MetaMask Login is a popular cryptocurrency wallet known for its ease of use, availability on both desktops and mobile devices, the ability to buy, send, and receive cryptocurrency from within the wallet, and collect non-fungible tokens (NFTs) across two blockchains.Read more... As such, there is no flat fee on Metamask Wallet.Its gas fees depend on the state of Ethereum. While some users hope the Ethereum gas fees after the merge could drop.