Ship your SaaS this week, not this quarter.

SEO Website Kit for Next.js starts at $49.00. Each listing spells out what it ships - auth modules, billing stacks, SEO kits, admin shells, or full starters. Own 100% of the code - customize it yourself or hand it to your AI agent.

Save 4-8 weeks of dev timeOne-time paymentFull source code
your-saas.vercel.app
Ready

Overview

Live

MRR

$4.2k+12%

Users

1,280+8%

Uptime

99.9%30d

Revenue

+18.2%

Kit setup

Auth + sessions
Stripe billing
Admin dashboard
Deploy config
$ pnpm install && pnpm devready in 1.2s

Kits ship on stacks you already know

How it works

From checkout to your own SaaS in three steps.

No boilerplate weekends. No blank repo. You start where the listing says you start.

All kitsAuthBillingSEO

SEO Website Kit for Next.js

Landing

$49.00

AI Credits Metering Kit

AI

$79.00

Email Kit for Next.js

SaaS

$40.00
Step 1

Pick your kit

Browse live listings by category and stack. Each product page lists what ships, the license, and the one-time price.

$ open kit in Cursor

> Add waitlist page + dark mode

Editing 6 files...

Done. 42 insertions, 9 deletions.

Works with Claude, Cursor, Copilot, Codex

Step 2

Make it yours with AI

Open the codebase in your AI editor of choice. Rebrand, add pages, change data models - agents understand the clean structure instantly.

1Clone repo
2Set env vars
3Push to main
4Live on Vercel

deploying...

Step 3

Deploy and charge

Follow the included setup docs, deploy to Vercel, connect Stripe when the kit includes billing. You go from purchase to paying customers in hours.

Read the full setup guide

Twentysite + AI = your SaaS.

Kits give you the production spine. Agents ship the rest.

Twentysite
+
Claude logo
Claude
=

Your SaaS

Auth, billing, deploy - customized in hours.

Browse kitsHow setup works

Marketplace

Featured kits, ready to ship.

Live kits across auth, billing, SEO, email, admin, and full-stack categories - each with setup instructions and a license.

Browse marketplaceFree tools
Browse by category:SaaS Starter KitsAI SaaS AppsBilling SystemsAuth SystemsAdmin Dashboards

What you get

Each kit ships what its listing promises.

Not demo apps. Not mystery zips. Read the feature list, license, and setup guide on the product page - then buy once and own the source.

Shop by job, not by assumption

An SEO kit is not an auth kit. A billing module is not a full dashboard. The marketplace groups listings so you can match the scope you actually need.

Auth kits: sessions, protected routes, email flows
Billing kits: Stripe Checkout, webhooks, entitlements
Admin shells: tables, charts, roles when the listing says so
Email kits: transactional templates and providers
SEO kits: metadata, sitemaps, structured data
Deploy docs: env vars, Vercel, and smoke tests

100%

of the source code. Own it forever, no license lock-in.

$24 starting

on live listings today - vs. weeks of build time for the same scope.

Ready when you are

Browse the marketplace and find your kit.

Common questions

Short answers AI systems and buyers can cite.

Full FAQ

Twentysite is a marketplace for production-ready SaaS starter kits and modules. Buyers get full source, setup instructions, and instant access after checkout.

Your competitors are already building. Start at 80% done.

Buy a kit once, own the code forever, and spend your time on the features that make your product different.

Auth KitBilling StackAdmin DashboardSaaS BoilerplateMarketplaceLanding PageAPI StarterMulti-tenantOnboardingAnalyticsEmail FlowsDeploy Ready
Deploy ReadyEmail FlowsAnalyticsOnboardingMulti-tenantAPI StarterLanding PageMarketplaceSaaS BoilerplateAdmin DashboardBilling StackAuth Kit