Baseplate: a Next.js SaaS and AI starter kit
Auth, Stripe billing and OpenAI + Anthropic streaming, already wired together as source code. Pay once, then build unlimited personal and commercial products.
Skip the setup that every SaaS needs
Before a SaaS or AI product has a single unique feature, it needs sign-in, billing, a dashboard and a way to call AI models safely. Building those from scratch takes time away from the part customers actually pay for.
Baseplate gives you that foundation as source code: Supabase Auth, Stripe Checkout with the Customer Portal and webhooks, Drizzle ORM migrations, OpenAI and Anthropic route handlers with streaming, per-user rate limiting and credit usage tracking. Pro adds a RAG example and an agent / tool-calling example.
Standard vs Pro
One-time price in USD. Pay once, with lifetime updates.
Standard
$129 one-time
- Next.js 16 + TypeScript
- Supabase Auth (Google + magic link)
- Stripe Checkout + Customer Portal + webhooks
- Drizzle ORM with migrations
- OpenAI + Anthropic route handlers with streaming
- Per-user rate limiting
- Credit usage tracking
- Dashboard and billing UI
- Lifetime updates
- Documentation
Pro
$249 one-time
Everything in Standard, plus:
- RAG (retrieval-augmented) example
- Agent / tool-calling example
- Advanced UI component pack
- Priority repo access
Delivered as source code: after purchase you are invited to a private GitHub repo. The Baseplate License lets you build unlimited personal and commercial products.
How buying Baseplate works
From purchase to shipping under the Baseplate License.
- 1
Buy on Gumroad or Lemon Squeezy
Choose Standard or Pro. It is a one-time payment.
- 2
Get invited to the private GitHub repo
After purchase you are invited to the private repository that holds the source code.
- 3
Build on the code
Use the documentation to set up the stack and start building your own product on top of it.
- 4
Ship under the Baseplate License
Pay once and build unlimited personal and commercial products.
Baseplate walkthrough
See the dashboard, billing, AI streaming and the Pro examples in action.
What the walkthrough covers: the Baseplate dashboard with plan, credits and AI request counts; the billing page and Stripe checkout; an AI streaming demo with OpenAI and Anthropic options; and the Pro examples for RAG (vector search) and agent / tool-calling.
Inside Baseplate
A closer look at the dashboard, billing and AI examples.
Baseplate FAQ
Answers about delivery, licensing and the two tiers.
What do I get when I buy Baseplate?
Baseplate is sold as source code. After purchase on Gumroad or Lemon Squeezy, you are invited to a private GitHub repo that contains the code, the documentation and lifetime updates.
What is the difference between Standard and Pro?
Standard ($129) includes the full SaaS and AI foundation: auth, Stripe billing, streaming AI route handlers, rate limiting, credit tracking, dashboard and billing UI, lifetime updates and documentation. Pro ($249) adds a RAG example, an agent / tool-calling example, an advanced UI component pack and priority repo access.
What does the Baseplate License allow?
You pay once and can build unlimited personal and commercial products with Baseplate.
Which AI providers are supported?
Baseplate includes route handlers for OpenAI and Anthropic, both with streaming.
Is it a subscription?
No. Baseplate is a one-time purchase: Standard is $129 and Pro is $249, and updates are lifetime.
Start from the foundation
Pick Standard or Pro above. Prefer a team to build the product with you? Talk to us about MVP development.
Compare Standard and Pro