Smart City Voice AI Demo for Harbour City Operations

A voice AI agent for a fictional smart city (Harbour City) featuring hot-word activation ('Hey Eve') and 16 mock functions across 4 interactive scenarios: Command & Control (power grid), Frictionless Resident (pod/coffee/HVAC), Smart Work (revenue/projections/decks), and Proactive Guardian (flood gates/alerts). Includes dynamic dashboard updates driven by LLM function calls, conversation persistence, audio interruption handling, and a futuristic minimalist UI.

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The numbers

latency—

cost / min—

frameworkCustom

The stack

telephonyWeb Only

speech-to-textDeepgram Nova-2

llmGPT-4o

text-to-speechDeepgram Aura-2

System prompt

No prompt published.

Config

config.json

{
  "voice_id": "aura-2-pandora-en",
  "hot_word": "Hey Eve",
  "functions": 16,
  "scenarios": [
    "Command & Control",
    "Frictionless Resident",
    "Smart Work",
    "Proactive Guardian"
  ],
  "technologies": [
    "flask",
    "deepgram-sdk",
    "openai-gpt",
    "websockets",
    "python",
    "docker",
    "fly.io"
  ]
}

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