Build Mini Apps

A Mini App is a web app that runs inside CrackPay and uses the CrackPay user's wallet. Install the SDK, and your app is connected the moment it loads.

npm install @crackpay/miniapp-sdk
Read the docsSubmit a Mini App

Getting started

What are Mini Apps?How a Mini App runs inside CrackPay and talks to the wallet.Quick startScaffold an app, connect, read a balance, send a payment.Test in CrackPayDeveloper mode, a test URL, tunnels, debugging.FAQThe questions that come up first.

Build with AI

CrackPay skillsSkills for Claude Code, Cursor, Codex and others.Single-file SKILL.mdThe whole guide in one file, for coding agents.Skills on GitHubnpx skills add crackedstudio/crackpay-skills

Guides

Wallet connectionThe provider, auto-connect, viem, React and wagmi.UI and containerFrame size, sandbox, storage, navigation.Smart contractsCalling your own contracts from a smart account.Bringing an existing dAppWhat to change in an app you already have.DeploymentHTTPS, and letting CrackPay frame your app.Get listedThe listing file, the requirements, the review.

Reference

SDK referenceEvery export of @crackpay/miniapp-sdk.Provider methodsWhat the wallet answers, and what it refuses.Error codesWhat each rejection means and what to do about it.Arc networkChain, tokens, and USDC's two decimal scales.ExamplesWorking apps to read and copy.

The documentation lives at docs.crackpay.xyz.