Cold Storage Plugin
FreeModular Plugins (ERC-6900)
Cold Storage Plugin locks NFTs in a secure vault inside your smart wallet.
Ethereum
OP Mainnet Arbitrum
Ethereum OP MainnetModular Plugins (ERC-6900)
Cold Storage Plugin locks NFTs in a secure vault inside your smart wallet.
Ethereum OP Mainnet
Polygon
BaseThe Cold Storage Plugin keeps your NFTs safe inside your Modular Account even if the rest of your wallet is compromised, including the owner key.
Traditionally, NFT custody meant moving assets to a separate EOA and locking the private key in a vault, which prevented using NFTs for exclusive events.
This plugin introduces a dedicated storage key that can lock NFTs—covering all ERC721s, a full collection, or individual tokens.
Wallet owners can unlock or transfer locked NFTs by signing transactions with the storage key.
The plugin source: a separate storage key freezes chosen ERC-721s, so the tokens survive even if the account owner key is compromised.
How ERC-6900 splits validation, execution and hooks so a plugin like this can be installed without redeploying the account.
Security frameworks, smart contract reviews, and compliance alignment to reduce risk and protect users.
Modular Plugins (ERC-6900) • Ethereum
