The PrusaLink integrationIntegrations connect and integrate Home Assistant with your devices, services, and more. [Learn more] allows you to monitor your Prusa 3D printer and its progress with your Home Assistant installation. This integration works with Prusa MINI/MINI+, Prusa MK3.9/MK4, Prusa XL, and with the older Raspberry Pi-based Prusa MK2.5/MK3.

This integration has been updated to utilize the latest v1 API endpoints, which require firmware version 4.7.0 or later. If you own a Prusa MINI/MINI+, please make sure your printer is running firmware 5.1.0 or a more recent version. Firmware versions 4.7.x and 5.0.x are not available for this model. For Prusa MK2.5/MK3, this integration requires PrusaLink version 0.7.2 or later.

Firmware update guides can be found here:

Obtaining hostname, username, and password


  • On your printer, navigate to Settings > Network > PrusaLink.
  • Find the device’s IP address. Alternatively, you can look for the printer’s IP address or hostname on your router.
  • Note that for some models, the username may not be visible, as it is hardcoded to maker.
  • Depending on your model, the password entry may not be called Password, but API key.

Prusa MK2.5/MK3

  • The device’s IP address is displayed on the printer LCD after PrusaLink starts up. Alternatively, you can look for the printer’s IP address or hostname on your router.
  • Use the username and password you entered during the initial PrusaLink setup (not the API key).


To add the PrusaLink integration to your Home Assistant instance, use this My button:

PrusaLink can be auto-discovered by Home Assistant. If an instance was found, it will be shown as Discovered. You can then set it up right away.