The Lovable of Voice AgentsBuild AI Phone Agents in Minutes
Design intelligent phone agents with branching call flows, SIP transfer, and live webhook integrations, all on a visual canvas. No code, no boilerplate.
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Built for this workflow
Everything you need to design, test, and deploy your voice agent, visually.
SIP transfer support
Route callers to human agents or specialist queues using LiveKit SIP. Handle inbound and outbound call flows.
Branching call flows
Design triage logic visually with If/Else and Categorize nodes, route billing, tech support, and sales calls to the right path.
Multi-step conversations
Build structured call scripts with Start, Burst, Timer, and End nodes. Define exactly what the agent says and when.
Natural voice with 30+ providers
Choose from ElevenLabs, Cartesia, Deepgram, and 25+ other TTS/STT providers for natural-sounding phone interactions.
Webhook integrations
Connect your CRM, ticketing system, or backend APIs mid-call via webhook nodes, look up customer data in real time.
AI-generated call scripts
Describe the call flow you want in plain language and let the AI build the full conversation structure for you.
The tightest feedback loop
Spin it up. Call it. Refine until it’s right.
Generate from a prompt
Describe the voice agent you want, like 'Build a pitch practice bot', and the AI creates the full conversation flow instantly.
Edit visually on the canvas
Drag, drop, and connect nodes to reshape the conversation flow exactly how you want it.
Edit it by prompting
Describe what you want to change in plain language and watch the agent update in real time.
Test it immediately
Talk to your agent right inside the builder - no deployment needed.
Improve a response you didn't like
When the agent says something off, click on that message in the conversation panel to correct it.
Deploy directly from the app
When your agent is ready, deploy it with a single click. No extra tools or setup required.
Share it with anyone
Generate a share link and send it to anyone. They can test your agent directly on voiceblox.ai, no app install needed.
Common use cases
Customer support triage with billing and technical support branches
Sales qualification flows with conditional routing to closers
Appointment scheduling agents with calendar webhook integration
Inbound call screening with SIP transfer to human agents
Multilingual support agents with automatic language detection
Start building for free
Open source and self-hostable. Read the documentation to get started in minutes.