Lockx is a non-custodial asset security system that provides on-chain NFT Lockboxes for your self-custody wallet. Each Lockbox is a secure vault minted directly to your wallet represented by ERC-721 non-fungible tokens (NFTs) that can wrap and secure Ethereum based assets such as ETH, ERC-20 tokens, and ERC-721 NFTs. Every Lockbox requires 2 signatures to access its secured assets, one from your main wallet that owns the Lockbox, and one from the Lockbox signing key itself, effectively creating a 2-of-2 multisig model, where both the NFT owner and the external signing key must participate to authorize transactions.

Every Lockbox is decentralized and autonomously powered by our professionally audited Lockx smart contract, which enforces soulbound properties (non-transferability), multi-asset management, and multisig authentication ensuring your assets remain securely linked within your wallet even after a compromising attack. When you create your Lockbox, you have the choice of using your own compatible signing key or our proprietary zero knowledge key system, which uses zero knowledge proofs to create unique signing keys based on your existing signature.

Lockx charges a one-time platform fee to mint your Lockbox with your choice of key management, with core functionality such as deposits and withdrawals within your Lockbox having no integrated fees or limits. Swaps incur a 0.1% transaction fee.

Self-Custody Keys ($9.99) - You provide and manage your own Ethereum based signing key, maintaining full control and responsibility over your key management and security. Payment accepted in ETH, USDT, or USDC.

Lockx zero knowledge keys ($19.99) - Your Lockbox keys are created from your wallet signature through our zero knowledge key system, where you prove signature ownership with a zero knowledge proof which we use to create keys that are linked to and secure your Lockbox. Our system never stores created keys, as your zero knowledge wallet signature temporarily recreates your keys whenever you need to use it. Payment accepted in ETH, USDT, or USDC.

All keys created by our zero knowledge system can have their seed phrase recreated and exported in full ensuring zero reliance on our systems. We also enforce 2FA authentication as a layer of authentication to recreate your zero knowledge keys ensuring even a full private key compromise of your main wallet cannot recreate any key without the correct 6 digit rotating code stored on your mobile device. We are compatible with all mobile authentication applications such as Google Authenticator, Twilio Authy, and Microsoft Authenticator.

Our zero knowledge keys work by creating a zero knowledge hash and proof of your existing wallet signature which is used to create a unique Ethereum key that is used as the signer for your Lockbox. During every operation, whether it's for key creation, withdrawals, or swaps, you produce your zero knowledge hash which our system verifies against your proof, validating your signature and creating your key without ever needing to reveal it.

Whenever you want to access your Lockbox, you recreate your original zero knowledge hash which is used to sign an expiring authorization signature for your Lockbox. After use, all references to your zk hash and key are discarded, ensuring there is no persistent storage of any sensitive material stored at all in memory or on our servers, mitigating risk of admin abuse or malware compromise.

Our system comes with the added benefit of never needing to manage or maintain additional keys, as your existing wallet can create multiple unique zero knowledge hashes that can be linked to different Lockboxes.

While hardware wallets and multisig are excellent at protecting your wallet keys and preventing unauthorized signatures, they typically do not protect against user-error and sophisticated attacks, such as malware and phishing attacks. Instead Lockx operates on a different layer, directly protecting your assets within a token that any wallet can own, instead of providing proprietary wallet infrastructure that requires migration or hardware.

Even if your main wallet is compromised, the assets within your Lockbox remain protected since they inherit the soulbound / untransferable properties of its parent Lockbox and cannot be transferred or moved out of your wallet without the additional signature from the Lockbox's unique signing key. This gives you precious time to recover your assets to a fresh wallet, should your main wallet fall victim to an attack.

Yes, Lockx is professionally audited by OpenZeppelin, the leading smart contract security firm trusted by Ethereum, Coinbase, and other major DeFi protocols. We leverage their battle-tested ERC721 (NFT) smart contracts and security contracts as our foundation, ensuring maximum compatibility and compliance with industry standard best practices. Our audit report is published on OpenZeppelin and our site, which can be accessed at any time.