Question 1

What is MantleKit?

Accepted Answer

MantleKit is a premium NextJS boilerplate and starter kit designed for indie hackers, freelancers, and agencies. It comes with production ready themes, authentication, payments, ecommerce, and more — everything you need to launch a SaaS or web application quickly.

Question 2

How do I get started?

Accepted Answer

After purchasing, run npx create mantlekit key YOUR KEY to set up your project. The CLI will guide you through choosing your theme, payment provider, and features. You'll have a running app in under 5 minutes.

Question 3

What tech stack does MantleKit use?

Accepted Answer

MantleKit is built on Next.js (App Router), TypeScript, Tailwind CSS, Shadcn/UI, and Supabase. Payments are handled via Stripe, Lemon Squeezy, or Polar. Email is sent via Resend, Mailgun, or Brevo.

Question 4

Can I use MantleKit for client projects?

Accepted Answer

Yes, with the Agency tier. The Agency licence allows unlimited commercial use for client projects. The Starter and Pro tiers are for personal use only.

Question 5

Are there any ongoing costs to use MantleKit?

Accepted Answer

MantleKit is a one time purchase with no recurring fees. Many of the services it integrates with offer generous free tiers, so you can launch and run your app at zero ongoing cost: Hosting: Vercel offers a free Hobby plan — perfect for launching your site Database: Supabase has a free tier with 500MB storage and 50,000 monthly active users Payments: Stripe, Lemon Squeezy, and Polar charge per transaction only — no monthly fees Email: Resend offers 3,000 emails/month free. Mailgun offers 1,000/month free. Brevo offers 300/day ( 9,000/month) free Chat: Tawk.to is 100% free with no paid tiers Domain: The only cost you may have is a domain name ( $10 15/year) Most MantleKit users launch and operate for months without spending a cent beyond their domain.

Question 6

Do I own the code?

Accepted Answer

Yes. MantleKit is not a hosted service or a dependency — you get the full source code. Once you download it, the code is yours. No vendor lock in, no runtime dependency on MantleKit.

Question 7

How many themes are included?

Accepted Answer

Currently 13 production ready themes. New themes are added over time and included free for Pro and Agency customers.

Question 8

Is MantleKit suitable for beginners?

Accepted Answer

Yes. If you know basic React and can follow a setup guide, you can launch with MantleKit. The CLI handles most of the configuration, and the documentation covers every integration step by step.

Question 9

What payment methods do you accept?

Accepted Answer

We accept all major credit and debit cards via Stripe. Payment is a one time purchase — there are no recurring fees or subscriptions.

Question 10

Can I upgrade my tier later?

Accepted Answer

Yes! Contact support with your licence key and we'll apply the price difference to an upgrade. Downgrades are not available.

Question 11

Do you offer refunds?

Accepted Answer

We offer a 14 day money back guarantee. If MantleKit doesn't meet your needs, contact us within 14 days of purchase for a full refund. No questions asked.

Question 12

Is there a free trial?

Accepted Answer

We don't offer a free trial, but you can view live demos of all five themes on our website before purchasing. Combined with our 14 day refund policy, you can try MantleKit risk free.

Question 13

Will I need to pay for hosting?

Accepted Answer

Not necessarily. Vercel's free Hobby plan is more than enough to host a MantleKit site. You only need a paid plan if you require team features, advanced analytics, or high traffic volumes. Most indie projects run comfortably on the free tier.

Question 14

Will I need to pay for a database?

Accepted Answer

No. Supabase's free tier includes 500MB of storage, unlimited API requests, and 50,000 monthly active users. That's more than enough for most SaaS applications. If you purchased the Landing tier, you don't need a database at all.

Question 15

Are the payment providers free to use?

Accepted Answer

Yes — Stripe, Lemon Squeezy, and Polar all charge per transaction only. There are no monthly fees or setup costs. You only pay when you make money.

Question 16

Is the chat widget free?

Accepted Answer

Yes. MantleKit supports Tawk.to which is 100% free — no paid tiers, no per seat charges, no limits.

Question 17

Is email sending free?

Accepted Answer

For most users, yes. Brevo offers 300 emails/day free ( 9,000/month), Resend gives you 3,000 per month free, and Mailgun gives you 1,000 per month free. For a typical SaaS, that covers welcome emails, password resets, and transactional emails for months before you'd need to upgrade.

Question 18

What's the total cost to launch?

Accepted Answer

With MantleKit + free tiers of Vercel, Supabase, Stripe, Resend, and Tawk.to, your only cost is MantleKit itself (starting at $49) and a domain name ( $10 15/year). You can go from purchase to live site for under $65.

Question 19

How do I deploy my MantleKit project?

Accepted Answer

MantleKit is optimized for Vercel deployment. Push your repo to GitHub and connect it to Vercel — it will auto detect the Next.js configuration. You can also deploy to any platform that supports Node.js. Vercel's free Hobby plan is enough for most projects.

Question 20

Can I customize the themes?

Accepted Answer

Absolutely. Themes are built with CSS variables and Tailwind. You can modify colors, fonts, spacing, and border radii by editing the theme's CSS file. All Shadcn/UI components automatically adapt to your changes.

Question 21

How do I add a new page?

Accepted Answer

Create a new file in the app/ directory following Next.js App Router conventions. Your page will automatically inherit the active theme's styling through CSS variables.

Question 22

Do I need Supabase?

Accepted Answer

Supabase is required for authentication, payments, and ecommerce features. If you purchased the Landing tier, you can run without Supabase — the database: false flag stubs auth and disables DB dependent features. Supabase's free tier is generous enough for most projects.

Question 23

Why Next.js? What are the SEO benefits?

Accepted Answer

Next.js is one of the best frameworks for SEO, and MantleKit takes full advantage of it: Server Side Rendering (SSR) — pages are rendered on the server, meaning search engines see fully formed HTML content, not empty JavaScript shells Static Site Generation (SSG) — blog posts, FAQ pages, and landing pages are pre built at build time for instant load speeds Automatic Code Splitting — only the JavaScript needed for each page is loaded, improving Core Web Vitals scores Built in Image Optimization — Next.js automatically resizes, compresses, and lazy loads images in modern formats (WebP/AVIF) Metadata API — MantleKit uses Next.js generateMetadata for dynamic title tags, meta descriptions, and Open Graph data per page JSON LD Structured Data — blog posts include schema.org markup, helping Google display rich results Automatic Sitemap — MantleKit generates sitemap.xml dynamically, keeping search engines informed of all your pages RSS Feed — blog posts are available via RSS, increasing content distribution Fast TTFB — server rendered pages and edge deployment on Vercel mean sub 100ms time to first byte globally These aren't features you have to configure — they're built into MantleKit out of the box.

Question 24

Does MantleKit generate a sitemap?

Accepted Answer

Yes. MantleKit automatically generates a sitemap.xml that includes all public pages, blog posts, and knowledge base articles. It updates every time you build. No plugins or manual maintenance required.

Question 25

Does MantleKit support Open Graph and social sharing?

Accepted Answer

Yes. Every page generates proper Open Graph tags, Twitter cards, and meta descriptions. Blog posts include post specific OG images. When shared on social media, your links will display with proper titles, descriptions, and images.

Question 26

How fast is a MantleKit site?

Accepted Answer

Very fast. Static pages load in under 200ms. Blog posts are pre rendered at build time. Images are automatically optimized. Deployed on Vercel's edge network, your site is served from the closest data center to each visitor. This directly impacts SEO — Google uses Core Web Vitals as a ranking signal.

Question 27

Can I use a custom domain?

Accepted Answer

Yes. After deploying to Vercel, go to your project settings and add your domain. Vercel handles SSL certificates automatically. DNS propagation typically takes a few minutes.

Question 28

Can I self-host instead of using Vercel?

Accepted Answer

Yes. MantleKit is a standard Next.js application. You can deploy it to any platform that supports Node.js, including AWS, Railway, Fly.io, DigitalOcean, or your own server. Vercel is recommended because it's free and optimized for Next.js.

Question 29

What Node.js version do I need?

Accepted Answer

Node.js 18 or later. We recommend using the latest LTS version.

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