Most ecosystem wallets require users to generate a new address before they can participate. Thanos Wallet’s private key import accepts any 64-character hex EVM private key directly — which means existing EVM accounts come in as-is, with their history and assets intact.
One of the quieter friction points in adopting a new wallet is the asset migration problem. A user who already holds EVM-based assets in an existing account — whether on MetaMask, a hardware wallet, or any other EVM-compatible interface — faces a choice when they want to use a different wallet: either stay where they are, or move everything to a new address generated by the new wallet. Moving is not free. It costs gas, it takes time, and it means the new address starts with no transaction history, no existing protocol positions, and no connection to any DeFi activity that was tied to the old address. For users with active positions or long account histories, this is a meaningful cost.
Thanos Wallet removes this constraint for EVM accounts through direct private key import. On the mobile app, choosing to import an existing wallet and selecting the private key path accepts any standard 64-character hex EVM private key — with or without the 0x prefix — and brings that account directly into the Thanos Wallet interface. No new address is generated. No asset migration is required. The account that was already being used, with its existing history, its existing balances, and its existing on-chain relationships, becomes accessible through Thanos Wallet immediately.
The significance of this for EVM users is concrete. An account that has been active across Ethereum, other EVM-compatible networks, and EVM-based assets does not need to be reconstructed to work with Thanos Wallet. The private key that controls that account is the import — and once imported, that account sits alongside any Lithosphere-native accounts and seed phrase-derived accounts within the same wallet interface. EVM assets managed through the imported key, LITHO and other Lithosphere ecosystem assets managed through the seed phrase, all accessible through one application.
This matters particularly for users entering the Lithosphere ecosystem who already hold EVM assets they want to continue managing. The typical path for such a user without private key import would be to run Thanos Wallet for Lithosphere ecosystem assets and a separate EVM wallet for everything else — the same multi-app problem that Thanos Wallet’s multi-chain design is intended to solve. Private key import means that EVM footprint can be consolidated into Thanos Wallet directly, without treating the migration cost as the price of entry.
There is also a meaningful security implication to how private key import is implemented. The imported key is handled locally by the wallet — it is stored in the same AES-encrypted local vault as seed phrase-derived keys, protected by the same password-gated access and optional biometric unlock. Importing a private key into Thanos Wallet does not transmit that key to any external service. The key lives on the device, under the same security model as everything else in the wallet, from the moment it is imported.
Seed phrase recovery and private key import serve different users and different starting points. A user setting up fresh will generate a seed phrase and derive accounts from it — one phrase, consistent derivation, full portability across BIP-compatible wallets. A user with an existing EVM account they want to bring in directly uses private key import and keeps that account exactly where it is, without the friction of starting over. Thanos Wallet supports both paths because the real-world Lithosphere ecosystem user base includes both, and a wallet that only accommodates one of them is not actually built for the ecosystem it claims to serve.
