Keycard Pal
Requires a Keycard hardware smart card (keycard.tech). The app talks to the card over NFC: no USB, no Bluetooth.
Your wallet and Keycard Pal talk through animated QR codes. The wallet shows a request, you review it in Keycard Pal, tap your card, and show the signature back. No network connection is needed for any of it.
Features:
- Sign Ethereum transactions (legacy, EIP-1559, EIP-2930)
- Sign EIP-712 typed data with decoded preview before approval
- Sign personal messages (EIP-191 / SIWE)
- Sign Bitcoin transactions via PSBT
- Sign Bitcoin messages (BIP-322)
- Export wallet keys to MetaMask, Rabby, Ledger Live, Sparrow, BlueWallet, and Bitget via UR QR codes
- Generate a key pair on the card, or import a recovery phrase (BIP-39) or SLIP-39 shares
- Genuine Keycard check
- No telemetry, no analytics, no account
Keycard Pal comes in two builds:
- Keycard Pal Offline (com.keycardpal.offline) has no internet permission. It cannot make a network connection.
- Keycard Pal (com.keycardpal) has the internet permission for optional features: WalletConnect, ENS names, transaction simulation with Tenderly, and token images. Each one is off until you turn it on in Settings. WalletConnect needs your own Reown Project ID and simulation needs your own Tenderly API key.
Keycard Pal is free and open-source software.
Advertisement: the Buy a Keycard links in this app are affiliate links. The developer earns a commission on purchases made through them. No app feature depends on buying through them, and every feature of the app is free.
负面特征
此应用有一些你未必喜欢的特征。 了解更多!
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此应用包含广告
Buy a Keycard entries open an affiliate link to the Keycard shop, and the developer earns a commission on purchases made through it.
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此应用推广或完全依赖于非自由的网络服务
Optional features, all disabled by default, connect to network services that are not free software. WalletConnect uses the Reown relay with a project ID you provide yourself, transaction simulation uses Tenderly with an API key you provide yourself, ENS names are looked up through a public Ethereum RPC endpoint you can change, token images are downloaded from CoinGecko, GitHub and CoinMarketCap, and clear-signing descriptors are downloaded from a GitHub address you can change. Signing by QR code works without any of them.
捐赠
版本
尽管下面提供了 APK 安装包的下载选项,但你应该注意,以这种方式安装将不会收到更新通知,这是一种不太安全的下载方式。 我们建议你安装使用 F-Droid 客户端。
下载 F-Droid-
arm64-v8a该版本需要 Android 7.0 及以上版本。
此包由原始开发者构建并签名,并保证对应于此源代码 tarball。
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armeabi-v7a该版本需要 Android 7.0 及以上版本。
此包由原始开发者构建并签名,并保证对应于此源代码 tarball。







