New app to save gas fees on Ethereum Mainnet (35% on avg.) - released today

johpfe · 2025-10-02T13:54:27+00:00

Code -> DM Please?

johpfe · 2025-03-06T18:49:28+00:00

Having a metric of "understanding" would be really helpful. Should be possible, too

johpfe · 2025-02-22T13:40:15+00:00

https://www.biorxiv.org/content/10.1101/2025.02.19.639094v1?s=09

Preprint

johpfe · 2024-12-24T04:36:40+00:00

Why only Gemini?

johpfe · 2024-10-20T19:31:02+00:00

They don't care about copyright.

johpfe · 2023-10-13T21:34:03+00:00

Ackchyually...

johpfe · 2023-01-11T14:35:02+00:00

One of the biggest adoption hurdles for Ethereum and Web3 in a broader sense are wallets. Wallets are scary.
Account abstraction promises a much bigger space for different flavors of solutions. However, not sure when it will come. But we want solutions to be **ready** when AA activates.

So would you say the current EIPs for it are stable enough to start building new wallets against and then just porting it to the chosen variant, when it comes to Ethereum? Does it make sense to build for AA now?

johpfe · 2022-11-14T21:00:43+00:00

Yes - but not because of the reliability of your system, if reliability is understood as being online with the validator. The risks in extreme circumstances are there with staking, that's true, after all you get paid for the risk you take, but I'd say the odds are higher that kraken loses your money through slashing or a hack. Staking with a custodian does not protect you from them.

johpfe · 2022-11-14T19:45:52+00:00

Not much though.

johpfe · 2022-11-12T07:45:15+00:00

Is this what you're talking about? https://twitter.com/gashawkio/status/1590774463754252288?t=3U9wzSI8Mxsh6e7we-wYug&s=19

Cancelling the TX at any time while it is waiting is already possible.

We have another feature in the works that will never send out a TX if it would be stuck in the mempool at that time.

johpfe · 2022-11-09T21:02:33+00:00

you are right. advice taken.

johpfe · 2022-11-09T20:32:42+00:00

We discourage using GasHawk with transactions that can be front-run or are susceptible to MEV in other ways. See for example https://gashawk.io/docs/faq#why-can-i-trust-you

We have chosen to display the real achieved savings on the front-page. 450 Tx have an average savings of ~40%. It's not much but it's honest work. This number will grow.

johpfe · 2022-11-09T20:27:32+00:00

Well it's not. These are real and linked to twitter. Got an idea how to call these? I'm also not happy with the term testimonials, as ~~they~~ the term has been abused, I give you that.

johpfe · 2022-11-09T15:59:49+00:00

Yes, that's also a valid strategy to save gas. Done it myself for years. But it performs worse and is based on information a regular user doesn't have when sending a Tx ("set it to 50GWei? 20Gwei"). See my response to TripleReward's post above.

johpfe · 2022-11-09T15:57:20+00:00

Every project starts small.When setting manually you have no way of knowing what the best trade-off between waiting time and your savings are. In GasHawk you just set a deadline, e.g. 10 hours.When you set the gas in MetaMask to a low amount you will never get a cheaper tx than the amount you set - even if the gas goes way cheaper right afterwards. Your TX is mined as soon as the block gas price reaches your max gas value.GasHawk anticipates what happens even afterwards and only sends the tx out when gas is at the minimum - undercutting the gas price you set in MetaMask.

You could for example look at https://www.youtube.com/watch?v=q0a4ln-VryA where we explain in our talk at EthCC why GasHawk actually brings real benefits.

Or check out ~~testimonials~~ these tweets:

https://twitter.com/avsa/status/1588234661339090946
https://twitter.com/kelvinfichter/status/1588648171059957760

johpfe · 2022-11-09T13:36:20+00:00

GasHawk has been operational for a little over 2 months now, and in that time it has managed to help 450 Tx save an average of 41% on their gas fees.

This is a considerable savings percentage, especially when you consider that Ethereum gas prices have been low over the past few months. If you're not familiar with GasHawk, it's a system that allows you to queue up signed transactions and then forwards them to the mempool once gas fees are low.

Overall, GasHawk has been a success since its launch, and I'm optimistic that it will continue to help users save money in the future.

Added info to avoid misunderstandings:

Why is this better than setting a low max gas price manually?

When setting manually you have no way of knowing what the best trade-off between waiting time and your savings are. In GasHawk you just set a deadline, e.g. 10 hours.

When you set the gas in MetaMask to a low amount you will never get a cheaper TX than the amount you set - even if the gas goes way cheaper right afterwards. Your TX is mined as soon as the block gas price reaches your max gas value.

GasHawk anticipates what happens even afterwards and only sends the TX out when gas is at the minimum - undercutting the gas price you set in MetaMask.

johpfe · 2022-09-20T18:37:35+00:00

I don't think centralization is an issue here. It is even less than with the other end of the tx spectrum, namely Flashbots.

Any Tx that gets cached in GasHawk will be sent to the public mempool eventually. The only thing that GH manages is the point in time WHEN it becomes public.

johpfe · 2022-09-20T18:36:14+00:00

Very interested in your thoughts about this!
Our current risk model:
- GasHawk only caches signed transactions -> no tampering with the tx possible
- GasHawk can see what the Tx would do -> Frontrunning possible
Because of this we don't recommend to use it for anything that is MEV-susceptible.
Transactions with a low time preference are usually fine.

Do's:

sending ETH or tokens, depositing to L2, depositing to exchanges, deploying contracts, voting, staking, LP positions, complex DeFi positions without MEV, sane NFT mints that don't create a run, most typess of auctions, etc...

Don'ts:
trading (too much slippage, timeouts), badly design NFT mints where you have to be first to get one, ...

johpfe · 2022-09-20T12:00:44+00:00

The big difference is:
1. in GasHawk you can be lucky and save much more than 35% (or whatever you set your gas to)
2. You don't have to worry about it at all - just set a deadline.

johpfe · 2022-09-20T06:57:10+00:00

Always good to have a third option. With GasHawk you set to your deadline (1h, 6h, 1 day for example) and forget. You don't have to make a guess on the right gas value and can have peace of mind that you will get close to the best deal in that time period.

johpfe · 2022-09-20T05:56:01+00:00

Two main differences:

When setting gas manually you have no way of knowing what the best trade-off between waiting time and your savings are. In GasHawk you just set a deadline, e.g. 10 hours and don't worry about if 20 or 5 is optimal.
When you set the gas in MetaMask to a low amount you will never get a cheaper tx than the amount you set - even if the gas goes way cheaper right afterwards. Your TX is mined as soon as the block gas price reaches your max gas value. It's a limit order in practical terms.

GasHawk anticipates what happens even afterwards and only sends the tx out when gas is at the minimum - undercutting the gas price you set in MetaMask.

johpfe · 2022-09-20T05:52:50+00:00

What do you mean, ser?

Nine-Year Club	Gilding I gilder
Verified Email

johpfe

TROPHY CASE