I have been using OpenClaw to write trading related tools recently. The exchange is very rough and just accepts the exchange API. The plan I have in mind is related to polymarket, hyperliquid, and possible future DeFi. The private key is stored in the onekey cold wallet. I swipe my fingerprint once for each transaction, and use whitelist for high-frequency transactions. If there is a program bug, the lobster will be taken over by hackers, and the private key can be taken offline through hot plugging, which is a safety net. Based on this requirement. The only options I can buy are Onekey Touch and Pro, which come with fingerprint signatures. Actually, this system is more difficult to write than I imagined, and the more I write, the more headache I get. I flipped through this post and casually learned some mechanisms of hyperliquid. As shown in the picture. Almost all hyperliquid mobile phone cases come with additional charges Builder Fee， Approximately 0.025% -0.1%. If you are a VIP1 user on an exchange with a monthly trading volume of 10 million U, it's really exaggerated - running several million U in a month and having your mobile wallet withdraw several cars in a year. Metamask draws 10u out of 10000 transactions, which is even higher than what Hyperliquid draws. There is a website here where you can find your order on hyperlquid https://(hypefees. com) How much buiderfee was withdrawn by the wallet project party (transaction fee is calculated separately) By comparison, I realized that @ OneKey is quite ruthless in this aspect（ http://app.onekey.so/r/MIIT1Q/app/perps ）： Perps directly charges 0% Frontend Fee (there are no additional fees for the wallet layer), which should be the only 0-pumped hyperliquid shell on mobile devices. And the experience can also be: Actually, my money on Onekey is used for arbitrage But even if you take out your phone, you can directly use your balance inside to do it US shares rwa， The perpetuity of tokens does not require jumping. Or the funds can be further divided into different warehouses The bottom layer is based on Hyperliquid, and transactions mostly follow the market opening. The sliding point control is also good (due to the low sliding point algorithm feature of hyperliquid) Risk control lines, take profit and stop loss are all directly visualized Overall, there is only one feeling when using it: There's really no need to continue drawing places that don't need to be drawn. I suggest everyone also check their own address, as there may be some 'new discoveries'. Change early, all the savings are real gold and silver.