Voice AI for Developers
Build the Next Billion
Voice Experiences

Ship natural, multi-language voice apps with a few lines of code. Trusted by global teams. Built for scale

Easy-to-use APIs & SDKs
Studio-quality speech
Real-time, secure, and scalable
50+ languages and dialects

Trusted Partners

Bullring & Grand Central
Hammerson
Monetary Authority of Singapore
Moments
Best Home Employment
Mitsubishi Motors
Kuisine Koncepts
Gotti
Toma
Burma Social
Voice AI Innovation

AI Agents using Sonyk

Discover the voice-first innovations powering your apps, calls, and creative content

Platform Capabilities

What Can You Buildwith Sonyk?

Transform your ideas into powerful voice AI applications with our comprehensive suite of tools

Low-Latency Audio Streaming

Stream full-duplex audio in real time with <200ms latency for natural conversations.

Use Cases:

Real-time voice agents, virtual receptionists, interactive bots

Inbound & Outbound Calling

Bridge AI agents to any phone number using SIP trunks for seamless telephony integration.

Use Cases:

Customer support lines, sales dialers, IVR systems

Programmable Call Routing

Trigger transfers, barge-ins, or fallback logic with powerful API hooks and controls.

Use Cases:

Bot-to-human escalation, tier-2 support, dynamic intent routing

Raw Audio Access

Get PCM or Opus audio frames per participant for real-time ML inference and processing.

Use Cases:

Whisper integration, Amazon Transcribe, custom NLU stack

Webhooks & Event Stream

Listen to room and participant lifecycle events like onJoin, onLeave, and onEndCall.

Use Cases:

Analytics dashboards, workflow triggers, session logging

Multi-Party Sessions

Add AI, human, and supervisor into the same call — no bridges needed.

Use Cases:

Human-AI hybrid handling in healthcare, finance, recruitment

Deploy Anywhere

Host on your own infra, VPC, or edge network — no vendor lock-in.

Use Cases:

Latency-sensitive voice bots, data residency compliance

JWT Access Control

Issue scoped tokens for bots, users, and agents with fine-grained permissions.

Use Cases:

Internal tools, customer apps, third-party integrations

Language-Agnostic SDKs

Use ready-to-go SDKs in JavaScript, Python, Go, Swift, Kotlin, and more.

Use Cases:

Build voice workflows in your preferred tech stack

Text to Speech

Natural Voice Generation for Any Content

Transform any text into lifelike speech with customizable voice styles, pacing, and clarity - perfect for audiobooks, learning modules, or conversational AI.

Text to Speech Demo

Speech to Text

Turn Conversations into Captions

Accurately transcribe voice input into editable text in real-time. Ideal for voice commands, meeting notes, and content creation—optimized for speed and clarity.

Speech to Text Demo

Phone AI

AI Agents That Talk on the Phone Like Humans

Deploy voice-driven agents that understand, respond, and engage in real-time phone conversations - great for customer support, appointment booking, and lead qualification.

Phone AI Demo

Voice Cloning

Create a Digital Twin of Any Voice

Clone any voice with stunning accuracy and emotional tone. Use it to preserve legacy voices, personalize audio experiences, or create multilingual characters with a consistent sound.

Voice Cloning Demo

Emotion Engine

Add Real Emotion to Your Voice Output

Go beyond words — inject emotions like joy, sadness, or urgency into any voice to make your audio truly resonate with listeners.

Emotion Engine Demo
Developer Tools

Developer ExperienceThat Just Workswith Sonyk

From prototype to production in minutes with our intuitive SDKs and comprehensive documentation

Simple Setup

npm install @sonyk/voice-ai
const sonyk = new Sonyk(api_key);
await sonyk.connect();
One-line installation
Auto-configuration
TypeScript support

Rich Features

Real-time emotion detection
50+ languages supported
Custom voice personalities
Interrupt handling
Phone integration

Enterprise Ready

<400ms
Global latency
99.9%
Uptime SLA
SOC2
Compliant
24/7
Support
Industry Solutions

Build for Any Industry

From customer support to gaming, transform your industry with powerful voice AI solutions

Banking & Finance

AI-powered customer support and financial advisory services

Education

Interactive voice-driven learning experiences

E-commerce

Voice-powered shopping assistants and product discovery

Healthcare

Telehealth with cultural sensitivity

Government

Citizen services automation

Gaming

Immersive voice-enabled gaming experiences