Additional CA for Home Assistant (Marketplace integration)

Installs: 909 sharing analytics
GitHub stars: 93
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: 0.6.2, October 17, 2026
Category: Computers and network, Cloud and developer tools
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: additional_ca
Source: github.com/Athozs/hass-additional-ca
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

About

Additional CA loads a private Certificate Authority or self-signed certificate into Home Assistant for TLS/SSL access. It lets integrations reach devices and third-party services that use certificates Home Assistant would not otherwise trust, such as a personal HTTPS web server, SMTP or LDAP service. The certificate is loaded again automatically after Home Assistant is upgraded, so the trust does not need to be redone. It works locally and is set up in the UI, with the certificate file placed in the configuration folder. A restart of Home Assistant is needed after changes, and a notice can appear in Settings under Repairs to say so.

Automatic summary of the README and code of Athozs/hass-additional-ca. Something wrong, or are you the maintainer and want your own text here? Get in touch

Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Troubleshooting

Repair noticesNotices it can show in Settings, Repairs:Home Assistant needs to be restarted

From the README

The Additional CA integration for Home Assistant automatically loads a private Certificate Authority or self-signed certificate into Home Assistant to access 3rd-party services with TLS/SSL, even after Home Assistant is upgraded.

From the README of Athozs/hass-additional-ca, MIT License. Shortened.