ENTERPRISE-READY SAAS BOILERPLATE

Build faster.
Ship sooner.

The professional Next.js boilerplate for teams who need enterprise-grade quality, comprehensive features, and production-ready themes from day one.

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FEATURES

Everything your team needs

A complete foundation with authentication, payments, content management, and more built-in from the start.

🔒

Authentication & Authorization

Supabase-powered auth with Google OAuth, magic links, email/password, and role-based access control out of the box.

💳

Payment Processing

Integrated with Stripe, Lemon Squeezy, and Polar. Subscriptions, one-time payments, and webhook handling included.

📄

MDX Blog Engine

Full-featured blog with categories, syntax highlighting, RSS feeds, SEO metadata, and social sharing built-in.

🎨

5 Production Themes

Professional themes designed for different use cases. Switch with a single config change, no code modifications needed.

📦

E-commerce Ready

Product catalog, cart management, checkout flow, and order confirmation with transactional emails all wired up.

⚡

Edge-Optimised Deploy

Built on Next.js App Router with server components. Deploy to Vercel with zero configuration and global edge delivery.

DEVELOPER EXPERIENCE

One config file. Complete control.

Theme selection and customisation
Feature flags for auth, payments, blog
Payment provider configuration
Email provider setup

Everything is driven by a single configuration file. No scattered environment variables, no hidden settings. Change your theme, enable features, or swap providers in seconds.

mantle.config.ts

export default {
  "theme": "corporate",
  "database": true,
  "auth": {
    "providers": ["google", "magic-link"]
  },
  "payments": {
    "provider": "stripe"
  },
  "email": {
    "provider": "resend"
  },
  "blog": true,
  "ecommerce": true,
  "chat": {
    "provider": "crisp",
    "websiteId": "your-id"
  }
} satisfies MantleConfig

ENTERPRISE

Built for teams that demand reliability

Security, compliance, and performance standards your organisation requires, built into every layer.

🛡

SOC 2 Compliant

Architecture follows SOC 2 Type II compliance patterns. Audit logging, data encryption, and access controls included.

📈

99.9% SLA

Deployed on Vercel's edge network with automatic failover. Enterprise-grade uptime backed by infrastructure you can trust.

💬

Dedicated Support

Agency tier includes priority support with direct access to the engineering team. Response within 4 business hours.

TESTIMONIALS

Trusted by engineering teams

"MantleKit cut our development timeline by three months. The authentication and payment integrations alone saved us hundreds of engineering hours."

Sarah Kim

Engineering Lead

"The theme system is remarkably well-architected. We switched from Corporate to Bold for our consumer product and the transition was seamless."

James Mitchell

Technical Co-Founder

"Finally, a boilerplate that doesn't compromise on code quality. Clean architecture, proper TypeScript, and production-ready from day one."

Ana Rodriguez

Lead Developer, NovaTech

PRICING

Straightforward pricing

One-time payment. Lifetime updates. No subscriptions.

Starter

$49

One-time payment

1 theme
Authentication
1 payment provider
MDX blog
Email integration
Personal licence

Get Starter

Pro

$149

One-time payment

All 5 themes
All 3 payment providers
E-commerce module
Chat widget
Both email providers
Personal licence

Get Pro

BLOG

Latest from our team

Engineering

How We Reduced Build Times by 60%

A deep dive into our Next.js optimisation strategy and the tooling changes that made it possible.

Mar 15, 2026 · 8 min read

Product

Introducing the Corporate Theme

Professional, enterprise-ready, and built for teams who need their SaaS to look as serious as their product.

Mar 10, 2026 · 5 min read

Tutorial

Setting Up Stripe with MantleKit

Step-by-step guide to configuring Stripe checkout, webhooks, and subscription management.

Mar 5, 2026 · 12 min read

FAQ

Common questions

MantleKit is built on Next.js with the App Router, TypeScript, Tailwind CSS, and Shadcn/UI. Database and auth are powered by Supabase, with optional integrations for Stripe, Lemon Squeezy, and Polar.

The Agency tier ($249) includes a commercial licence that allows unlimited client projects. Starter and Pro tiers include a personal licence for your own products.

Change the theme property in mantle.config.ts. The entire application updates instantly with no code changes required. All themes use the same component architecture.

TEAM

Meet the Team

The people building the tools your team depends on.

Alex Lawson

Founder & CEO

Full-stack engineer with a decade of experience building developer tools and enterprise platforms.

Maya Kapoor

Head of Design

Previously at Linear and Figma. Leads the design system and ensures every theme meets enterprise standards.

Jordan Chen

Lead Engineer

TypeScript purist and open-source contributor. Architect of the theme engine, CLI tooling, and CI pipeline.

COMPARISON

How We Compare

See why engineering teams choose MantleKit over alternatives.

Feature	MantleKit	Others
Production-ready themes	✓ 5 themes	✗ 1–2 basic
Config-driven architecture	✓	✗
Multiple payment providers	✓ Stripe, LS, Polar	✗ Stripe only
Static & database modes	✓	✗
E-commerce module	✓	✗
One-time pricing	✓ From $49	✗ Subscription

ROADMAP

Our Journey

Key milestones in the development of MantleKit.

Q1 2026

Project Launch

Initial release with 3 themes, authentication, payments, and MDX blog engine.

Q2 2026

E-commerce & 5 Themes

Full e-commerce module and two additional themes: Corporate and Creative.

Current

CLI Setup & Theme Library

Interactive CLI setup and curated theme previews for faster project starts.

Roadmap

AI & Advanced Tooling

Expanded AI workflows, deeper analytics, and more advanced admin tooling.

Build faster.Ship sooner.