> For the complete documentation index, see [llms.txt](https://docs.infinitetrading.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.infinitetrading.io/additional-references/what-is-ethereum/metamask.md).

# MetaMask

MetaMask reference for Infinite Trading users

MetaMask is a self-custody wallet used to sign transactions and interact with EVM applications.

## Role in Infinite Trading workflows

MetaMask can be used for:

* wallet connection to the application interface
* token approvals for vault interactions
* deposit and withdrawal transaction signing
* network switching across Ethereum, Optimism, Base, Arbitrum, and Polygon

## Setup checklist

1. Install MetaMask from the official source.
2. Create or import a wallet.
3. Back up seed phrase offline.
4. Add required networks.
5. Fund the wallet with native gas tokens for each network in use.

## Security baseline

* verify domain and contract details before signing
* review token allowance scope for each approval
* avoid storing seed phrase or private keys in cloud notes or chat systems
* use hardware-wallet integration for larger balances

## Practical notes

* transaction cost depends on network conditions
* bridge transfers should be confirmed before vault deposit attempts
* failed transactions generally consume gas and should be retried only after root-cause review