
Smart wallet for EOA accounts
Smart wallet for EOA accounts with support for EIP‑7702, ERC‑7821 (batch operations), gasless execution via off-chain signatures, ERC‑1271, and ERC‑7201 (secure namespaced storage).
This is a wallet where private keys are held by the user, and the service has no control over them. This setup gives users full control, but it also has downsides: if the seed phrase or key is lost, access usually cannot be recovered.
It’s a mobile app wallet. Convenient for daily operations.
These type of wallets work through a browser or extension. They are often used for dApps.
Installed on a computer, suitable for more «work-focused» scenarios and better environment control.
This is a wallet where users’ private keys are managed by a third party (for example, a platform or service). The advantage is that it’s easy to use, these wallets also have options for account recovery and user support. The downside is that the user is dependent on the rules and reliability of the custodian.
Wallets within an exchange or broker, where keys are stored on the platform’s side.
Wallets that are integrated into your service, where keys and operations are managed by your infrastructure or a custody provider.
We define who controls the keys and how access is managed: custodial or non-custodial model. This affects account recovery, risk profile, and requirements for protecting keys and operations.
We integrate crypto purchase and sale for fiat directly into your product: no unnecessary steps and with a clear UX. Integration is usually done through a provider that handles part of the procedures and compliance checks.
We set up the full transaction lifecycle: signing, sending, fees, statuses, and history. It’s important that both the user and the operations team can always see what happened and check the operation status.
For custodial scenarios, we add manageability: roles, limits, withdrawal rules, monitoring, and support processes. This turns the wallet into a tool that can be safely operated without deep onboarding.
If the product includes fiat rails or off-ramp, KYC checks and anti-fraud requirements are almost always required. We design this at the level of flows and integrations so that compliance doesn’t break the product after launch.
We’ll develop an exchange module with the ability to set custom fees and account for income in financial accounting. We’ll also implement gas-free transactions for users to lower the entry barrier and improve the user experience.

Smart wallet for EOA accounts with support for EIP‑7702, ERC‑7821 (batch operations), gasless execution via off-chain signatures, ERC‑1271, and ERC‑7201 (secure namespaced storage).

Developed the frontend for the Gearbox DeFi protocol with a TVL of over $31.6 million. The protocol enables efficient use of borrowed funds within the DeFi ecosystem.
Pawel KowalskiProject Manager
Alexander MazaletskyCTO
Danila ChestnykhCEO
Simon CheburashkinProduct Manager
Brett Lindstromfounder
Bogdan GavriletsCEO
Damon ZwarichCMO
WOWswapWOWswap Team
Roar HolteSolutions Architect / CEO