2026.1.3
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Dexcom

The Dexcom integrationIntegrations connect and integrate Home Assistant with your devices, services, and more. [Learn more] allows you to view your CGM data from Dexcom in Home Assistant.

Prerequisites

You will need to set up the Dexcom Share feature in your Dexcom G6 or G7 app to use this integration. Enabling the Dexcom Share service requires setup of at least one follower. The integration will use the Dexcom user’s credentials, not the follower’s credentials.

Configuration

To add the Dexcom service to your Home Assistant instance, use this My button:

Manual configuration steps

If the above My button doesn’t work, you can also perform the following steps manually:

Username

Username, email address, or phone number. Format phone numbers with a +, your country code, then your phone number.

Region

The Dexcom Share API endpoint, one of US, Outside of US, Japan.

Troubleshooting

Validate your Dexcom account credentials by logging on to the Dexcom Account Management website for your region:

For users in the United States: uam1.dexcom.com. For users outside of the United States: uam2.dexcom.com. For users in Japan: uam.dexcom.jp.

Sensor

If you have a sensor session running, and once you have enabled the Dexcom integration, you should see the following sensors:

  • Blood glucose value sensor
  • Blood glucose trend sensor

Example automation 

- alias: "Overnight low kitchen lights"
  description: "Turn on the lights in the kitchen if my blood sugar drops low overnight"
  triggers:
    - trigger: numeric_state
      entity_id: sensor.dexcom_YOUR_USERNAME_glucose_value
      below: 65
  conditions:
    - condition: time
      after: "22:00:00"
      before: "06:00:00"
  actions:
    - action: light.turn_on
        target:
          entity_id: light.kitchen