated account manager
- ✓On-call support
Top-up credit packs
Need more notes for a busy month? Buy a one-time pack at your plan rate.
| Pack | Starter ($0.04) | Growth ($0.03) | Scale ($0.015) |
|---|---|---|---|
| 500 notes | $20 | $15 | $7.50 |
| 1,000 notes | $40 | $30 | $15.00 |
| 2,500 notes | $100 | $75 | $37.50 |
| 5,000 notes | $200 | $150 | $75.00 |
Top-up credits expire at the end of your billing period. They do not roll over.
Ready to send your first voice note?
50 free voice notes. No credit card required.