LazorSwift

The fastest way to build Passkey-native Solana apps.

Built for the LazorKit Bounty, LazorSwift demonstrates a premium, high-conversion onboarding flow using biometric authentication and gasless transactions. It abstracts away seed phrases, private keys, and gas fees, delivering a Web2-like experience on Web3 rails.

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Key Features

Zero-Friction Auth

• Hardware-Bound Passkeys: Securely login with FaceID, TouchID, or Windows Hello.
• Non-Custodial: Keys never leave the user's Secure Enclave.
• No Seed Phrases: Eliminates the comprehensive risk of phishing and loss.

Gasless & Atomic

• Sponsored Transactions: integrated Paymaster automatically sponsors SOL fees.
• Batch Transfers: Send to multiple recipients in a single, atomic transaction.
• USDC Support: Native support for SPL tokens and "Pay with Token" flows.

Developer Ready

• Embeddable Widget: A "Pay with Lazor" component ready for any React app.
• Real-time QR: Dynamic QR code generation for instant wallet sharing.
• Unified Config: Centralized environment management for easy switching between Devnet/Mainnet.

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Architecture

LazorSwift leverages Account Abstraction to decouple the signer (Passkey) from the account (Smart Wallet).

sequenceDiagram
    participant User
    participant App as LazorSwift UI
    participant Lazor as LazorKit SDK
    participant PM as Paymaster
    participant Solana as Solana Devnet

    User->>App: Click "Connect Wallet"
    App->>Lazor: Request Passkey Auth
    Lazor->>User: Biomtric Prompt (FaceID/TouchID)
    User-->>Lazor: Biometric Signature
    Lazor->>App: Return Smart Wallet Address (PDA)
    
    Note over App, Solana: Gasless Transaction Flow
    
    User->>App: Click "Send SOL"
    App->>Lazor: Build Transaction Instruction
    Lazor->>PM: Request Sponsorship
    PM-->>Lazor: Signed Transaction (Payer)
    Lazor->>Solana: Send Atomic Transaction
    Solana-->>App: Confirmation Signature
    App->>User: Show Success Toast

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Tech Stack

• Framework: Next.js 15 (App Router, Turbopack)
• Styling: Tailwind CSS 4 + Radix UI
• Icons: Lucide React
• Blockchain: Solana (Devnet)
• SDK: @lazorkit/wallet
• Notification: Sonner

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Quick Start

1. Clone & Install

git clone https://github.com/0xsupremedev/lazor-swift.git
cd lazor-swift
npm install

2. Install LazorKit SDK (for your own project)

npm install @lazorkit/wallet @solana/web3.js

3. Environment Setup

Create a .env.local file (optional, defaults work for Devnet):

# Solana RPC URL (defaults to Devnet)
NEXT_PUBLIC_RPC_URL=https://api.devnet.solana.com

# LazorKit Portal (for passkey authentication)
NEXT_PUBLIC_LAZOR_PORTAL_URL=https://portal.lazor.sh

4. Run Dev Server

npm run dev

Open http://localhost:3000 in your browser.

5. Try the Demo

• Connect your wallet using a local Passkey (FaceID/TouchID/Windows Hello)
• Use the Session Info card to grab some Devnet SOL from the airdrop
• Try the Batch Transfer to send to multiple addresses at once
• Scan the QR Code to receive funds from mobile wallets

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Tutorials

Step-by-step guides for integrating LazorKit:

Tutorial	Description
Product Flow	End-to-end technical & user journey
Passkey Login	How to add passkey-based wallet authentication
Gasless Transactions	How to send SOL/tokens without gas fees
Session Persistence	How to handle multi-device sync and reloads

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Components

Component	Description
<ConnectWallet />	Handles Passkey registration and login state.
<SessionInfo />	Dashboard showing SOL/USDC balances and Airdrop button.
<BatchTransfer />	Form for executing multi-recipient atomic transactions.
<RequestPayment />	Generates a live QR code for the user's Smart Account.
<PaymentWidget />	Embeddable checkout card with clipboard utilities.
<ActivityFeed />	Live stream of recent Smart Account transactions.

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License

MIT © 0xsupremedev