Communication infrastructure for AI
Build and deploy AI agents that communicate with millions of your customers in minutes, not months.
SPEAK TO US
Enter your number. Matt calls you in under a minute.
Every channel
One agent. Every way to reach your customers.
Connect voice, WhatsApp, SMS, and email. Your agent handles conversations across all of them — same context, same personality, no silos.
Voice
Local phone numbers in 40+ countries. SIP direct to carriers. Your agent sounds local because it is local.
Business API, verified sender, rich messages. Two-way conversations, not just blasts.
SMS
Global SMS delivery. Local routes, not grey routes. Delivery receipts on every message.
Transactional and outbound. Sequences, templates, tracking. Connected to the same agent.
Integrations
Works with the world's best.
Pre-integrated with leading voice AI, language models, telephony providers, and messaging platforms. As better models emerge, we add them.
ElevenLabs
Voice AI
OpenAI
Models + STT
AI + STT
Deepgram
Speech-to-Text
Twilio
Telephony
Messaging
Vonage
Telephony
Anthropic
AI Models
ElevenLabs
Voice AI
OpenAI
Models + STT
AI + STT
Deepgram
Speech-to-Text
Twilio
Telephony
Messaging
Vonage
Telephony
Anthropic
AI Models
Talk to us
Speak to Matt. Right now.
Enter your number and Matt calls you in under a minute. No forms, no waiting.
SPEAK TO US
Enter your number. Matt calls you in under a minute.
Agent · Jane
Hi Amara, this is Jane calling from Kopa. I'm reaching out about your account. Is now a good time?
Customer
Yes, I've been expecting your call.
Agent · Jane
I can see a balance of $240 due. If we split that into two payments — one today and one in two weeks — would that work for you?
Customer
Yes, that works. Let's do it.
How it works
Three steps. Zero infrastructure work.
Describe your agent
Name, personality, language, channels. Your agent, your script, your rules.
We handle the rest
Local phone number, voice model, WhatsApp channel, call scripts — provisioned and configured. Not in weeks. In seconds.
Start reaching customers
Upload a CSV or connect your CRM. Pick a strategy. Your agent starts conversations immediately. Every outcome logged.
Developers
Sauti API
Programmatic access to calls, messages, and agents. RESTful endpoints, webhook events, full documentation.
Calls
Initiate, transfer, record. Real-time transcription via WebSocket.
Messages
WhatsApp, SMS, email. Send, receive, track delivery.
Assistants
Create, configure, version. Personality, voice, language, model.
Webhooks
Call completed, message delivered, payment promised. Real-time events to your backend.
curl -X POST https://sauti.shylock.ai/v1/calls \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{
"assistantId": "asst_jane_collections",
"phoneNumberId": "pn_jakarta_01",
"customer": {
"number": "+62812345678",
"name": "Rina Wijaya"
}
}'{
"id": "call_8f3k2j",
"status": "ringing",
"assistant": "asst_jane_collections",
"from": "+62215551234",
"to": "+62812345678",
"created_at": "2026-04-02T10:30:00Z"
}