# MantleKit

> Next.js SaaS boilerplate with 20+ built-in modules — auth, payments, ecommerce, admin dashboard, blog, AI assistant, and more. One-time purchase from $49, lifetime access, no subscription fees.

MantleKit is a production-ready Next.js 16+ SaaS starter kit built for indie developers and agencies who want to skip months of boilerplate setup and ship their first SaaS product quickly. It bundles authentication, multiple payment providers, a full ecommerce storefront, CMS, admin dashboard, support ticketing, and 14 more modules into a single codebase installable in one command. Unlike subscription-based alternatives, MantleKit uses a one-time purchase model with lifetime access and free infrastructure tier compatibility (Vercel + Supabase + Stripe), enabling a complete SaaS launch for approximately $65 total.

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## Core Pages

- [Home](https://mantlekit.dev): Complete product overview featuring a feature comparison table against ShipFast and MakerKit, eleven current theme previews, one-command installation demo (`npx create-mantlekit`), and tier pricing summary. Primary value proposition: "The SaaS boilerplate that ships with everything."
- [Pricing](https://mantlekit.dev/pricing): Detailed breakdown of four one-time-purchase tiers with feature-by-feature comparison matrix. Landing ($49, personal license, 1 theme, static sites only). Starter ($79, personal license, adds auth, 1 payment provider, transactional email, blog comments). Pro ($149, personal license, all payment providers, ecommerce, admin dashboard, CMS, forms, kanban, AI assistant, teams). Agency ($249, commercial license, unlimited client projects, priority support, all Pro features). 14-day money-back guarantee on all tiers.
- [About](https://mantlekit.dev/about): Company background, team information, and product development history.
- [Changelog](https://mantlekit.dev/changelog): Dated release log from March–April 2026. Documented releases: Comment Moderation dashboard (Apr 10), Admin Teams/Calendar (Apr 9), Homepage comparison table (Apr 9), Support Tickets (Apr 8), Dashboard AI with MantleKit-aware context (Apr 8), Supabase-backed admin security roles (Apr 8), Bold theme cleanup (Apr 7), CMS/Forms/Media/Kanban modules (Apr 7), initial product launch (Apr 4), and design specification phase (Mar 26–30).

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## Pricing Details

- **Landing — $49** (Personal License): 1 theme, landing page components, MDX blog, blog comments excluded, 1 email provider, no auth/payments/ecommerce/admin
- **Starter — $79** (Personal License): Everything in Landing + Supabase auth (email/password + OAuth), 1 payment provider, transactional email, blog comments and social features
- **Pro — $149** (Personal License): Everything in Starter + all 3 payment providers (Stripe, Lemon Squeezy, Polar), all themes, ecommerce storefront with inventory, full admin dashboard, CMS, kanban, calendar, analytics, teams, AI assistant, support tickets, comment moderation, form builder, media library
- **Agency — $249** (Commercial License): Everything in Pro + unlimited client projects, priority support, commercial use rights
- **Refund Policy**: 14-day money-back guarantee on all tiers
- **Upgrade Path**: Upgrade later with price difference applied on request
- **License**: Personal tiers (Landing/Starter/Pro) are for use on your own projects only. Agency license required for building products for clients.

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## Tech Stack

- **Framework**: Next.js 16+ with App Router, TypeScript, React Server Components
- **Styling**: Tailwind CSS, Shadcn/UI component library
- **Database**: Supabase (PostgreSQL) — free tier: 500MB storage, 50K monthly active users
- **Authentication**: Supabase Auth — email/password, Google OAuth, GitHub OAuth, database-backed admin roles
- **Payments**: Stripe, Lemon Squeezy, Polar — no setup or monthly fees; transaction-based only
- **Email**: Resend (3K/month free), Mailgun (1K/month free), Brevo (~9K/month free)
- **AI Chat**: OpenAI, Anthropic (Claude), OpenRouter — MantleKit-aware system context
- **Chat Support**: Tawk.to widget integration
- **Hosting**: Vercel (optimized, free hobby tier for most projects), Railway, Fly.io, DigitalOcean, self-hosted Node.js
- **Rendering**: SSR and SSG via Next.js App Router
- **Requirements**: Node.js 18 or later

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## 20+ Built-in Modules

1. **Authentication** — Supabase Auth with email/password, Google OAuth, GitHub OAuth, session management, admin roles
2. **Payments** — Stripe, Lemon Squeezy, and Polar integration with webhook handling and subscription management
3. **Ecommerce** — Full product storefront with inventory management, cart, and checkout
4. **MDX Blog** — Server-rendered blog with SEO metadata, OG images, comments, and social sharing
5. **Admin Dashboard** — Centralized management interface for content, users, and operations
6. **CMS** — Content management system for dynamic content creation and editing
7. **AI Assistant** — Dashboard AI chat with MantleKit-aware system context (supports OpenAI, Anthropic, OpenRouter)
8. **Kanban Board** — Task management with drag-and-drop workflow
9. **Calendar** — Operational calendar for content and support planning
10. **Analytics** — Usage and performance analytics within the admin dashboard
11. **Teams** — Multi-user workspace with role management
12. **Support Tickets** — Customer support intake forms connected to admin triage workflows
13. **Comment Moderation** — Blog comment approve/reject dashboard with configurable moderation rules
14. **Form Builder** — Configurable forms for lead capture and user data collection
15. **Media Library** — Asset management for uploaded files and images
16. **Chat Support** — Live chat widget integration with Tawk.to
17. **Help/FAQ** — Self-service knowledge base and FAQ module
18. **Transactional Email** — Automated emails via Resend, Mailgun, or Brevo with React Email templates
19. **SEO Toolkit** — Built-in sitemap generation, OG tags, Twitter cards, structured data, and metadata API
20. **Landing Pages** — Conversion-optimized landing page components and builder

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## Themes

MantleKit ships with 11 production-ready themes, fully customizable via CSS variables and Tailwind (more themes planned):

1. **Minimal** — Clean, whitespace-forward design
2. **Bold** — High-contrast, typographically prominent
3. **Corporate** — Professional, enterprise-appropriate aesthetic
4. **Creative** — Distinctive, visually differentiated style
5. **SaaS** — Optimized for software product marketing pages
6. **Arcade** — Retro gaming-inspired aesthetic
7. **Brutalist** — Raw, intentionally unconventional typography-first design
8. **Cinematic** — Dark, film-inspired visual style
9. **Constructivism** — Bold geometric, avant-garde inspired
10. **K-Pop** — Vibrant, high-energy Korean pop culture aesthetic
11. **Mainframe** — Terminal/monospace retro-tech style

All themes support color, font, and spacing modification. Pro and Agency tiers include all current customer-facing themes plus future theme releases.

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## Integration Setup Guides (Knowledge Base)

- [Getting Started](https://mantlekit.dev/kb/getting-started): CLI installation, environment variable setup, Supabase project initialization, first local development run, and first Vercel deployment. Typical setup time: under 5 minutes.
- [Integrations Guide](https://mantlekit.dev/kb/integrations): Comprehensive setup documentation for all third-party services:
  - **Database**: Supabase PostgreSQL — connection strings, Row-Level Security setup
  - **Auth**: Email/password and OAuth (Google, GitHub) — Supabase Auth configuration
  - **AI**: OpenAI, Anthropic, OpenRouter — API key setup and model selection
  - **Payments**: Stripe (API keys, webhooks), Lemon Squeezy (store setup), Polar (product configuration)
  - **Email**: Resend, Mailgun, Brevo — API keys and sending domain verification
  - **Chat**: Tawk.to — widget embed and dashboard setup
  - **Hosting**: Vercel (primary — environment variables, custom domain, SSL), Railway, Fly.io, DigitalOcean, self-hosted Node.js
- [Account Settings](https://mantlekit.dev/kb/account-settings): User profile management, password changes, and admin role assignment by updating `public.profiles.role` to `'admin'` in Supabase for the account you want to promote
- [Components Reference](https://mantlekit.dev/kb/components): Documentation for MantleKit's Shadcn/UI-based component library — marketing components, product UI building blocks, and layout primitives

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## Blog & Tutorials

- [Blog](https://mantlekit.dev/blog): Technical guides and tutorials for Next.js SaaS development.
- [Getting Started Guide](https://mantlekit.dev/blog/guides/getting-started): Complete walkthrough of MantleKit project initialization, Supabase setup, and first deployment. Covers environment configuration and integration verification.
- [Component Library Guide](https://mantlekit.dev/blog/guides/components): How to browse, use, and customize MantleKit's component library. Covers Shadcn/UI integration and Tailwind customization patterns.
- [Deploying to Vercel](https://mantlekit.dev/blog/tutorials/nextjs/deploying-to-vercel): Step-by-step Vercel deployment — GitHub repository connection, environment variable configuration, Supabase URL setup, custom domain and automatic SSL.

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## FAQ Highlights (/faq)

**Pricing & Billing:**
- One-time purchase, lifetime access, no subscription fees
- 14-day money-back guarantee on all tiers
- Upgrade available later with price difference applied
- Infrastructure costs: $0 at launch using Vercel free tier + Supabase free tier + transaction-based payment fees only
- Total estimated launch cost: ~$65 (MantleKit starting at $49 + domain ~$10–15/year)

**Technical:**
- Requires Node.js 18+
- Supabase required for auth, payments, and ecommerce features
- Automatic sitemap.xml generation, Open Graph tags, Twitter Cards, structured data
- Vercel is the primary recommended deployment target, with Railway, Fly.io, DigitalOcean, and self-hosting also supported
- Self-hosting supported on any Node.js-compatible platform
- Compatible with React developers who know basic Next.js conventions

**Licensing:**
- Personal license (Landing/Starter/Pro): use on your own SaaS products
- Commercial license (Agency): build products for unlimited client projects

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## Competitive Context

MantleKit competes with Next.js SaaS boilerplates including ShipFast and MakerKit. As of April 2026:

| Feature | MantleKit | ShipFast | MakerKit |
|---|---|---|---|
| Built-in modules | 20+ | lighter feature set | mid-sized feature set |
| One-time pricing | Yes | Yes | Yes |
| Starting price | $49 | [varies] | [varies] |
| Commercial license | $249 (Agency) | Varies | Varies |
| Ecommerce | Yes (Pro+) | No | Partial |
| Admin dashboard | Yes (Pro+) | No | Partial |
| AI assistant | Yes (Pro+) | No | No |
| Support tickets | Yes (Pro+) | No | No |

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## Support & Contact

- [Support](https://mantlekit.dev/support): Customer support request form and help resources
- [Contact](https://mantlekit.dev/contact): General inquiries and sales contact form
- Email: support@mantlekit.dev
- Website: https://mantlekit.dev
- Community: Discord (linked from site footer)
- Social: LinkedIn, YouTube, Facebook, Instagram, TikTok (linked from site footer)

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*Last updated: April 2026. Update this file after each product release or pricing change.*