Account Types

Premium Account (Opt-in) -- Suitable for HFT, the lowest latency on Lighter. Part of volume quota program.

Latency for maker & cancel orders is 0ms.

Staked LIT	Maker/Taker Fee Discount	Maker Fee	Taker Fee	Taker Latency	Latency Improvement
0		0.0040%	0.0280%	200 ms
1,000	2.5%	0.0039%	0.0273%	195 ms	2.5%
3,000	5%	0.0038%	0.0266%	190 ms	5%
10,000	10%	0.0036%	0.0252%	180 ms	10%
30,000	15%	0.0034%	0.0238%	170 ms	15%
100,000	20%	0.0032%	0.0224%	160 ms	20%
300,000	25%	0.0030%	0.0210%	150 ms	25%
500,000	30%	0.0028%	0.0196%	140 ms	30%

Standard Account (Default) -- Suitable for retail and latency-insensitive traders.

Maker Fee	Taker Fee	Taker Latency	Maker/Cancel Latency
0%	0%	300 ms	200 ms

Account Switch

You can change your Account Type (tied to your L1 address) using the /changeAccountTier endpoint.

You may call that endpoint if:

You have no open positions
You have no open orders
At least 24 hours have passed since the last call

Python snippet to switch tiers:

import asyncio
import logging
import lighter
import requests

logging.basicConfig(level=logging.DEBUG)

BASE_URL = "https://mainnet.zklighter.elliot.ai"

# You can get the values from the system_setup.py script
# API_KEY_PRIVATE_KEY =
# ACCOUNT_INDEX =
# API_KEY_INDEX =


async def main():
    client = lighter.SignerClient(
        url=BASE_URL,
        private_key=API_KEY_PRIVATE_KEY,
        account_index=ACCOUNT_INDEX,
        api_key_index=API_KEY_INDEX,
    )

    err = client.check_client()
    if err is not None:
        print(f"CheckClient error: {err}")
        return

    auth, err = client.create_auth_token_with_expiry(
        lighter.SignerClient.DEFAULT_10_MIN_AUTH_EXPIRY
    )

    response = requests.post(
        f"{BASE_URL}/api/v1/changeAccountTier",
        data={"account_index": ACCOUNT_INDEX, "new_tier": "premium"},
        headers={"Authorization": auth},
    )
    if response.status_code != 200:
        print(f"Error: {response.text}")
        return
    print(response.json())


if __name__ == "__main__":
    asyncio.run(main())

import asyncio
import logging
import lighter
import requests

logging.basicConfig(level=logging.DEBUG)

BASE_URL = "https://mainnet.zklighter.elliot.ai"

# You can get the values from the system_setup.py script
# API_KEY_PRIVATE_KEY =
# ACCOUNT_INDEX =
# API_KEY_INDEX =


async def main():
    client = lighter.SignerClient(
        url=BASE_URL,
        private_key=API_KEY_PRIVATE_KEY,
        account_index=ACCOUNT_INDEX,
        api_key_index=API_KEY_INDEX,
    )

    err = client.check_client()
    if err is not None:
        print(f"CheckClient error: {err}")
        return

    auth, err = client.create_auth_token_with_expiry(
        lighter.SignerClient.DEFAULT_10_MIN_AUTH_EXPIRY
    )

    response = requests.post(
        f"{BASE_URL}/api/v1/changeAccountTier",
        data={"account_index": ACCOUNT_INDEX, "new_tier": "standard"},
        headers={"Authorization": auth},
    )
    if response.status_code != 200:
        print(f"Error: {response.text}")
        return
    print(response.json())


if __name__ == "__main__":
    asyncio.run(main())

How fees are collected:

In isolated margin, fees are taken from the isolated position itself, but if needed, we automatically transfer from cross margin to keep the position healthy. In cross margin, fees are always deducted directly from the available cross balance.

Sub-accounts share the same tier as the main L1 address on the account.