Development Environment — Features may be unstable
Features How It Works Use Cases Pricing Documentation Log In Get Started
Now in Dev

Give Your AI Agent
a Voice

The conversational hub for AI agents. Plug in your existing agent and instantly connect it to voice, phone, and chat. One integration to all channels. You built the brain, we give it a mouth.

Real-Time
Human Speed
Web & App
VoIP Integrated
Telephony
Global Network
Messaging
Chat Channels
Trusted by innovative teams worldwide

Plug In Your Agent in Minutes

Already have an AI agent? Connect it to HubUI and give it the power to communicate with humans through any channel.

1

Create or Connect

Enter your system instructions to start instantly, or connect your custom backend via WebSocket for advanced logic and full control.

2

Configure Your Agent

Choose your voice, set interruption handling, configure silence detection, and customize the conversation flow through our dashboard.

3

Go Live on Any Channel

Your agent can now talk on phone, web voice, and chat. One integration unlocks every communication channel — more coming soon.

brain_handler.py — Connect Your Existing Agent
from fastapi import FastAPI, WebSocket
import openai

app = FastAPI()

@app.websocket("/brain")
async def brain_handler(websocket: WebSocket):
    await websocket.accept()
    
    while True:
        # Receive transcribed speech from HubUI
        message = await websocket.receive_json()
        
        if message["type"] == "transcript":
            # Your AI logic here — use any LLM
            response = await openai.ChatCompletion.create(
                model="gpt-4",
                messages=[{"role": "user", "content": message["text"]}]
            )
            
            # Send response back — HubUI handles TTS & audio
            await websocket.send_json({
                "type": "response",
                "text": response.choices[0].message.content
            })

Every Channel, One Hub

Connect your AI agent to all the ways humans communicate. Voice, phone, chat today — email, SMS, video tomorrow.

Bring or Build Your Brain

Connect your existing WebSocket agent for full control, or use our hosted LLM agents for instant deployment. Your logic, our voice.

Phone Numbers

Provision toll-free, local, and mobile numbers instantly. Your AI agents can make and receive calls on real phone networks.

Voice & Audio

Premium STT and TTS with multiple voice options. Configure pitch, speed, and personality.

Low Latency

Sub-500ms end-to-end latency with intelligent voice activity detection. Natural conversations without awkward pauses.

Voice & Text Chat

Embed voice and text chat in your web app. Your users choose how they want to talk to your agent — we support both.

Analytics & Logs

Complete call recordings, transcripts, and analytics. Track latency, costs, and conversation metrics in real-time.

Focus on Your Agent, Not Infrastructure

You've built an amazing AI agent. Don't waste months building communication infrastructure.

Capability Build Yourself With HubUI
Time to Production 3-6 months 1 day
Telephony Integration Complex PSTN setup Instant provisioning
Audio Processing Build VAD, echo cancellation Built-in, optimized
Latency Optimization Requires deep expertise <500ms target
Scaling Manage infrastructure Auto-scales
Compliance Months of audits Coming soon
Engineering Cost $500K+ / year Starting at $0

Your Agent, Real Conversations

Developers and growth teams use HubUI to build high-converting voice interfaces for any industry.

Customer Support

Deploy AI agents that handle support calls 24/7. Reduce wait times and improve customer satisfaction.

  • Instant call answering
  • Intelligent call routing
  • Seamless human handoff
  • Multi-language support

Sales & Outreach

Automate outbound calls for lead qualification, appointment scheduling, and follow-ups.

  • Lead qualification
  • Appointment booking
  • CRM integration
  • Campaign analytics

In-App Voice Experience

Embed intelligent voice capabilities directly into your web or mobile application using our SDKs.

  • React & Mobile SDKs
  • Low-latency WebRTC
  • Context-aware actions
  • Visual UI integration

Simple, Transparent Pricing

Start free and scale as you grow. No hidden fees, no surprises.

Free

$0/mo

Perfect for testing

  • Up to 1 agent
  • 60 voice minutes
  • 1,000 text messages
  • Text + Web Voice
  • Community support
Start Free

Builder

$49/mo

For side projects

  • Up to 10 agents
  • 500 voice minutes
  • $0.25/min overage
  • 10,000 text messages
  • IP Telephony
Get Started

Scale

$499/mo

For high volume

  • Up to 100 agents
  • 25,000 voice minutes
  • $0.15/min overage
  • 500,000 text messages
  • IP Telephony
  • Priority support
Get Started

Ready to Give Your Agent a Voice?

Join hundreds of companies connecting their AI agents to human communication. Start free with 50 minutes — no credit card required.