Introduction

Noether is a decentralized perpetual futures exchange on Stellar. Every order, match, and settlement executes in Soroban smart contracts — positions, liquidations, and funding payments are all on-chain transactions you can verify yourself.

At a glance

How it fits together

• Trade in the browser at noether.exchange with Freighter or LOBSTR (via WalletConnect). There is no exchange account — your wallet signs every transaction.
• Build against the gateway, a REST and WebSocket API that prepares transactions for you to sign locally. It never holds your keys. TypeScript and Python SDKs mirror the full API surface.
• The market contract holds all trading logic; the Liquidity Vault is the counterparty to every trade, and trading fees accrue to the vault — LPs earn them through the value of their NOE shares. Prices come from the Noeracle oracle: in-app trades go through the Noether Router, which relays a fresh signed price and executes the trade in one atomic transaction, and the market rejects any price older than 60 seconds.

Where to start

Popular pages

• Trading guide — orders, margin modes, fees, and liquidation from the trader’s point of view
• Authentication — wallet-signed challenges and bearer API keys
• WebSocket API — live tickers, trades, and account events
• TypeScript SDK — typed client for every endpoint plus a reconnecting WebSocket client
• API explorer — try every endpoint against the live gateway
• Contract addresses — the deployed Soroban contracts and how to verify them

Links