VoiceRx

A voice assistant that answers health questions on a phone call, from a curated set of health FAQs rather than the model’s memory.

Top 40 of 2,500+ teams at Hack BLR 2026, built solo

For: Patients who have a phone long before they have a doctor nearby.
My part: Built alone: the Vapi assistant, the FastAPI webhook, the FAQ ingestion into Qdrant and the answer step.
Built with: Vapi, FastAPI, Qdrant, Groq, FastEmbed

Source (opens in a new tab)

How it works

One question, six steps

You ask a question on the call
Vapi turns it into text and calls the webhook
FastEmbed embeds the question locally
Qdrant returns the three closest health FAQs
Llama 3.1 8B on Groq answers from those three
Vapi reads the answer back

The problem

Plenty of patients have a phone long before they have a doctor. VoiceRx gives them someone to ask, on an ordinary call.

Retrieve first, then answer

The model is never asked a health question cold. It gets the three closest entries from a curated FAQ set and writes its answer from them, so what a caller hears can be traced to a source.

Outcome

Top 40 of 2,500+ teams at Hack BLR 2026, built alone.

Event: Hack BLR 2026, Bengaluru, April
Field: 2,500+ teams
Result: Top 40, as a solo build

Explore VoiceRx

Source (opens in a new tab)github.com