Perpetuals, without handing over your keys

Trade perpetual futures from your browser. Your signing key is derived from a passkey each time you use it — there is no seed phrase to write down, and no server that can sign for you.

Start trading Read the docs

01

This is the desk

Chart, order book, order ticket and positions in one screen — the same one on a laptop and a phone, in Persian or English, light or dark. Nothing below is a mock-up: it is the running app.

The trading screen, as it ships.

02

What this is

Relayed, never signed

PerpX builds your order and forwards it to the venue. It never signs one — your key does that, on your device.

A passkey, not a seed phrase

Your signing key is regenerated from your passkey at the moment you sign. Nothing to write on paper, nothing to lose.

03

How it works

  1. Create a passkey

    Your device's fingerprint, face or PIN. No password, no recovery phrase.

  2. Fund the account

    From an exchange account, or from a chain wallet you already hold.

  3. Trade

    Order book, chart, leverage, take-profit and stop-loss — the whole desk.

  4. Withdraw

    Back out the way it came in. Each withdrawal is confirmed with your passkey.

04

Where the key lives

The key that signs your orders is derived inside a browser origin of its own, separate from the page you are looking at. The app page can ask it to sign; it cannot read the key, because one document cannot reach into another origin. PerpX holds no private keys — not yours, not anyone else’s.

app page

Draws the screen. Builds the order. Never sees the key.

origin boundary

the order, to be signed
the signature, and nothing else
the key itself blocked by the browser

signer origin

Rebuilds the key from your passkey, signs, and drops it. Nothing is stored.

Two things cross this line. The key is not one of them.

How signing works

05

Getting money in and out

Fund from an exchange account or from a chain wallet, and withdraw the same way. Which routes a given deployment offers depends on where it runs — the app shows you the ones you can actually use.

06

Docs and API

Documentation

Margin, liquidations, funding rates, order types — and how to get money into an account.

Read the docs

Trading API

Programmatic access with a key you issue yourself. The key is an agent: it can trade, and it cannot withdraw.

Read the API reference

Ready when you are

Creating an account takes one touch of your fingerprint sensor.

Start trading