MADFUT
Invite friends, give cards and write backups. Tokens stay in your browser, never on the server.
Account
Step 1: open Google sign-in
Click the button, sign in with your Google account in the new tab, then come back.
Step 2: paste the redirect URL
After Google redirects, copy the full URL from the address bar and paste it here.
Paste a MADFUT Firebase refresh token. You can get one from the invite app or from a previous session.
Give cards
Invite a friend (or sit in the open queue) and give them up to 3 cards per trade, in a loop.
Backup
Read the current cloud backup or write new fields. The 5-restore cap (numRestores) is read-only.
Write fields (JSON merge)
A JSON object of fields to merge onto the live backup. Plain JS values are converted to Firestore types.
Example: {"xp": 672650, "level": 300}