Pizza Ordering Voice Agent

A hands-on workshop template demonstrating voice-based pizza ordering. Customers speak naturally to browse the menu, add items to their cart, and place orders through a real-time conversational AI agent that handles speech recognition, natural language understanding, and voice responses.

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The numbers

latency—

cost / min—

frameworkCustom

The stack

telephonyWeb Only

speech-to-textDeepgram Nova-2

llmGPT-4o-mini

text-to-speechDeepgram Aura-2

System prompt

No prompt published.

Config

config.json

{
  "voice_id": "aura-2-thalia-en",
  "functions": [
    {
      "name": "getMenuItems",
      "description": "Returns the full menu with prices"
    },
    {
      "name": "addToOrder",
      "parameters": [
        "item",
        "quantity"
      ],
      "description": "Adds items to the order"
    },
    {
      "name": "removeFromOrder",
      "parameters": [
        "item"
      ],
      "description": "Removes items from the order"
    }
  ],
  "stt_model": "flux-general-en"
}

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