←All work
Voice Agent: tasks and calendar over a live call
A voice assistant you talk to over a live call: manages your to-do list and Google Calendar, with every conversation saved and resumable.
2026Solo
LiveKitFastAPIReactGroqDeepgramElevenLabs
Sign in with Google, hit “Start talking,” and ask it to manage your to-do list, book a calendar event, or read back your day — all over a live voice call. Three pieces work together: a FastAPI backend, a React frontend, and a separate voice agent worker that actually joins the LiveKit call and talks.
What it does
- Tasks & calendar by voice — add, complete, or delete tasks; book Google Calendar events with automatic double-booking checks; invite attendees; ask what’s on the schedule.
- Persistent conversations — every call is transcribed and saved, so you can read back or continue an old conversation later.
- Speech pipeline — Deepgram for transcription, Groq (Llama 3.3 70B) for the LLM, ElevenLabs for text-to-speech, with a Cloudflare Workers AI fallback that kicks in automatically if Groq’s rate limit is hit mid-conversation.
- Fresh room per call — LiveKit only auto-dispatches a worker to a newly created room, not a reused one, so every conversation gets its own room name to guarantee a live agent picks it up.
Why the worker is its own service
The backend and the voice worker deploy as separate long-running services on purpose: the backend is a normal request/response API, the worker holds a live audio connection open for the length of a call and needs its own lifecycle.