Using a DEX

How to start using Aster: account, deposits and Pro trading

Start by choosing your access method and product. Then fund with the correct asset, prepare the order and check how to recover the balance.

GuideUpdated:
Compass with safety, costs and products
Clear informationCriteria explained plainly.
In-depth analysisEach factor considered separately.
Educational approachDesigned to help you understand.
For different needsYour needs shape the choice.

What to check first

Using Aster is not the same task as buying ASTER. This guide covers access, spot and Pro balances, orders and recovering funds. Choose the route matching your account rather than combining instructions from different products.

1. Connect a Web3 wallet or set up email access

Decide how to control the account before funding it. Networks available in your wallet are not automatically supported by every access method.

For Web3 access, launch the app, choose the chain and select Connect Wallet. Aster documents Rabby, MetaMask, Binance Wallet and WalletConnect-compatible options. Select the wallet and inspect the connection signature. Its guide mentions holding at least 0.001 BNB when connecting through BNB Chain; that is not a universal fee or the requirement for every route.

For email access, choose Connect, enter the address and confirm the six-digit code. The documented sequence adds a password, a signed message and a wallet linked to the email. That route accepts USDT on Arbitrum One: do not send a different asset or network by borrowing instructions from Web3 access.

Read the Aster review

2. Fund the correct product balance

A valid-looking address is not enough: the asset, network and receiving balance must match the product you want to use.

For email access, open Deposit from the account and follow the USDT Arbitrum One instruction. When sending from a CEX, verify that its withdrawal supports that exact network and calculate the amount after its fee. “Supports USDT” does not mean “supports USDT on any chain”.

Aster’s separate spot guide describes a product deposit address and a BSC route. Copy the destination shown for spot and select the matching source asset and network. For Pro, use its Deposit flow and check when the balance appears in Portfolio. These separate instructions prevent confusing a connected wallet with funds already available to trade.

Choose the funding journey before sending
RouteDocumented referenceCheck
EmailUSDT on Arbitrum OneEmail-linked wallet and displayed address
SpotBSC deposits and withdrawals in the spot guideAsset, spot destination and network
Pro with walletDeposit and credit in PortfolioSupported asset/network in that flow

Retain the transaction hash and wait for confirmations. If no credit appears, compare the transaction’s network and address before repeating it. The transfer guide explains how to inspect the route without confusing network names.

3. Separate spot, Pro and buying ASTER

The same asset symbol can appear in products with different balances and obligations.

For spot, choose a pair, spend the quote asset and receive the purchased coin. If you want ASTER to hold in a wallet, use how to buy ASTER. An ASTERUSDT contract provides margined exposure rather than a token balance you can withdraw as spot.

Pro uses an order book and contracts with margin rules. Aster has other modes with their own mechanics and costs; do not budget Pro using a number from another mode. Before submitting an order, identify the full market, settlement currency and fee category.

Start with one workflow and be able to explain which balance changes after a fill. If leveraged exposure is unnecessary, a spot purchase avoids learning funding and liquidation at the same time. Read spot versus futures for the conceptual difference.

4. Prepare a Pro trade

Choose size, margin mode and order type before opening, rather than trying to fix an unfamiliar position afterwards.

Select the contract and determine whether it belongs to Crypto General, Group B or another category. Choose Cross or Isolated and the leverage supported by that market. Documentation says margin mode cannot be changed after submitting a position or an open order; resolve existing orders and exposure before attempting a different mode.

Market orders prioritise execution while allowing the final price to move. Limits define a price boundary without guaranteeing a fill. Post Only rejects an order that would take liquidity, allowing a maker attempt but potentially no entry. Review side, notional and available collateral before confirming.

Hypothetical example: 200 USDT of margin at 2× represents 400 of exposure, subject to the contract’s requirements. Fees and funding use their relevant calculation base, not simply those 200. After a partial fill, inspect the position size and outstanding remainder. The market and limit guide explains each order’s effect.

5. Manage positions, stops and funding

The position panel shows used margin, liquidation price and available balance; trade history confirms what actually filled.

Aster documents TP/SL with mark or last-price trigger references. Choose deliberately: the latest trade can move differently from the mark used in liquidation calculations. A stop-limit can trigger without filling if the market moves past its limit; a market exit can experience slippage.

Cross margin shares collateral while isolated allocates it to a position. Consider all open exposure before increasing size or withdrawing. Unrealised profit is not necessarily money you can transfer without changing collateral. Review pending orders that might open exposure later as well.

Funding passes between longs and shorts, and its interval can differ by contract. Inspect the actual rate, countdown and history instead of assuming one schedule. If the balance is insufficient, a charge can affect position margin. The funding guide separates that cash flow from entry commission.

6. Calculate the selected market’s fees

Aster pricing depends on product and, for perpetuals, contract category.

Published references: not interchangeable
ProductMakerReference taker
Spot0.005%0.040%; check pair and tier
Perps Crypto General0%Initial 0.04%
Perps Group B0%Initial 0.1%
Perps RWA0%0.0125%

Hypothetical example: a 1,000 USDT taker entry in Crypto General at 0.04% costs 0.40 USDT. Closing at the same notional and rate makes 0.80 USDT combined execution fees before funding and other costs. At Group B’s 0.1%, that notional costs 1 USDT per execution. Identify the contract before choosing a budgeting rate.

VIP tiers and optional ASTER payment for spot fees are separate conditions. Buying the token is unnecessary for understanding ordinary fees, and no benefit from using a link is promised here. Add slippage, conversion and moving funds. See Hyperliquid vs Aster and calculating total trading costs for a broader comparison.

7. Withdraw and resolve a negative balance

Before withdrawing, identify the product and free funds after margin, open orders and settled charges.

Open Withdraw in the relevant product area and select asset, network and amount. Check the destination and net receipt before approving. The spot guide documents BSC withdrawals; another account’s route must follow its displayed method, rather than a network or address reused out of habit.

Aster explains that realised losses, funding or commissions can create a negative settlement-asset balance when multiple collateral assets are used. This must be resolved before withdrawing. Its documented flow offers Rebalance on the relevant balance screen or depositing the required asset; the conversion appears as auto-conversion in history.

Do not add funds without understanding why a withdrawal is restricted. Check positions, orders, settlement asset and the outstanding amount first. Retain the outgoing transaction identifier and verify receipt. The DEX directory and Hyperliquid guide compare alternative workflows without mixing balances between protocols.

Final checklist

Review these points before taking the next step.

  • I know whether I am using wallet or email access.
  • I chose spot or Pro before depositing.
  • Source and destination use the same asset and network.
  • I identified the contract fee category.
  • I chose margin and size before submitting.
  • I understand funding and exit orders.
  • I checked negative balances and the withdrawal route.

Common mistakes

Small checks for a more considered decision.

Using another product’s funding network

Email access and the documented spot route do not automatically share deposit instructions.

Applying 0.04% to every contract

Group B and other categories have their own fees.

Expecting to change margin mode later

Choose Cross or Isolated before submitting a position or an open order.

FAQs

How can I access Aster without an existing wallet?

Email access uses a verification code, password and a linked wallet. The documented deposit route uses USDT on Arbitrum One; follow it rather than spot funding instructions.

Must I buy ASTER to use Pro?

Not as a general requirement of this workflow. ASTER has specific uses, including optional spot-fee payment, but does not replace the required trading balance or collateral.

Can I change Cross to Isolated with an open order?

The margin documentation says the mode cannot be changed after submitting a position or an open order. Choose before opening and review existing orders.

Why must I rebalance before withdrawing?

With multiple collateral assets, losses, funding or fees can leave a negative settlement-asset balance. It must be resolved to release the withdrawal.