Getting started on NyxGo

This guide takes you from a fresh browser to your first closed trade on NyxGo. NyxGo is a non-custodial trading interface: your funds stay in your own account on the exchange NyxGo connects to, and the orders you place are signed in your browser and sent straight to the exchange. Optional agents can also trade for you from NyxGo’s servers, with a separate key and within limits you sign.

What you need

• A browser wallet. NyxGo connects to EVM wallet extensions such as Rabby or MetaMask. It lists the wallets it detects in your browser. On a phone, open NyxGo in your wallet app’s built-in browser.
• USDC on Arbitrum in your wallet. NyxGo doesn’t hold or move funds for you: deposits and withdrawals are transactions you sign in your own wallet.
• A few minutes. The setup is a handful of wallet signatures. Signing in and enabling trading cost no gas.

As you go, the main button in the order form shows your next step: Connect wallet, then Sign in to trade, then Enable trading, and finally Buy / Long or Sell / Short.

Connect and sign in

1. Select Connect at the top right of the app, or Connect wallet in the order form.
2. Pick your wallet from the list and approve the connection in the wallet.
3. Select Sign in. Your wallet asks you to sign a message that begins “Sign in to NyxGo. This request will not trigger a transaction or cost any gas.”

Signing proves you own the address and starts your NyxGo session, which you need for trading, your profile, posting and following. If you switch to a different account in your wallet, NyxGo signs you out so the session always matches the connected address.

Fund your account

NyxGo never takes custody of your deposits. The Account section under the order form has Deposit and Withdraw buttons: a deposit sends USDC from your wallet on Arbitrum into your own trading account using Circle’s Cross-Chain Transfer Protocol (CCTP), and a withdrawal, signed in your wallet, sends it back to that wallet on Arbitrum.

You need a little ETH on Arbitrum to pay gas for the deposit transaction itself, but trading is gasless. The minimum deposit is 5 USDC, and Circle deducts a flat transfer fee (currently 0.20 USDC) from each deposit — NyxGo shows the exact amount before you confirm. Withdrawals cost a flat 1 USDC exchange fee, and a new account pays a one-time 1 USDC activation fee with its first withdrawal.

Double-check first: Confirm the network, the asset and the amount before you approve a deposit in your wallet. Blockchain transfers are final, so a quick check keeps your funds heading exactly where you mean them to.

Deposit before the next step. If your account on the exchange doesn’t exist yet, enabling trading fails, and NyxGo asks you to deposit USDC first.

Enable trading

Once you are signed in, the order form button reads Enable trading. Select it to open a short setup, signed with your wallet. It costs no gas and moves no funds.

• Approve a trading key. NyxGo creates a trading key in your browser and asks your wallet to approve it on the exchange, which calls these keys API wallets. The key can place and cancel orders for your account and move USDC between your own accounts on the exchange, but it can never withdraw your funds. It is what lets NyxGo submit orders without a wallet pop-up for each one. You renew the approval every 30 days with a quick signature, and signing out revokes it on the exchange.
• Approve the NyxGo fee. When a platform fee is active, a second step shows the fee in basis points. It is charged by the exchange on filled orders as a builder fee.

The trading key is stored in this browser only. On another browser or device, after you sign out, or when the 30-day renewal comes round, you enable trading again. Under Settings in the account menu, the Trading section shows whether your key is active and lets you remove it from this browser.

Two keys, one required

NyxGo works with up to 2 keys, and only the first is needed to trade:

• The trading key lives in your browser and signs the orders you place yourself. It can only sign while NyxGo is open in that browser, though the orders it places stay on the exchange.
• The Agents key is optional, and only for agents such as DCA, trailing stop and grid strategies. You set it up separately on the Agents page, your wallet approves it for 30 days, and NyxGo holds it to run your agents while you’re away. It can place and cancel orders, but unlike the trading key it can’t move USDC even between your own accounts, and it can never withdraw. You can revoke it at any time.

Place your first order

Open a market, for example BTC, or pick one from Markets. You can switch markets with the picker at the top left of the trade screen, or press / or Ctrl+K (Cmd+K on a Mac) to search. Then:

1. Check leverage. The top of the order form shows the margin mode and your leverage for this market. Select the leverage to change it. Lower leverage leaves more room before liquidation. See Leverage and margin.
2. Choose a side. Buy / Long if you expect the price to rise, Sell / Short if you expect it to fall. On desktop, the B and S keys switch sides.
3. Choose Market or Limit. Market fills now within your max slippage. Limit waits for your price. Order types in NyxGo explains both.
4. Enter a size in the coin or in USD. The minimum order value is $10. Starting small while you learn is sensible.
5. Review the summary. Check Order value, Margin required, Est. fee and, for market orders, Max slippage and the worst price.
6. Submit. Select Buy / Long BTC or Sell / Short BTC. A notice confirms the fill with its size and average price, or shows that a limit order was placed.

On a phone, the Buy / Long and Sell / Short buttons at the bottom of the trade screen open the order form in a panel.

Perpetual futures are high risk, and nothing here is financial advice. Before you size real trades, read Risk management basics.

Close the position

Your trade now appears in the Positions tab below the chart, with its size, entry and mark price, PnL (ROE), Liq. price, margin and funding. To close it:

• Market close at the end of the row sends a reduce-only market order for the full position.
• For a specific exit price, place a limit order in the opposite direction with Reduce only ticked. It can only close the position, never open a new one the other way.
• To set exits in advance, select the position’s TP / SL column and add a take profit, a stop loss or both. They rest on the exchange until triggered.
• With more than one position open, Close all closes every position after you confirm.

The Trade history tab then shows the fills, each with its fee and closed PnL. To take funds out, use Withdraw in the Account section and sign the withdrawal in your wallet; the exchange charges a small withdrawal fee.

Key takeaways

• Connect a browser wallet and sign a gasless message to sign in. NyxGo never takes custody of your funds.
• Deposit and withdraw USDC from the Account section, and fund your account before enabling trading.
• Enabling trading approves a browser-stored trading key that can place and cancel orders but never withdraw. You renew it every 30 days, and signing out revokes it.
• Agents use a separate, optional Agents key that NyxGo holds. It can’t withdraw either, and you can revoke it any time.
• Set leverage, choose side, order type and size, then review value, margin and fees before you submit.
• Close with Market close or a reduce-only limit order, and check the result in Trade history.