Kotlin SDK Introduction

Build Web3 Android apps with authentication, embedded wallets, and blockchain integration.

Features

Authentication: Email, SMS, social login (Google, Apple, Farcaster, Discord, Twitter, Facebook, GitHub), passkeys, and external JWT.

Wallets: Non-custodial wallets for EVM chains (Ethereum, Polygon, Base, etc.), Solana, Bitcoin, TON, and SUI.

Blockchain: Send transactions, sign messages, and interact with smart contracts across EVM, Solana, Bitcoin, TON, and SUI.

Security: MFA/TOTP, passkey management, and recovery codes.

UI: Built-in authentication and profile screens with Jetpack Compose.

Quick Overview

The SDK uses modern Android patterns:

• Access SDK via DynamicSDK.getInstance()
• Observe state changes with Kotlin Flow
• Handle async operations with coroutines
• Build UI with Jetpack Compose

Prerequisites

Getting Started

• Installation Guide - Get started with the SDK
• Authentication Guide - Implement email OTP, SMS OTP, and passkey authentication
• Social Authentication Guide - Set up social login with Google, Apple, and more
• Session Management - Reactive state management with Kotlin Flow

Wallet & Blockchain

• Wallet Creation - Wallets are automatically created after authentication
• Wallet Management - Manage user wallets and balances
• EVM Operations - Perform EVM transactions and smart contract interactions
• Solana Operations - Send Solana transactions

Advanced Features

• MFA - Multi-factor authentication with TOTP
• Passkeys - Passwordless authentication with biometrics

📱 Complete Example App: Check out the Android SDK Example App for a fully functional Android app demonstrating all SDK features including authentication, wallet management, MFA, passkeys, social login, multi-chain transactions, and blockchain integration with Jetpack Compose.