We have already covered the major portion of gasless transactions in the last part . So, in this part we will look at the tools we have to implement gasless meta transactions in our dapp.
Gasless transactions are made possible by a network of Ethereum relayers.
What is a relayer? When you attempt to make a transaction on the Ethereum blockchain, your transaction needs to be processed by the miners in order to get written on the blockchain. These miners are incentivized to process your transaction since they can collect gas fees for their work. That’s where relayers come in - they relay your transactions to the miners and collect your gas payment for you. They allow you to effectively skip two steps (sending ETH and then broadcasting a transaction) when using MetaMask.
When you use MetaMask with Gasless, it will automatically send your transaction through one of these relayers who will charge 0%, usually 1% or 2% with some networks offering different rates depending on what type of token is being used. It’s important to note that while Gasless allows you to send transactions without having any ETH in your wallet, this doesn’t mean that no gas was used or paid for - it just means that it wasn’t paid for from within your wallet but rather from somewhere else like an external source or reserve (gas fee pools) implemented by dApps or DEXes themselves, another user or even a pre-funded account linked up within MetaMask itself.
A GSN is an EIP 1193 compliant infrastructure that allows dapps to delegate gasless transactions to relayers running in the GSN. In other words, the relayers pay for each transaction, with the dappmaker reimbursing them in some way; the dapp can either reimburse the relayer with funds deposited by the user through the dapp (e.g., wallet or exchange), or tokenize some piece of the value offered by their application, and reimburse the relayer with that token.
1. The user can pay gas in any token.
2. It allows users to pay for gas in fiat without going through the hassle of KYC.
3. Allow dapps to subsidize the onboarding process for new users
To know more about gsn, head over to
Now, let's look at the easy way to implement gasless tranasactions
Biconomy is a relayer network for blockchain applications that provides a layer abstraction over the blockchain. Developers can use Biconomy to build scalable blockchain applications without having to worry about managing keys, gas, metamask pop-ups, and long transaction times. In short, Biconomy is a one stop shop and easy way to integrate the entire meta-transaction stack into your application.
Biconomy allows you to transact on blockchains like Ethereum or Matic Network securely with no risk of failure due to a lack of funds or fluctuating gas prices. In addition, it reduces development time by allowing developers to focus on building their apps rather than managing key and account management complexities, along with transaction handling logic.
Biconomy has a simple user interface which makes it easy for developers to develop and ship gasless dapps.
To dive deep and understand more about biconomy relayer infrastructure
Head over to this link.
Now , Let's compare the two methods to get a better understanding of what to choose for our Dapp.
We have now successfully covered the why,what and how of gasless transactions.
Now it's your turn to decide which method to choose for implementing gasless transactions for your dapp
Keep learning , keep exploring