Prerequisites
HACS before Home Assistant 2026.11
This section is about HACS, the custom integration, on Home Assistant 2026.10 and older. Starting with Home Assistant 2026.11, HACS is built in as the Marketplace. See HACS and the Marketplace.
Before you start using HACS, make sure the following requirements are met:
- You are running Home Assistant version
2024.4.1or newer.- To see which version your system is running, in Home Assistant, go to Settings > About.
- You are running a supported Home Assistant installation.
- You have access to the file system where the Home Assistant configuration files are located.
- You know how to access the Home Assistant log file.
- You know how to enable debug logging.
- You are aware that although you can use an app to download HACS, HACS itself is not an app, and does not contain any apps.
- You have a stable internet connection, sufficient bandwidth, and no data caps.
- You are not blocking outgoing requests to GitHub or Cloudflare.
- For more information, refer to the documentation under FAQ > Data sources.