Next.js SaaS starter with Vercel
Take your Next.js SaaS to Vercel with production-tuned sessions, webhook endpoints, and env configs. The starter is set up for your runtime, not just local dev.
The problem
Shipping Next.js to Vercel fails quietly when env vars, session cookies, and webhook URLs are tuned for localhost instead of your edge runtime.
Building it yourself
Scaffold Next.js, find a Vercel tutorial, wire env vars, fix auth sessions, then repeat for billing and email. Most teams lose weeks before the stack deploys cleanly or handles real users.
What you get out of the box
- Vercel adapter and env patterns included
- Serverless-friendly auth sessions
- Preview deploys without custom glue
How teams ship with this kit
- 1
Clone and configure
Add your Vercel keys and provider settings to the included env template. The Next.js app boots with the integration active.
- 2
Customize product flows
Adjust pages, pricing, and onboarding on top of pre-wired routes. Auth, webhooks, and integration helpers stay intact.
- 3
Deploy with included configs
Use the bundled Vercel, Cloudflare Workers, or Node deployment setup. Sessions and webhooks are tuned for production, not just localhost.
- 4
Swap providers later
Client wants a different payment processor or database? Change adapters through config instead of rewriting your Next.js app.
Also ships with every Next.js kit
- Edge-ready auth
- Webhook endpoints
- Environment examples
- Node or Workers output
Common questions
Is this only about Vercel?
No. The Next.js kit is a complete SaaS foundation. Vercel ships alongside auth, billing, email, analytics, storage, and deployment so you are not assembling the stack from scattered tutorials.
Can I see it working before I buy?
Yes. The live demo runs the same Next.js starter with real auth and billing flows. Open the demo, click through signup and checkout, then compare with your timeline.
What if I need Astro or SvelteKit instead?
LaunchFast ships the same integration surface in all three frameworks. Related links on this page point to the Vercel guides for Astro and SvelteKit too.