Overview

React Native / Expo adapter for LazorKit smart wallets on Solana. Users authenticate with a device passkey (Face ID, Touch ID, screen lock) through the LazorKit portal — your app never touches private key material.

Why this SDK

• No seed phrase. Passkey-based WebAuthn, synced via iCloud Keychain / Google Password Manager.
• No gas. A Kora paymaster sponsors every transaction — users don't need SOL.
• Programmable wallet. Vault + authority PDAs, ranks (Owner / Admin / Delegate), on-chain spending limits.
• Confirmed sends. Every send resolves once its transaction is confirmed.
• Session keys. One prompt mints a scoped Ed25519 signer — subsequent sends are prompt-free.
• Deferred execution. Sign a single challenge to authorise multi-instruction payloads that exceed the single-tx size limit.

How it fits together

┌──────────────┐    deep link     ┌────────────────┐   signs   ┌──────────────┐
│  your app    │─────────────────▶│ LazorKit Portal│──────────▶│   passkey    │
│  (RN/Expo)   │◀─────────────────│  (WebAuthn)    │           │ (OS / browser)│
└──────┬───────┘    redirect URL  └────────────────┘           └──────────────┘
       │
       ▼ build tx / finalize
┌──────────────┐    relay via    ┌──────────────┐
│   SDK        │────paymaster───▶│   Solana     │
└──────────────┘                 └──────────────┘

The adapter is a JavaScript package: it opens the LazorKit portal in the system browser (expo-web-browser), the portal runs the WebAuthn ceremony, and the result comes back to your app on its redirect URL. The SDK builds instructions, finalises the passkey signature, submits through the paymaster, and waits for confirmation.

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