Paste the API token from your Mac to enable writes (switch meters, edit settings, etc.) from this device. Read-only views work without authorization.
When WhatsApp asks to relink, scan the QR from this Mac. The QR is local-only and is not exposed through the public dashboard URL.
To get the token, open Terminal on the Mac and run:
cat ~/Library/Application\ Support/SolarScope/api_token
AirDrop or paste the value here. The token is stored only in this browser's localStorage; nothing is sent until you press Authorize, and even then it's verified against the server's stored token.