The Zero Runtime SDK lets you build voice AI agents with a clean, type-hinted API available for Python 3.11+ and Node.js 20.11+.

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Prerequisites

Before installing, make sure you have:
  • Python 3.11 or later
  • A Zero Runtime auth token — get these from the Zero Runtime dashboard
  • API keys for any AI/voice providers you plan to use (e.g., STT, TTS, LLM providers)

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Installation

Install the SDK via pip:

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Connect to the Runtime

Point the worker at your runtime address and set your auth token using the values from the dashboard. Create a .env file:
.env

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API reference

Python SDK API reference

Every export, type, and option in the Python SDK.

Node.js SDK API reference

Every export, type, and option in the Node.js SDK.

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Github Examples

Python Examples

Runnable examples for the Python SDK.

Node.js Examples

Runnable examples for the Node.js SDK.