Natural voice conversation
Clients speak, the AI listens and responds in real time. No IVR menus, no hold music — just a natural conversation.
AI Voice Real Estate Agent
Your 24/7 AI concierge for real estate enquiries
Speak naturally to schedule viewings, explore listings, and get instant answers. Powered by Retell's real-time voice AI and a secure FastAPI backend.
24kHz
Audio sample rate
Realtime
Live transcript
Secure
Server-side tokens
Platform Capabilities
Everything a modern property AI needs
From secure token minting to real-time transcript delivery — built for production from day one.
Appointment booking
The agent checks live availability and confirms viewings on the spot, writing bookings back to the calendar instantly.
Server-side token security
API credentials never leave the server. A short-lived access token is minted per session and consumed within 30 seconds.
Live transcript stream
Every word is captured in real time and displayed in the operator console. Copy, review, or feed downstream CRMs.
Session event log
A timestamped log of every call event — agent speaking, muted, update payload, error — for full observability.
Instant deployment
Ships as a single FastAPI app. One environment file, one Vercel deploy command — production in minutes.
Deployment Flow
Clear path from web click to spoken conversation
Three clean steps, zero hidden complexity.
Token minted on backend
When a user clicks Start, FastAPI calls Retell's token API using server-side credentials and returns a short-lived access token.
Session starts in browser
The widget uses the token to initiate an audio session directly with Retell. Microphone permission is requested and the call begins.
Transcript and events stream
Operators watch status updates, live transcript, and structured call events in the assistant console in real time.
Common Questions
Everything you need to know
No. The session runs entirely in the browser using the Web Audio API. The caller only needs to grant microphone permission — no app, plugin, or account needed.
Your API key lives exclusively in a server-side environment variable. The browser only ever receives a short-lived access token that expires within seconds of issuance.
Yes — the agent is fully configured in the Retell dashboard. System prompts, persona, tool definitions, and response styles are all editable without touching the application code.
The backend receives a tool call from Retell via webhook, validates the requested slot, marks it as booked, and returns a confirmation reference that the agent reads back to the caller.
Browsers require a secure context to access the microphone. In local development you can use localhost; any production or demo deployment must be served over HTTPS — Vercel handles this automatically.