Connect Aster
Link your Aster account to Prow with one wallet signature on BNB Chain. Aster turns on trading after your first deposit.
On this page
Connecting gives Prow a trading key for your Aster account. The key lives on this device. It can trade perps and spot. It can never withdraw.
New to Aster? Any wallet works. Aster creates your account when you approve the key.
Connect step by step
Open Connect Aster
New users see it on Where do you trade?. Later, open Connect a venue on Portfolio (the link under By venue, or step 1 of Get started) and tap Connect next to Aster. Settings > Venues has the same Connect button.
Pick your wallet
Signed in with a wallet? Tap Continue with this wallet on its card. Otherwise Prow asks Which wallet do you use on Aster?: pick a linked wallet, or Another wallet to link Rabby, MetaMask, Coinbase or WalletConnect. Only have the Prow wallet? Prow says Aster needs a wallet app: tap Link a wallet app, pick one and go on with it. See Choose a wallet.
Switch to BNB Chain
Aster signs account actions on BNB Chain. Your wallet may ask to switch to BNB Chain first. It's a free switch, so accept it. No network fee is paid.
Approve the trading key
Tap Approve in your wallet, for example Approve in Rabby, and sign one message. If your wallet already has an Aster account, you sign one more message to add the key to it. Every prompt is listed in What you sign.
Fund your Aster account
Aster needs a first deposit before the key can trade. Prow waits and checks for it. See below.
Done
You see Aster connected. Balances and positions load into Portfolio.
The progress bar at the top shows Trading key, Deposit and, when it applies, Prow fee.
What the key can do
| Aster trading key | |
|---|---|
| Open and close perps positions | Yes |
| Trade spot | Yes |
| Withdraw | No, never |
| Valid for | Up to 180 days |
Open What you're signing in the signing step: it shows Withdraw: false and the Agent address. Check that the address in your wallet matches before you sign.
First deposit
Aster opens API trading only after your first deposit. This is an Aster rule. Your key is saved, and Prow finishes the setup by itself once the deposit lands.
Open asterdex.com with the same wallet
Tap the asterdex.com link in the steps. Connect the same wallet you used in Prow.
Deposit to Futures
Deposit any token Aster supports on that chain (USDT, USDC, BNB…) to your Futures account. Use Ethereum, BNB Chain or Arbitrum.
Come back
Prow detects it. You see Deposit found. Your Aster account is ready to trade. Tap Continue.
Not ready to deposit? Tap I'll deposit later. The account is saved. Until you deposit, its card in Settings > Venues says Make a first deposit on Aster to start trading. If the Prow wallet is your only wallet, the card says A Prow wallet can't fund Aster. instead.
Aster connected
The summary shows:
| Row | Meaning |
|---|---|
| Account | Your Aster account address (your wallet). |
| Trading key | When the key on this device expires. |
| Deposit | Found or Not found. |
| Prow fee | None when there is nothing to approve, Not approved when you haven't approved it, or the approved rate. |
| Withdrawals | On asterdex.com with your wallet. |
Enable spot on an older key
Keys made before Prow added Aster spot can only trade perps. In Settings > Venues, such a key shows Spot trading is off for this key. One wallet signature adds it. Tap Enable spot and sign one message. The key still cannot withdraw.
Messages you may see
| Message | What to do |
|---|---|
| Needs a wallet app | The Prow wallet is the only wallet you have, and Aster takes deposits only from a wallet app. Tap Link a wallet app, then connect Aster with it. Or start on Hyperliquid. See Choose a wallet. |
| A Prow wallet can't fund Aster. | Your Aster account belongs to the Prow wallet, so Prow can't deposit to it. Use the choices under the message: Hyperliquid, or Predictions where it is open to you. On the ticket and on the Aster card in Settings > Venues, the message comes with a button to the Deposit dialog, where the same choices are. |
| Prow wallet can't deposit to Aster from Prow. | You have a wallet app and the Prow wallet. Pick the wallet app for Aster. See Choose a wallet. |
| You cancelled the request in your wallet. | Tap the button again and approve. |
| Switch your wallet to BNB Chain to sign for Aster. No network fee is paid. | Switch to BNB Chain in your wallet by hand, then try again. |
| Your wallet couldn't sign. Nothing was changed. Try again. | Your wallet itself failed, for a reason that is not you declining. Tap Try again. |
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