FAQ

Short answers to what people ask most.

The basics

What is xchange?

A place to swap coins with other people, in your browser or in Telegram; today Gaju, USDC and XGE. You place a bid to buy or an offer to sell; when someone's order meets yours, the trade settles on the blockchain, straight into your own wallet. How it works has the steps.

Who holds my money?

You do. Your wallet is made on your device and protected by your PIN, and xchange never has your keys or your recovery phrase. Only an order's amount leaves your wallet, into an escrow contract that pays it to the other side of a matched trade or back to you. xchange is software that matches orders and coordinates settlement; it never takes custody and never takes the other side of your order.

How do I start?

Open app.xchangehq.com or @xchangehq_bot, tap Make my wallet, choose a six-digit PIN and write down the twelve words it shows you. That is your wallet: a PIN and twelve words are all it asks.

What are Simple and Advanced?

Two views of the same book. Simple, where you start, takes an amount and buys or sells at the best price on the book, up to what is there. Advanced lets you name your own price and leave your bid or offer on the book until someone meets it. Switch at the top right.

Your wallet

What if I lose my phone, or forget my PIN?

Your twelve words restore the wallet on any device, with a new PIN. Keep them on paper. If the words are lost, nobody can recover the funds, including xchange. How to keep them safe.

Can I use the same wallet in Telegram and in the browser?

Yes. Enter the same twelve words in the other one and you are in the same account, with the same history and rewards.

How do I add funds?

Tap Wallet at the top right, then Add funds, pick the token and copy your address. Send to it from any wallet or exchange; it arrives in your own wallet.

Can I buy USDC with a card?

Yes: tap Buy USDC with a bank card in the wallet. Your Solana address is copied for you to paste on the payment page. A licensed provider handles the payment and the checks; xchange is not part of the purchase.

Which USDC can I send?

Only USDC on the Solana network. USDC sent on Ethereum, Base, Polygon, Tron or any other network is lost. Withdrawing from an exchange, choose Solana as the network.

Do I need SOL or Gaju for fees?

You need no SOL: xchange pays the Solana network fees and opens any account you need. Sending Gaju costs the network's 0.00002 Gaju, from your own Gaju.

Swapping

What are a bid and an offer?

A bid is an order to buy, an offer an order to sell. You choose the amount and the price. When a bid and an offer meet, they match on their own.

What happens to my funds while my order waits?

They are locked in an escrow contract on the blockchain, in your name. The contract does two things with them: it pays the person xchange matches with your order, or it sends them back to you when you cancel or the order expires after seven days. More in how escrow works.

How long does a swap take?

XGE for USDC, both on Solana, settles in under a minute. A Gaju leg is final one or two key blocks after it lands, about two to four minutes, which usually passes while the order waits on the book.

Can my order be filled in parts?

Yes. If someone wants less than you are offering they take that part, and the rest stays on the book.

Can I cancel?

Any time before it is matched; your funds come straight back to your wallet. A matched trade settles on chain and is final.

Who sets the price?

The people buying and selling, and nobody else. xchange does not set, suggest or limit prices, and no wallet app shows one for XGE: it changes hands only between people here.

Fees

What does a swap cost?

0.25% of what you receive, taken by the escrow contract when the trade settles, already inside the amount the screen shows before you confirm. Placing an order on Solana carries a network charge of a cent, in the asset deposited, to cover its transaction fees. An order that deposits Gaju carries none; its gas is your own. Cancelling and receiving are free.

What does sending from my wallet cost?

USDC or XGE: 0.05% of the first 1,000, 0.02% up to 1,000,000, 0.01% above, at least a cent. Sending $100 costs five cents. If the address has never held that token, xchange opens its account and pays for it. Gaju: no xchange fee. The exact fee is shown before you enter your PIN.

Gaju

What are Gaju and Gajumaru?

Gajumaru is a public blockchain and Gaju is its coin. xchange is an independent project built on it: the escrow that holds Gaju during a swap is a contract on Gajumaru.

Where do I get Gaju, and where can I keep it?

Buy it on xchange with USDC (the steps), or receive it from anyone who has it. Your xchange wallet holds it at an address starting with ak_; you can also send it to GajuDesk or any Gajumaru wallet.

Can I swap Gaju for USDC?

Yes, in either direction, on today's USDC / Gaju pair. Place an offer on USDC / Gaju and the USDC is paid to your wallet on Solana when a bid meets it. The steps.

Can I check a Gaju trade myself?

Yes. Every deposit, payout and refund is public on the Gajumaru explorer, and each trade in your history links to its transaction.

XGE

What is XGE and how do I earn it?

xchange's reward token on Solana: 100,000,000, fixed, shared with the people who use xchange, never sold by it. Each day half of a fixed pool goes to everyone whose trades settled, in proportion to their size, and half to people whose USDC sat in bids near the market price, up to 2,000 XGE a person. Bringing a friend earns you both 50 XGE once they have bought or sold $10. The full rules are in how XGE rewards work, and the live figures on the XGE page.

Can more XGE be created, or my XGE frozen?

No. The power to mint more and the power to freeze wallets were both given up permanently; anyone can verify this on chain.

Safety and help

How can I check xchange for myself?

Your funds stay in your wallet, or in a public contract that pays only the other side of a matched trade or you. Every trade can be checked on a block explorer. Until a second, independent check is added, xchange's one coordinator key names that other side. See Security for the addresses and what is still to come.

What if something goes wrong with a swap?

If a swap cannot complete, the escrow sends your funds back to you. Write to [email protected], or ask in the WhatsApp group.

Is xchange available where I live?

xchange is software you run from your own wallet. Use it only where it is legal for you to do so.

The quickest answer is to look

Open the app and see the live book before you make a wallet.

Try it

Still unsure? Write to [email protected].