Coins paired to real forex pairs, made to move together.

Everything about Fx, in one place.

Overview

Fx is a launchpad on Solana for coins that follow a real currency pair. Every coin is linked to one forex market: EUR/USD, GBP/USD, USD/JPY, AUD/USD, USD/CHF or USD/CAD. Its price moves with both its own trading and that pair's rate.

• Names and tickers can be copied by anyone. Always check a coin's address, not just its ticker.
• Each coin trades on its own curve, not a shared order book.
• Coins can be volatile and thin, and can lose all their value.

How prices work

A coin's price has two parts:

• Curve price. Set by the coin's own buying and selling. Every buy moves the price up the coin's curve, and every sell moves it down.
• Pair factor. How far the coin's forex pair has moved since the coin launched, scaled up so the move is easy to see. Each 1% the pair moves changes the coin's price by about 10%.

You trade at curve price × pair factor, where pair factor = (rate now ÷ rate at launch)^10.

Example. You launch a coin paired with EUR/USD when the rate is 1.1500. A week later the rate is 1.1615, which is 1% higher. The pair factor is about 1.10, so the coin trades about 10% above its curve price, even if nobody traded it that week. If EUR/USD had fallen 1% instead, the coin would trade about 10% below its curve price.

Every pair works the same way, as it's written: when USD/JPY goes up, a USD/JPY coin goes up. How far the pair factor can move is limited by the coin's pair buffer.

Pairs & price feed

Six major pairs are supported: EUR/USD, GBP/USD, USD/JPY, AUD/USD, USD/CHF and USD/CAD. A coin's pair is set at launch and never changes. We don't invent a pair that isn't a real, liquid forex market.

• Where rates come from. Fx reads forex rates from Pyth Network, a price feed that many Solana apps use.
• A smoothed rate. Fx follows a moving average of each pair over about the last hour, not every tick. A sudden spike can't jump a coin's price, and fast bots can't profit from seeing a move a moment before everyone else.
• When a pair freezes. The pair factor holds at its last good value while the forex market is closed (Friday evening to Sunday evening, New York time, and major holidays), when the latest rate is more than 60 seconds old, or when the feed reports unusually uncertain prices.
• Trading never stops. While a pair is frozen, its coins keep trading on their curve. Only the pair's effect pauses. When the feed is healthy again, the smoothed rate catches up gradually.

Pair buffer

Each coin has its own pair buffer: a pool of SOL that pays for the pair's effect on the price. It makes sure a coin can always pay every seller, however its pair moves.

• The buffer fills up from 30% of the coin's trading fees.
• When the pair has pushed the price up, the extra paid out to sellers comes from the buffer, and the extra paid in by buyers goes into it. When the pair has pushed the price down, it works the other way around.
• The pair factor can only move as far as the buffer can cover, in either direction. A new coin with a small buffer barely follows its pair. A busy coin with a big buffer follows it fully.
• The buffer belongs to the coin. Nobody can withdraw it, not the creator and not Fx.

How launches work

Deploying a coin sets its name, ticker, description and pair in a single step. There's no separate configuration screen, and after launch nothing about a coin can be changed, not even by its creator.

Bonding

Every coin starts in the New stage, trading on its launch curve. When buyers have put 85 SOL into the curve, the coin bonds and shows a Bonded badge in Explore.

• A one-time 2.5% bonding fee is taken from the curve's SOL.
• The rest of the SOL and the remaining tokens move into the coin's permanent Fx pool, which opens at the coin's last price.
• The coin keeps its pair link, its buffer and its full trade history. Nothing resets.
• The pool's money is locked for good. Nobody can withdraw it.
• Bonding isn't guaranteed. Most coins stay in New for as long as people trade them.

Explore's stage filter lets you browse New and Bonded coins separately, or view all.

Fees

Fx charges three fees: a $0.50 launch fee, a 1% trading fee on every buy and sell, and a one-time 2.5% bonding fee. Trading fees are split three ways: 40% to the coin's creator, 30% into the coin's own pair buffer, and 30% to Fx. The full breakdown is on the Revenue page.

Wallets & safety

Connect wallet asks your Phantom or Solflare wallet for your public address and nothing else. Your wallet shows an approval popup first, and you can disconnect at any time.

• Every trade opens a wallet popup. Before it does, Fx shows what the trade will do: the SOL you pay or receive, the tokens you get or sell, and the fee. Only approve if the popup matches.
• Fx will never ask for your private key or seed phrase. Any site that does is a scam, even if it looks exactly like this one.
• Fx will never message you first to offer help or a deal.
• Check the address bar before you connect, and bookmark the real Fx site.
• Keep your savings in a separate wallet that never connects to any site, and trade from a wallet that only holds what you plan to trade.

Security

• Fixed supply. Every coin has exactly 1 billion tokens. After launch, nobody can create more tokens or freeze anyone's tokens, not the creator and not Fx.
• Locked money. A coin's SOL and its pair buffer stay inside the Fx program. Nobody funds a coin's opening liquidity and nobody can withdraw it, so a creator can't pull the money out.
• Audit. An independent security firm audits the Fx program before it handles any real money, and the full report is made public.
• Open, verified code. The program's code is public, and the program running on Solana is verified to match it.
• Program changes. A multi-signature wallet controls upgrades, so no single person can change the program. Every change is announced 48 hours before it takes effect, so anyone who disagrees can sell first.
• The website. The site only runs its own code, blocks scripts from other sites, and can't be loaded inside another site.

Numbers at a glance

These are the launch settings. Any change to them is announced 48 hours ahead.

Public API

Fx has a read-only public API. No key is required, responses are JSON, and cross-origin calls are allowed. Everything it returns is also public on the Solana blockchain.

The coin list. Supports search, pair, stage, sort (newest, oldest, market_cap), and limit.

One coin's market cap, reference pair, bonding stage, and description.

Every forex pair a coin can reference, with how many coins are paired to each.

Risks

• You can lose everything you put into a coin. Only trade what you can afford to lose.
• The pair effect is scaled up: a small move in a forex pair makes a much bigger move in its coins, in either direction.
• Price feeds can be wrong, late or frozen. Fx's safety rules limit the damage, but they can't remove it.
• Young coins have small buffers, so they may barely follow their pair.
• Audited code can still have bugs.
• Trading can be thin, so a single trade can move the price a lot.
• Forex trading hours and weekend gaps carry through to every coin that follows a pair.
• Nothing on Fx is financial advice.

Terms of service

• Fx is software for creating and trading coins on Solana. Fx never holds your funds: your coins stay in your own wallet. Fx doesn't control markets or guarantee any outcome.
• Users create coins, not Fx. Fx doesn't review, endorse or guarantee any coin.
• A coin isn't a forex contract. Holding one doesn't give you any currency, or any claim on Fx or anyone else.
• You're responsible for following the laws where you live. Don't use Fx where coins like these aren't allowed.
• Fx can update these terms. Changes are posted on this page.

Privacy notice

• There's no sign-up, and Fx doesn't ask for your name or email. The site uses no cookies or trackers.
• Trades happen on the Solana blockchain, which is public. Anyone can see a wallet's address and its trades.
• If you connect a wallet, Fx only sees your public address.
• The site may save small things in your browser's storage. They stay on your device.
• The site is hosted on Cloudflare, which handles basic connection data, like IP addresses, to deliver and protect the site.