GMGN Fees ＆ Settings
✅Tips: You can get details of various transaction fees by querying the transaction hash at https://solscan.io/
1. GMGN Fee (no need to set)
GMGN only charges a 1% handling fee for a single transcation, and there are no additional charges. For users who have questions about transaction fees, please first check your priority fee and slippage settings.
The transaction amount in the figure is 1 SOL, and the GMGN fee is 0.01 SOL (WSOL is the token used for transactions on the Solana chain, 1 WSOL = 1 SOL)
2. Gas Fee (no need to set)
Note: Gas Fee refers to the fee that users need to pay to network validators when executing transactions or interacting with smart contracts, which is commonly known as on-chain fees.
Solana chain uses SOL as the gas unit
The ETH chain uses Gwei as the Gas unit because the price of ETH is high and the fee calculation is inconvenient: 1 ETH = 1,000,000,000 Gwei (9 zeros)
3. Slippage (need to be set)
1) Description: Slippage refers to the maximum acceptable deviation of the number of tokens declared for a single transaction. For example, if the slippage is 30% when buying, if the actual tokens received are between 70% and 100%, the on-chain transaction will be successful. If the actual tokens received are less than 70%, the on-chain transaction will fail (exceeding the slippage range).
2) The purpose of setting a slippage limit ratio is to ensure that you will not suffer unexpected losses due to slippage. Once the actual execution price exceeds the set slippage ratio, the transaction will be automatically cancelled.
3) When trading MEME, experienced traders will significantly increase slippage to cope with the sharp rise and fall caused by token FOMO and FUD sentiment, because the demand is to buy and sell quickly, and they don’t care how many tokens they can actually receive.
✅Tips: Manual buying and selling is recommended to be automatic; the recommended slippage for automatic buy/sell and other pending order operations is 30%-35%; for new and popular tokens, it is recommended to be 50% or more. Sometimes auto slippage has lag, can not guarantee 100% success, please be careful to follow your needs to trade
4. Anti-MEV mode (Anti-MEV sandwich attack) (need to choose whether to turn it on)
1) Note: The core attack method of the MEV bot is Sandwiching, which is the so-called sandwich attack, which is equivalent to the preemptive strategy adopted by high-frequency trading companies: in a typical sandwich attack, the MEV bot reads the incoming transaction information and preemptively executes the order, thereby pushing up the token price when you buy it.
The MEV bot detects your transaction and automatically generates a buy transaction before the block is packaged your trading. The transaction fee is higher than yours, so the robot's transaction is executed first.
After the bot's transaction is executed, due to the automatic market making mechanism, the unit price of the token will be raised, and the price increase will directly affect the subsequent transactions. Therefore, when it is your turn to trade, the token price has risen, and the actual number of tokens you get is not as much as when you first placed the order. This difference is also called the slippage amount. (But it is different from the normal slippage, which is the slippage caused by the MEV bot )
After our transaction is executed, the token price will continue to rise. At this time, the bot generates another transaction to sell the lower price bought in the previous transaction, just making a profit from the difference. The two transactions generated by the bot just sandwich our transaction, so we call it sandwich attack
2) Enabling Anti-MEV mode can effectively prevent transactions from being sandwiched, but the priority fee must be at least 0.002 SOL to enable it.
5. Priority fee, Tip fee, Custom RPC (need to be set)
Priority/Tip fee: max 2 SOL
1) Priority and Tip fee description:
Priority and tip fees are additional fees paid to speed up transaction processing, used to bribe nodes to prioritize your tx, and are not collected by GMGN
✅ Transaction on-chain fee = Priority fee + Tip fee + Gas
Priority fee: Paid to validators to prioritized confirmation. (minimum 0.0001 SOL)
Tip fee: Paid to private nodes for faster processing. (minimum 0.0001 SOL)
2) Anti-MEV RPC Submission
Off protection: transactions sent to all nodes, very fast
Reduced protection: transactions sent to limited nodes, fast, may be front-run
Secure protection: transactions sent to safe nodes, slightly slower, with compensation
⚠️ Note: For anti-MEV protection, the minimum Tip fee is 0.0001 SOL (a higher value is recommended, as low fees may result in slower on-chain processing during busy network conditions)
3. Custom RPC: You can choose to connect to a specific RPC server (self-hosted or third-party provided)
RPC Node: Transaction submission - Sends transactions to the blockchain for validation and recording
Custom RPC will be used as a backup RPC for simultaneous on-chain submission
If a custom RPC is used for submission, both priority and tip fees will be charged at the same rate
✅ Tips: For transactions with no speed requirement, a total on-chain fee of 0.002 - 0.005 SOL is generally sufficient. For auto buy/sell limit order placement, a fee of 0.006 SOL or higher is recommended. During busy network conditions, manually increasing the priority/tip fee is advised for faster tx confirmation
6. Token issuance platform fee (no need to set)
Note: For example, for tokens issued on Pump.Fun, a 1% handling fee will be charged by the Pump.Fun platform during transactions. For the specific handling fee ratio, please refer to the instructions of each token issuance platform.
If you have any questions, you can ask your trading questions in the official GMGN group 👇🏻:
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