# Gas efficient contracts

## What is gas in Ethereum Blockchain (and other EVM)?

Gas is the fee required to successfully conduct a transaction or execute a contract on the Ethereum blockchain platform. Fees are priced in tiny fractions of the cryptocurrency ether (ETH in Ethereum). Its price is determined by supply, demand, and network capacity at the time of the transaction.

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It determines the cost of deploying a Collection on the chosen Blockchain (take a look at our supported [EVM Blockchains](https://docs.nfts2me.com/features/multichain)). Depending on the chosen Blockchain, its cost may be quite relevant, so having gas efficient contracts is quite important. Specially on the contract deployment, which can be quite expensive on Ethereum Mainnet.

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We have developed contracts to be as **efficient** as possible and **save** you as much **gas** as possible while keeping **great functionalities** and **versatility**.

We'll soon include a comparative of how much you save using our contracts both for deploying as well as minting.