Bring Bitcoin to your app now in minutes

You've thought about adding Bitcoin. Here's why you haven't done it yet. Every time you look into adding Bitcoin to your app, you hit the same wall: wallets, private keys, gas fees, node infrastructure, security audits. Suddenly it's a 6-month project that requires hiring specialists. It doesn't have to be. We built this so you don't have to Starkzap is an open-source TypeScript SDK that lets any application (web app, mobile app, backend service) integrate Bitcoin with no blockchain experience required. npm install starkzap That's your starting point. From there, you get: Gasless transactions. Built-in paymaster means your users never pay network fees. Social login. Google, Apple, email, passkeys. No seed phrases, no "write down these 12 words." Token transfers. BTC, USDC, ETH, and 50+ tokens. Single recipient or batch. Bitcoin staking. Real yield for your users, one line of code. Works everywhere. Web, React Native, Node.js. Same API across all platforms. Your users never see anything