Fee
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Fee Structure:The Helix bridge fee includes two parts:
Fees | Explanation | Tip |
---|---|---|
Gas Fee | the transaction fee paid in your wallet to miners. | This is just like any transaction on a blockchain network. |
Msg Bridging Fee | the fee paid to bridging provider for relaying the msg across chains | The cost of this part varies according to the integrated bridge. |
Helix doesn't charge any more fees than these two parts from a user.
The only fees you need to pay are Gas fees (for transactions), and Msg Bridging fees (fee paid to bridging provider).
- Msg Bridging Fee for each type of bridge
From-To | Provider | Pay with_token | Fee cost |
---|---|---|---|
Ethereum → Darwinia * | Helix | RING | decided by message relayer |
Darwinia → Ethereum * | Helix | RING | decided by message relayer |
Arbitrum → Ethereum * | Helix | RING | decided by message relayer |
Note: Since transactions (Ethereum<>Dariwinia) are involved on the Ethereum network, there will be a relatively high cost of gas fee to pay. The users can decide when to initiate the transaction based on the real-time gas price on the Ethereum chain.
You can calculate Ethereum gas fees by multiplying the gas limit of a transaction with the existing gas price.
gas Fee = gas limit * gas price
Getting the gas limit
from-to gas limit Ethereum → Darwinia 100,000~130,000 Darwinia → Ethereum 500,000~600,000 Getting the gas price
If you are on Ethereum mainnet you can check Etherscan's gas tool to estimate today's gas price. Please note the gas price fluctuates; always refer to the gas station to see the current gas prices. (1 gwei=0.000000001 ETH)
So with all that in mind, here is an example of a basic gas fee calculation.
Let’s say that Alice wants to make a transaction from Ethereum to Darwinia on Helix. The current gas price is 18 gwei. The live Ethereum price today is $1,000 USD per ETH.
The gas calculation formula is: 130,000 (gas limit) * 18 (gwei) * 0.000000001 (ETH) =0.00234 ETH
or you can say that Alice has to pay US$2.34 for the transaction from Ethereum to Darwinia.