Tools

Lib Wallet

Lib Wallet is a self-custody browser extension for Chrome, Edge and Brave, made for LibChain: lib1 addresses, a built-in faucet, swipe to confirm, and a standard EIP-1193 provider for dApps.

Testnet preview. Lib Wallet hasn't had an independent security audit yet. Use it only with test coins. Real-value networks are switched off in testnet builds.

#What it does

Self-custody. Keys are created and stored on your device, encrypted with scrypt and AES-256-GCM. They never leave the browser.
Lib Testnet built in. lib1 addresses with the 0x form underneath, the faucet in its own tab, and activity linked to Lib Explorer.
Accounts. 12 or 24-word recovery phrases, several wallets and derived accounts, private-key and keystore import, watch-only accounts, encrypted backups.
Safe confirmations. Every signature or transaction opens in its own approval window with the full addresses, and you confirm by swiping.
Tokens and collectibles. ERC-20, ERC-721 and ERC-1155 sends, token import, allowance review and revoke.

#Install

A Chrome Web Store release is on the roadmap. Until then, testers get a build from the LibChain team and load it as an unpacked extension:

Unzip the build
You'll get a folder with manifest.json inside.
Open the extensions page
chrome://extensions in Chrome, edge://extensions in Edge, brave://extensions in Brave.
Turn on Developer mode
The switch is in the top right corner.
Load unpacked
Choose the unzipped folder. Lib Wallet opens its welcome tab; create or import a wallet.

#For dApp developers

Lib Wallet injects a standard EIP-1193 provider and announces it with EIP-6963, so it shows up next to other wallets instead of replacing them. It never pretends to be MetaMask.

TypeScript

window.addEventListener('eip6963:announceProvider', (e: any) => {
  const { info, provider } = e.detail
  if (info.name === 'Lib Wallet' || provider.isLibWallet) {
    // prefer Lib Wallet on LibChain
  }
})
window.dispatchEvent(new Event('eip6963:requestProvider'))

Detect Lib Wallet by its name or provider.isLibWallet. Its EIP-6963 rdns identifier may change before the store release.

#Supported requests

Method	Notes
`eth_requestAccounts`, `eth_accounts`	Per-site permission (EIP-2255)
`eth_chainId`
`eth_sendTransaction`	Reviewed and confirmed in the approval window. The wallet sets the nonce; `accessList` isn't supported
`personal_sign`	Shows text or hex. Sign-In with Ethereum domain or chain mismatches are flagged
`eth_signTypedData_v4`	EIP-712, shown field by field. `domain.chainId` must match. Permits and unlimited approvals are flagged
`wallet_switchEthereumChain`, `wallet_addEthereumChain`	Returns `4902` for an unknown chain. An added network's RPC must report its chain ID before the user is asked
`wallet_watchAsset`	Add a token to the wallet
`wallet_requestPermissions`, `wallet_getPermissions`, `wallet_revokePermissions`
`eth_sign`, `eth_signTypedData` (v1, v3), `eth_signTransaction`, `eth_sendRawTransaction`, `eth_subscribe`, `eth_decrypt`, `eth_getEncryptionPublicKey`, `wallet_sendCalls`	Rejected Error `4200`. Use `personal_sign`, `eth_signTypedData_v4` and `eth_sendTransaction`

Read-only calls (eth_call, eth_getBalance, eth_getLogs and so on) are forwarded to the network's RPC. Errors use the standard EIP-1193 codes: 4001 rejected by the user, 4100 not authorised, 4200 unsupported, 4902 unknown chain.