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Launch your SaaS without the security debt

Most templates ship fast and patch security later. We built it the other way around. Backend-only data access, Zod validation on every input, RLS by default. Optimized for AI coding agents so they follow the same security patterns you do.

Security First
RLS Enabled
Zod Validation
Server Actions Only
AI-Agent Optimized
Get SecureStartKitSee What's Included

Tech Stack

Next.js 15
Supabase
Stripe
Tailwind
React Email
shadcn/ui

Quick Setup

~5 min
git clone & npm install
30s
Add your API keys to .env
2min
npm run dev
Ready

Security that other templates skip

Most SaaS starters cut corners on security. Here's how we're different.

Data access

Client-side queries exposed to browser

Backend-only via Server Actions

Input validation

Optional or client-side only

Zod validation on every input

Database security

RLS disabled or wide-open policies

RLS enabled, deny all to anon

API keys

Anon key used for data queries

Service role key, server-side only

Auth flow

Client-side auth with exposed tokens

Server Actions with rate limiting

Webhooks

No signature verification

Stripe signature verified on every request

Everything you need to launch.
Nothing that compromises security.

Auth, payments, emails, database, blog, admin panel. All wired with backend-only data access, Zod validation, and RLS by default.

  • Email + password authentication
  • Google OAuth pre-configured
  • Server-side session handling
  • Rate-limited auth endpoints
  • Protected routes middleware
  • Magic link support
  • Security architecture: production-ready
New in v1.5

Claude Code Skills included.
Type a command. Ship content.

4 built-in slash commands that turn Claude Code into your growth engine. Blog posts, comparison pages, brand strategy, free tools - all from your terminal.

Terminal
$ claude
> /write-blog
Running blog writer...

Blog Writer

  • Finds low-difficulty, high-volume keyword opportunities
  • Generates complete MDX posts with frontmatter and internal links
  • Adds JSON-LD structured data and canonical URLs
  • Includes citations from real sources
  • Handles sitemap and metadata automatically

One price. Lifetime access.

Pay once, own it forever. Free updates included.

Starter

A secure SaaS foundation with auth, payments, and RLS built in

$199one-time
  • Full source code access
  • Next.js 15 + Supabase + Stripe
  • Authentication (email + Google)
  • Landing page components
  • Blog system with MDX
  • AI blog research & generation script
  • AI-ready (CLAUDE.md + .cursorrules)
  • 4 Claude Code skills included
  • Admin dashboard
  • Email templates (React Email)
  • i18n support
Most Popular

Pro

The full security-first stack with lifetime updates and priority support

$249one-time
  • Full source code access
  • Next.js 15 + Supabase + Stripe
  • Authentication (email + Google)
  • Landing page components
  • Blog system with MDX
  • AI blog research & generation script
  • AI-ready (CLAUDE.md + .cursorrules)
  • 4 Claude Code skills (/write-blog, /brand-frame, more)
  • Admin dashboard
  • Email templates (React Email)
  • i18n support
  • Priority support
  • Lifetime updates

Frequently Asked Questions

Built with SecureStartKit

Real products running on the same security-first foundation you get on day one.

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Stop patching security after launch.

Start with a foundation that gets auth, payments, and data access right from day one. One purchase, lifetime access.

Buy Now - from $199
SecureStartKit

The security-first Next.js SaaS template. Auth, payments, and everything you need to launch - with backend-only data access, Zod validation on every input, and built-in optimization for AI coding agents.

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Free Tools

  • Stripe Fee Calculator
  • RLS Policy Generator
  • SaaS Pricing Calculator
  • OG Image Preview
  • Security Checklist
  • Tech Stack Costs

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