Risk Warning: Algorithmic trading carries significant financial risk. Past performance does not guarantee future results. You may lose some or all of your capital. Trade at your own risk.
Lighter
Zero-fee on-chain order book · Ethereum L2 · ZK rollup
Not connected
⚡ Zero trading fees
🔒 ZK proofs
📈 Limit & market orders
🔑 Up to 256 API keys
🐍 Python SDK
Quick setup — 3 steps
1. Go to app.lighter.xyz and create an account
2. Navigate to Account → API Keys and generate a new key
3. Paste the API Key and Secret below, then click Connect
2. Navigate to Account → API Keys and generate a new key
3. Paste the API Key and Secret below, then click Connect
Lighter is a zero-fee on-chain exchange on Ethereum (Arbitrum). Your funds stay in your own wallet — PULSAR only submits orders on your behalf via the API key.
API Key