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. Kora paymaster sponsors every mutation — users don't need SOL.
• Programmable wallet. Vault + authority PDAs, role-based access (owner / admin / spender), on-chain spending limits.
• 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 portal handles the WebAuthn round-trip; the SDK builds instructions, finalises the passkey signature, and submits through the paymaster.

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