The Next Gen Voice AI Platform:
HelloKit
The advanced AI-powered call center solution for modern businesses. Automate your customer service with intelligent voice agents.
The most powerful
enterprise-grade voice AI
Build natural, real-time voice interactions with AI agents that understand context, respond intelligently, and scale globally.
Ultra-Low Latency
Sub-400ms end-to-end latency powered by Cartesia Sonic and Groq for conversations that feel completely natural.
Multimodal Intelligence
Powered by Gemini 2.0 and GPT-4o to understand tone, emotion, and complex instructions in real-time.
Global Scale
Native support for 40+ languages with automatic accent detection and seamless language switching.
Design complex flows
without writing code
Our intuitive drag-and-drop builder allows you to create sophisticated IVR menus, agent routing logic, and conversational pathways in minutes.
Drag & Drop Interface
Easily connect nodes to define conversation flow and logic.
Conditional Logic
Route calls based on customer intent, time of day, or CRM data.
Multi-Modal Nodes
Mix voice, SMS, and function calls in a single workflow.
Actionable insights
in milliseconds
Monitor your contact center performance in real-time. Track sentiment, engagement, and operational metrics to optimize your workforce instantly.
- Live call monitoring and whisper coaching
- Real-time sentiment analysis and alerts
- Granular campaign performance tracking
- Agent efficiency and quality scoring
High-velocity
smart campaigns
Scale your outreach with intelligent dialing modes. Whether you need predictive dialing for max efficiency or progressive dialing for precision, we have you covered.
Predictive Dialer
Eliminate wait times. Our AI predicts agent availability and connects calls only when a human answers.
Voice Blasts
Send personalized audio messages to thousands of contacts instantly for notifications or alerts.
Lead Management
Import leads, track status, and recycle unreached contacts automatically.
Get started in
minutes, not months
Our intuitive APIs and SDKs make it easy to build sophisticated voice AI applications. From prototype to production in record time.
import { VoiceAgent } from '@hellokit/sdk';
const agent = new VoiceAgent({
apiKey: process.env.API_KEY,
model: 'gemini-2.0-flash',
voice: 'cartesia-sonic',
});
// Connect and start handling calls
await agent.connect();
agent.on('call.started', () => {
console.log('Agent is live and listening...');
});How it works
A complete real-time infrastructure for voice AI applications, optimized for speed and natural interaction.
Voice Input
01User speaks naturally via phone, web, or mobile app
High-quality audio capture with noise cancellation
Speech-to-Text
02Real-time transcription with 95%+ accuracy
AI Processing
03Google Gemini analyzes intent and generates response
Voice Response
04Natural speech synthesis and delivery
Client SDKs for
every platform
Build with your favorite languages and frameworks. Our SDKs provide type-safe, well-documented APIs for seamless integration.
JavaScript
TypeScript
Python
React
Next.js
Node.js
Plus support for iOS, Android, Flutter, and more
Deploy on a
global edge network
Our infrastructure spans across continents with edge locations worldwide, ensuring low latency and high availability for your users, wherever they are.
Ultra-low latency
Edge computing brings processing closer to your users for sub-100ms response times.
Global reach
50+ edge locations across 6 continents for worldwide coverage and redundancy.
99.99% uptime
Enterprise-grade reliability with automatic failover and intelligent routing.
Complete platform capabilities
Everything you need to manage, scale, and secure your voice operations in one unified dashboard.
Session Recording
Full visibility into every interaction with HD call recordings, searchable transcripts, and granular debug logs.
Knowledge Base
Upload documents or connect URLs to train your agents with RAG. They'll answer questions using your specific business data.
BYO Telephony
Bring your own SIP trunks or purchase DID numbers directly. Manage dispatch rules and routing globally.
Live Streaming
Process real-time audio with Egress/Ingress support. Stream calls to third-party services for recording or analysis.
Enterprise Security
Role-based access control, comprehensive audit logs, and SOC2 compliant infrastructure for peace of mind.
Custom Functions
Extend agent capabilities with custom HTTP tools and webhooks to integrate with your existing CRM and backend systems.
Ready to build the
future of HelloKit?
Join thousands of developers and enterprises building sophisticated voice AI agents. Start for free, scale to millions.