Starknet Foundation Launches Bramble Wallet With STRK20 Shielding

The Starknet Foundation launched Bramble on Oct. 20, a self-custody wallet that lets users swap, store and shield crypto on Starknet.

Bramble is “only available as a Chrome extension for now,” its team said. The wallet sits in Chrome's side panel, keeping balances and transaction reviews beside the application a user has open.

The launch adds a Foundation-built option for using an existing privacy system. Starknet introduced STRK20 in June, with its rollout announcement naming Ready X and Xverse as wallets offering shielding and private swaps.

According to Bramble's documentation, users explicitly move public funds into the STRK20 privacy pool, where they become encrypted notes held separately from the ordinary wallet balance. Private transfers conceal the amount and counterparty from public observers.

That privacy has defined limits. Starknet's compliance documentation says deposits expose the depositor's address and describes a viewing-key mechanism that lets a designated auditor trace funds in response to a lawful request.

Bramble's account-abstraction features use programmable smart contract accounts. Its guide lists OpenZeppelin and Argent account contracts, Ledger hardware signing and Argent multisig accounts, where a specified number of participants must sign a transaction. New users set a local password, back up a recovery phrase and fund their account before deploying it.

Shielding and Shadow Accounts Are Different

Starknet's shadow accounts provide a separate, persistent identity for each user and application, hiding the link to the user's main wallet. The shadow account's balances, calls and protocol positions remain public, according to the network's integration guide.

That guide specifies Wallet API 0.10.4 and wallet support for STRK20 shadow-account methods, including `shadow_account_invoke`. Bramble's launch documentation describes balance shielding but does not specify support for those methods or session keys. For applications using shadow accounts, wallet-level shielding alone does not establish compatibility.