SCANPROVE
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Launch Intelligence for Developers

Day 1 Is Viral.
Day 3 Is The Graveyard.

Deployment scanner for Next.js, Supabase, and Stripe apps. Built from 27 real production failures.

45% of AI-generated code introduced OWASP Top 10 vulnerabilities — Veracode 2025 Research

Scan my app now →See how it works

$ scanprove analyze --stack next+supabase+stripe

→ Running 27 rules...

🚨 CRITICAL — sk_test_ key detected in production

🚨 CRITICAL — STRIPE_WEBHOOK_SECRET missing

⚠️ WARNING — localhost in BASE_URL

✅ SAFE — Supabase URL valid

✅ SAFE — NEXT_PUBLIC keys correct

Safety Score: 42/100 — NOT READY TO SHIP

27

Rules From Real Failures

45%

AI Code Has Vulnerabilities

2min

Average Fix Time

100%

Keys Stay On Your Machine

sk_test_ detected in production — real users, fake charges
Missing STRIPE_WEBHOOK_SECRET — payments succeed but app never knows
NEXT_PUBLIC_ on secret key — exposed to every browser
localhost in BASE_URL — works locally, breaks in production
RLS disabled on users table — anyone can read your database
Webhook secret wrong environment — silent failure every time
Vercel env var changed — forgot to redeploy, still broken
Stripe test price ID in live mode — checkout fails silently
SUPABASE_SERVICE_ROLE_KEY exposed — full database access to anyone
No request size limit — large payload attack possible
sk_test_ detected in production — real users, fake charges
Missing STRIPE_WEBHOOK_SECRET — payments succeed but app never knows
NEXT_PUBLIC_ on secret key — exposed to every browser
localhost in BASE_URL — works locally, breaks in production
RLS disabled on users table — anyone can read your database
Webhook secret wrong environment — silent failure every time
Vercel env var changed — forgot to redeploy, still broken
Stripe test price ID in live mode — checkout fails silently
SUPABASE_SERVICE_ROLE_KEY exposed — full database access to anyone
No request size limit — large payload attack possible
NEXT_PUBLIC_SUPABASE_URL=https://xyz.supabase.co ✅
STRIPE_SECRET_KEY=sk_live_... stored server side only ✅
STRIPE_WEBHOOK_SECRET=whsec_... verified on every request ✅
NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJ... safe for browser ✅
SUPABASE_SERVICE_ROLE_KEY=eyJ... server side only, never public ✅
NEXTAUTH_SECRET=... random 32 char string ✅
RESEND_API_KEY=re_... server side only ✅
BASE_URL=https://yourapp.com — no localhost in production ✅
RLS enabled on all tables — data protected from day one ✅
Safety score 95 — ready to ship with confidence ✅
NEXT_PUBLIC_SUPABASE_URL=https://xyz.supabase.co ✅
STRIPE_SECRET_KEY=sk_live_... stored server side only ✅
STRIPE_WEBHOOK_SECRET=whsec_... verified on every request ✅
NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJ... safe for browser ✅
SUPABASE_SERVICE_ROLE_KEY=eyJ... server side only, never public ✅
NEXTAUTH_SECRET=... random 32 char string ✅
RESEND_API_KEY=re_... server side only ✅
BASE_URL=https://yourapp.com — no localhost in production ✅
RLS enabled on all tables — data protected from day one ✅
Safety score 95 — ready to ship with confidence ✅
🔒Private Key Guard
🛡️No-Upload AI
🕵️Incognito Debugging
📱100% On-Device
🗑️Delete Anytime

Where are you right now?

Pick your starting point

🧙

I want to build

Safe sandbox. Personalized plan. No judgment. No leaks. Answer 7 questions and get your first command in 2 minutes.

Start building →🔍

I'm ready to deploy

Paste your .env file. We scan it locally. Your keys never leave your machine. Get a safety score before you ship.

Scan my config →🚨

I'm stuck

Tell us what broke. Private AI explains it in plain English. Nobody sees your code. Get moving in minutes.

Get unstuck →

The difference

Without vs With ScanProve

Without ScanProve

✗Test Stripe key ships to production
✗Missing webhook secret — payments fail silently
✗localhost in BASE_URL — app breaks at launch
✗RLS off — users can read each other's data
✗Real users find your mistakes first
✗Hours of debugging at 2am

With ScanProve

✓Caught before deploy — fixed in 2 minutes
✓Webhook verified — app knows every payment
✓Safety score 95 — ship with confidence
✓RLS on — data protected from day one
✓Zero user-facing errors at launch
✓Sleep before launch day

Zero-Leak Debugging

Your Code Is Invisible To Us

Beginners are scared to ask for help because they do not want to leak secrets or show bad code. ScanProve fixes that. Your API keys stay on your machine. Your code never leaves your browser. Your learning process is 100% private.

🔒

Private Key Guard

Your API keys and secrets never leave your browser. Ever.

🕵️

Incognito Debugging

Your debugging session is private. We cannot see your code.

🛡️

No-Upload AI

Analysis happens locally. Nothing is sent to a server.

Who is behind ScanProve

Built From Real Mistakes

ScanProve was built by a solo founder who learned to code by building real products — MoveToday.io and other live apps. Every rule in the scanner and every step in the Build Wizard came from a real mistake made during a real build.

This is not AI guessing. This is hard-won experience packaged into a tool anyone can use. When you use ScanProve you are getting the same lessons that cost hours of debugging and real money to learn — the moment you sign up.

sk_test_ detected in production — real users, fake charges
Missing STRIPE_WEBHOOK_SECRET — payments succeed but app never knows
NEXT_PUBLIC_ on secret key — exposed to every browser
localhost in BASE_URL — works locally, breaks in production
RLS disabled on users table — anyone can read your database
Webhook secret wrong environment — silent failure every time
Vercel env var changed — forgot to redeploy, still broken
Stripe test price ID in live mode — checkout fails silently
SUPABASE_SERVICE_ROLE_KEY exposed — full database access to anyone
No request size limit — large payload attack possible
sk_test_ detected in production — real users, fake charges
Missing STRIPE_WEBHOOK_SECRET — payments succeed but app never knows
NEXT_PUBLIC_ on secret key — exposed to every browser
localhost in BASE_URL — works locally, breaks in production
RLS disabled on users table — anyone can read your database
Webhook secret wrong environment — silent failure every time
Vercel env var changed — forgot to redeploy, still broken
Stripe test price ID in live mode — checkout fails silently
SUPABASE_SERVICE_ROLE_KEY exposed — full database access to anyone
No request size limit — large payload attack possible
NEXT_PUBLIC_SUPABASE_URL=https://xyz.supabase.co ✅
STRIPE_SECRET_KEY=sk_live_... stored server side only ✅
STRIPE_WEBHOOK_SECRET=whsec_... verified on every request ✅
NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJ... safe for browser ✅
SUPABASE_SERVICE_ROLE_KEY=eyJ... server side only, never public ✅
NEXTAUTH_SECRET=... random 32 char string ✅
RESEND_API_KEY=re_... server side only ✅
BASE_URL=https://yourapp.com — no localhost in production ✅
RLS enabled on all tables — data protected from day one ✅
Safety score 95 — ready to ship with confidence ✅
NEXT_PUBLIC_SUPABASE_URL=https://xyz.supabase.co ✅
STRIPE_SECRET_KEY=sk_live_... stored server side only ✅
STRIPE_WEBHOOK_SECRET=whsec_... verified on every request ✅
NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJ... safe for browser ✅
SUPABASE_SERVICE_ROLE_KEY=eyJ... server side only, never public ✅
NEXTAUTH_SECRET=... random 32 char string ✅
RESEND_API_KEY=re_... server side only ✅
BASE_URL=https://yourapp.com — no localhost in production ✅
RLS enabled on all tables — data protected from day one ✅
Safety score 95 — ready to ship with confidence ✅