Privacy Policy — HA-Connector

Last updated: September 25, 2026

Overview

HA-Connector is a personal-use integration that connects Google Nest devices to a self-hosted Home Assistant instance via Google’s Smart Device Management (SDM) API. It is operated by an individual for private smart-home use only and is not offered as a public service. This policy describes what data the integration accesses, how it is used, and what controls you have.

Data We Access

When you authorize HA-Connector through Google’s OAuth consent screen, you choose which devices and capabilities to grant. Depending on your choices, the integration may access:

• Device identity and structure info: device names, types, and the rooms/structures they belong to, so devices can be displayed and organized.
• Thermostat data: current ambient temperature and humidity, thermostat mode (heat, cool, heat/cool, eco, off), temperature setpoints, and HVAC/fan state.
• Camera and doorbell data: live-stream session metadata and event notifications you enable (such as motion, person, sound, or doorbell press events), plus still images or clips associated with those events.
• Account identifiers: the Google account email used during OAuth authorization, and OAuth tokens required to maintain the connection.

The integration does not access your Gmail, Google Drive, contacts, or any data outside the Nest device scopes you explicitly approve.

How Data Is Used

Accessed data is used solely to:

• Display device state (e.g., current temperature, camera status) inside your own Home Assistant dashboards.
• Execute commands you initiate, such as changing a thermostat setpoint or starting a camera stream.
• Deliver event-driven automations you configure (e.g., a notification when a doorbell press event arrives via Google Cloud Pub/Sub).
• Maintain the authorized connection, including refreshing OAuth tokens.

Data Storage

All data is processed and stored locally within your own Home Assistant installation and its supporting Google Cloud project (used for API access and Pub/Sub event delivery). OAuth tokens are stored in Home Assistant’s local credential storage. No Nest device data is stored on any other server operated for this integration.

Data Sharing

We do not sell, rent, or share your data with third parties. Data is transmitted only to Google’s APIs as required for the integration to function, and to your own Home Assistant instance. There is no advertising, analytics, or tracking in this integration.

Your Controls

• You can review or revoke HA-Connector’s access at any time from your Google Account’s Third-party access settings.
• You can choose which devices and capabilities to authorize on Google’s consent screen, and change those choices by re-running authorization.
• Removing the integration from Home Assistant stops all further data access.

Changes to This Policy

If this policy changes, the updated version will be posted at this URL with a revised “Last updated” date.

Contact

Questions about this policy can be directed to the operator’s Google account email used during OAuth setup.