Lighter Protocol

Trade on Lighter - a zero-knowledge rollup orderbook DEX with millisecond latency and zero fees.

Quick Start (Read-Only)

CODEBLOCK0

What is Lighter?

• - Zero fees for retail traders
• Millisecond latency
• ZK proofs of all operations
• Backed by Founders Fund, Robinhood, Coinbase Ventures

API Endpoint: https://mainnet.zklighter.elliot.ai
Chain ID: 300

⚠️ Security Considerations

Third-Party Dependencies

This skill can work with just requests library for read-only operations. For signing orders, you have two options:

Option A: Minimal (Read-Only)

pip install requests

Option B: Full Trading
Requires the official Lighter SDK. Review and verify before installing:

• - SDK Repository: https://github.com/elliottech/lighter-python
• Verify the repository owner, stars, and code before running any setup

External Code

Only proceed with external SDK if you:

1. 1. Have reviewed the GitHub repository
2. Understand what the code does
3. Use a dedicated burner wallet, not your main wallet

Environment Variables

Setting Up Your Credentials

Step 1: Get your L1 Address

• - This is your Ethereum address (e.g., 0x1234...abcd)
• Use the same wallet you connect to Lighter dashboard

Step 2: Get your Account Index

curl "https://mainnet.zklighter.elliot.ai/api/v1/accountsByL1Address?l1_address=YOUR_ETH_ADDRESS"

Step 3: Get your API Key

1. 1. Install Lighter Python SDK: INLINECODE5
2. Follow the setup guide: https://github.com/elliottech/lighter-python/blob/main/examples/system_setup.py
3. The SDK generates API keys tied to your account
4. Store the private key securely — never commit to git

Quick test (read-only, no credentials):
CODEBLOCK3

API Usage

Public Endpoints (No Auth)

CODEBLOCK4

Authenticated Endpoints

CODEBLOCK5

Getting Your Account Index

See "Setting Up Your Credentials" table above for the quick curl command.

Getting an API Key

See "Setting Up Your Credentials" table above for the step-by-step guide.

Common Issues

"Restricted jurisdiction":

• - Lighter has geographic restrictions - ensure compliance with their terms

SDK signing issues:

• - Use createmarketorder() instead of create_order() for more reliable execution

Market IDs

Links

• - API: https://mainnet.zklighter.elliot.ai
• Dashboard: https://dashboard.zklighter.io
• SDK: https://github.com/elliottech/lighter-python

Additional Examples

See USAGE.md in this skill folder for:

• - Detailed curl commands for all endpoints
• Order book and trade queries
• Account and position checks
• Signed transaction flow (nonce → sign → broadcast)

Disclaimer: Review all external code before running. Use dedicated wallets for trading.