NexusPRO
Pay Once, Own Forever • Production Next.js 16 SaaS Starter

Ship Your SaaS In Hours, Not Months.

The all-in-one foundation for engineering teams: Next.js App Router, clean one-time Stripe checkout, instant session unlocks, and autonomous marketing engines.

Stripe Checkout Verified
TypeScript Strict Mode
No Monthly Subscriptions
Instant /success Unlocks
Interactive Demo Sandbox

Test-Drive the Live Checkout & Instant Provisioning Flow

See exactly how fast your paying customers unlock their dashboard and API keys upon purchase.

nexus-live-simulation-cluster

Ready to test the instant unlock?

Click "Simulate Flow" above to watch Nexus provision a live customer session, verify the Stripe webhook, and generate credentials in 38ms.

Architecture & Integrations

Engineered for Extreme Production Velocity

Every layer has been audited, typed, and structured for seamless deployment.

Full Stripe Checkout Suite

Client & server SDK integration with direct checkout sessions, custom line items, and dynamic success/cancel callbacks.

Explore Stripe docs

Strict TypeScript & Zero Lint Errors

Comprehensive type-safety with zero implicit any, null-safe session handling, and robust production build checks.

View build architecture

Autonomous Marketing Engine

Integrated Google Antigravity SDK python agent for autonomous Reddit/X trend discovery and targeted lead outreach.

View outreach pipeline
5.0 / 5.0 Rated by Verified SaaS Founders

Trusted by Builders Worldwide

Hear from teams shipping real revenue-generating SaaS platforms in days.

5.0

"The Stripe integration worked out of the box. We had our first paying customer within 48 hours of deploying. Saved us 3 weeks of custom auth and webhook engineering."

Alex Kravitz

Alex Kravitz

Founder, FastSaaS

5.0

"Mobile UX is flawless. Tap targets are effortless on mobile phones and the checkout flow never gets stuck. Our mobile conversion increased by 34% immediately."

Elena Lin

Elena Lin

CTO, CloudPulse

5.0

"Zero compiler errors, zero warnings on build, and ready for instant Vercel deployment. Cleanest Next.js codebase we have ever inherited."

Marcus Reed

Marcus Reed

Lead Architect, ScaleIO