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Linking your inverter

To see your solar data in Check My Solar, you need to link your Fox Cloud account. Your inverter must already be connected to Fox Cloud (via the Fox ESS app or portal). Check My Solar then reads data from Fox Cloud; it does not talk to your inverter directly.

You can link in two ways: Quick Connect (recommended) or API key.


  1. On the “Link Your Fox Cloud Account” screen, leave Quick Connect selected.
  2. Tap Connect with Fox Cloud (or Re-authenticate with Fox Cloud if your session expired).
  3. You’re sent to Fox Cloud to sign in and approve access for Check My Solar.
  4. After you approve, you’re redirected back; the app links your account and discovers your inverter(s).

Benefits:

  • No API key to copy or store
  • The app can refresh the connection when needed
  • Read-only access to your solar data

If your Fox Cloud session expires later, you’ll see the link screen again; use Connect with Fox Cloud once more to re-authenticate.


If you prefer not to use OAuth, or you need to use an API key (e.g. for a shared or managed Fox account):

  1. On the link screen, switch the toggle to API Key.
  2. Optionally enter an Account name (e.g. “Home”) so you can tell this link apart if you add more later.
  3. Get your key from Fox Cloud:
    • Go to foxesscloud.com and sign in
    • Open User Center → API Management
    • Create or copy an API token
  4. Paste the token into Fox Cloud API Key in Check My Solar.
  5. Tap Link API Key.

Your key is stored securely and used only to read data. If the key expires or is revoked in Fox Cloud, you’ll need to generate a new one and link again.


  • The app discovers your inverter(s) and loads data. You may be redirected to the dashboard automatically.
  • If this is your first time, you may see the onboarding flow (guided tour); you can complete it or skip it.
  • To add another Fox Cloud account or API key later, open the menu → Account and use the option to link another account.

You can link more than one Fox Cloud account (or more than one API key). In the app menu you can:

  • Switch device — Choose which inverter’s data is shown on the dashboard
  • Manage accounts — Add or remove Fox Cloud links

Each link is tied to your Check My Solar account; your notification and rate settings can be set per device where supported.


IssueWhat to try
“Failed to link”Check that your Fox Cloud login works at foxesscloud.com and that the inverter appears there. For API key, ensure the token is valid and has not been revoked.
No data after linkingWait a minute and pull to refresh. Confirm the inverter is online in Fox Cloud and sending data.
Session expiredUse Connect with Fox Cloud again (Quick Connect) or re-enter a valid API key. You stay signed in to Check My Solar.

Next: The onboarding flow or Dashboard overview.