Wallet and security
Backd doesn't make you a wallet and doesn't keep your keys. You bring Phantom or MetaMask, your money sits in your own Polymarket wallet, and nothing leaves it without your signature.
Linking, step by step
- Open Wallet and pick your wallet app.
Wallet lists the wallets in your browser, Phantom or MetaMask. Nothing is signed yet.
- Approve up to five signatures.
Each one pops up in your wallet with a plain explanation. None carries a network fee. Polymarket's relayer pays the network costs.
- Done.
Your balance shows at the top of the page and in the header. Deposit, or use the balance you already have on Polymarket, and back a call. You never do this again on this account.
What the signatures do
| Signature | What it does | Who needs it |
|---|---|---|
| 1. Create your Polymarket wallet | Makes your Polymarket wallet on Polygon from your signer. Skipped if you already have one from polymarket.com. | Everyone, once. |
| 2. Approve the exchange | Lets Polymarket's exchange move shares in and out of your wallet when an order fills. It can't withdraw. | Everyone, once. |
| 3. Authorise one-tap orders | Gives Backd a trading-only key that can sign orders to back, cash out and claim for your wallet. It cannot withdraw, transfer or change who owns the wallet, and you can revoke it any time. | The day Polymarket enables session signers for Backd. Until then this step is skipped and your wallet signs each order. |
Browser-signed and one-tap
| Browser-signed (today) | One-tap orders (coming) | |
|---|---|---|
| Backing a call | Your wallet pops up and you sign the order. | One tap. Backd's trading-only key signs it. |
| Cashing out early | Your wallet signs. | One tap. |
| Claiming winnings | One signature on the Wallet page, no network fee. | Automatic within about 15 minutes of settlement. |
| Withdrawing | Your wallet signs, every time. | Your wallet signs, every time. The key can't. |
| When | Now. | When Polymarket enables session signers for Backd. Nothing to do on your side. Set-up will offer the third signature. |
The Wallet page
The balance at the top is your Polymarket balance, live. It's the same number you see on polymarket.com with the same wallet. Deposit and Withdraw open the chain grid; see deposit and withdraw. Pending transfers are tracked on the page until they land.
Positions lists every open position, what it's worth now, and a Claim button on anything that has settled in your favour. History is your fills, claims, deposits and withdrawals from Polymarket. Settings are toggles, including whether your calls post to your crews. Revoke forgets the one-tap key on our side, once you have one.
Balance and rank in the header
Once a wallet is linked, the header on every page shows your balance with a Deposit button beside it, and your rank mark. Tap the rank mark for your rank card: XP, rank, progress to the next one, and the rebate and referral share tracked for you. Tap your photo for the profile menu: View profile and a settings cog, quick Deposit and Withdraw, then Wallet, Leaderboard, Referrals, Rewards (XP) and Docs, and Log out. Your own profile shows your balance, open positions and the same two buttons.
Keeping it safe
Your wallet app is the door to your money. Keep its seed phrase offline and turn on whatever protection it offers. Backd will never ask for a seed phrase or private key. Anyone who does is not us.
Read each signature request before approving it. Backd's say what they are for. Check withdrawal addresses twice, because nobody can reverse a transfer. And only fund what you're prepared to lose. Every call can lose its stake.
It works on Polymarket too
The wallet is Polymarket's own, so everything you do on Backd shows on polymarket.com with the same wallet app, and you can trade, claim or withdraw there whenever you like. If Backd disappeared tomorrow, your money and positions would still be yours.