Building Seamless Onchain Apps with Privy I Siddesh 0x

Thu, Oct 2, 2025, 12:00 AM

Learn how to build seamless onchain apps with Privy in under 15 minutes! In this step-by-step workshop, Siddesh from Privy’s Developer Success team walks you through integrating Privy into your ETHGlobal New York hackathon project. Discover how to onboard users instantly with social logins (Google, Twitter, email, phone) and automatic wallet creation, enable gasless transactions, and create multi-chain experiences without requiring users to switch wallets. You’ll see live coding examples in Next.js with Privy’s React SDK, learn to set up smart wallets with Coinbase and Alchemy, and send ERC-20 token transfers without native gas fees. Whether you’re building DeFi tools, NFT marketplaces, or social dApps, this guide shows how to improve user experience, boost security with non-custodial wallets, and leverage ultra-low latency performance. Perfect for Web3 developers, hackathon teams, and anyone wanting to create frictionless blockchain applications. 00:00 Introduction 00:31 What is Privy 02:23 Why teams choose Privy 04:35 Setting up Next.js project 05:28 Installing Privy SDK 06:15 Adding app and client IDs 07:30 Configuring wallet creation 09:34 Using Privy hooks 11:16 Social login integration 13:21 Automatic wallet creation 14:12 Multi-chain transactions 15:42 Enabling smart wallets 17:58 Smart wallet configuration 19:36 Creating a smart wallet 20:12 Requesting test tokens 22:15 Sending ERC-20 token transfer 23:46 Conclusion _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇺🇸 *ETHGlobal New York* This workshop is specifically for ETHGlobal New York, a 3-day hackathon held August 15-17, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal New York 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh4Xze0ZeSWCSGsw25clPpvZ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Privy* X: https://x.com/privy_io ✅ *Follow ETHGlobal* X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/c/ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Are you interested in Ethereum development and entrepreneurship?_ 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _