Patch your

stack

Not your sanity.

StackPatch is a CLI that installs opinionated, battle-tested features like Auth, Redis, Payments — directly into your existing Next.js app.

Terminal
Press 'b' to go back
Next.js
+
NextAuth.js
Build production-readyauthenticationin minutes

StackPatch

The easy solution to feature integration

StackPatch has all the features you need to add production-ready functionality to your existing app without restructuring or boilerplate bloat.

Auto-detection

Instantly scans your project to identify frameworks, folder structures, and key configuration files enabling StackPatch to apply changes safely with zero manual setup, no matter how customized your codebase is.

Scanning project structure
14:08
Found app/ directory
Detected at 14:09
Detected Next.js 16
Detected at 14:10
Found existing layout.tsx
Detected at 14:11
Scanning dependencies
Detected at 14:12

Smart code injection

Injects code only where needed, respecting your existing structure and conventions.

app/layout.tsx
import {"{ AuthSessionProvider "}
+
from "@/components/session-provider"
export default function RootLayout() {"{"}
+
return (
+
{"<"}AuthSessionProvider{">"}
{"{children}"}
+
{"</"}AuthSessionProvider{">"}

File tree preview

See exactly what files will be added before applying the patch.

app
api
auth
route.ts
providers.ts

Zero configuration

Works out of the box. No config files, no setup required. Just add the patch and go.

$ npx stackpatch add auth
✓ No config needed
✓ Auto-detected framework
✓ Ready to use
Patch applied successfully

You own the code

All generated code lives in your repo. No magic, no black boxes, just clean, readable code.

Your Code
app/api/auth/route.ts
✓ Fully editable
✓ No dependencies

Seamless Integration Workflow

StackPatch seamlessly integrates authentication into your Next.js app with zero configuration. Watch how it connects all the pieces together.

Next.js App

Auth Components

Fully Reversible

Changed your mind? No problem. StackPatch tracks every change it makes, allowing you to safely revert any installation with a single command.

Terminal
$npx stackpatch add auth
Detecting project structure...

All changes are tracked in .stackpatch/manifest.json for safe reversion