SaaSyBase
SaaSyBase
The AI-ready SaaS foundation

Three auth stacks.
Four payment rails.
One codebase ready to ship today.

SaaSyBase is more than a boilerplate — it is an AI-friendly SaaS foundation with structured docs (CLAUDE.md, AGENTS.md, PATTERNS.md) that let any LLM understand the full codebase. Clerk, Better Auth, or NextAuth behind one interface, Stripe or Paystack or Paddle or Razorpay behind one payment layer, 500+ automated tests across 140+ test files plus manual regression coverage, optional Infisical or Doppler bootstrap, security defaults, and a usage meter you can rename to anything. Prompt your way to production.

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Next.js 16 Boilerplate
Built for professionals & AI-assisted founders.
LLM-ready docs (CLAUDE.md, AGENTS.md, PATTERNS.md) let your AI agent understand the entire codebase — so you can prompt your way to a finished product.
Auth Layer
Swap providers
GitHub + Google
AUTH_PROVIDER="betterauth"# Self-hosted NextAuth and Better Auth or Clerk.
Billing Layer
Edge cases covered
PAYMENT_PROVIDER="stripe"# Switch between Stripe, Paddle, Paystack, or Razorpay.
What ships on day one

Launch with billing, users, and ops already working.

Skip months of stitching tools together. SaaSyBase gives you the admin surface, payment visibility, and operational control a real SaaS product needs from the start.

Subscription resurrection covered for webhook retriesCentralized webhook ingress for providersDark mode & customizable theme controlsTeams, invites, organization token poolsSecure logger with secret redactionEdge cases rigorously tested before launchProvider-agnostic auth and billing adapters500+ automated tests with regression coverageRate limits & sanitized errorsDual-column compatibility for safe migrationsProration, retries, refunds, and lifecycle statesAdmin actions and support workflows already wired
180+
built-in API routes
4
payment providers
500+
regression tests
3
auth providers
What's included

Everything. Wired up. Ready to go.

Don't waste weeks piecing together auth, payments, and billing. It's all here and it all works together.

Multi-Provider Payments
Stripe, Paystack, Razorpay, and Paddle are already wired behind one payment interface.
Auth & User Management
Clerk, Better Auth, and NextAuth sit behind one app boundary, with sessions, OAuth, and provider-specific magic links already handled.
Teams & Organizations
Built-in multi-tenant support with seats, invites, and role-based access already in place.
Coupons & Promotions
Create one-time, forever, or repeating discount codes with provider mapping already done.
Admin Dashboard
Analytics, user management, revenue overview, and subscription controls are already connected.
Transactional Emails
HTML email templates with variable interpolation, lifecycle triggers, and send logging — editable from the admin panel.
Subscriptions & Billing
Recurring plans, proration, upgrades, downgrades, and end-of-cycle reconciliation.
Custom token-based Access
Three-bucket system (paid, free, and shared org pool) with configurable names — call them tokens, credits, API calls, or points.
Blog Engine
Rich-text blog with TipTap editor, categories, SEO metadata, and full CRUD admin — no external CMS needed.
Static Pages
Marketing and legal pages are configurable without introducing a separate CMS.
Support System
Users can raise issues directly from the dashboard with a built-in ticket surface.
Moderator Tools
Role-based moderation, account controls, and audit-aware admin operations are included.
Dark Mode & Theming
Zero-flash dark mode, live theme designer, custom CSS injection, and brand color controls — all from the admin panel.
PDF Invoices & Receipts
Auto-generated PDF invoices and refund receipts with your branding, delivered by email or downloadable from the dashboard.
Traffic & Growth Analytics
Built-in visit tracking, page-level analytics, referrer breakdown, and admin traffic dashboards — no third-party scripts needed.
Rate Limiting & Security
DB-backed rate limiting, CSP and HSTS headers, encrypted fields, webhook secret rotation, and auto-redacted logging.
Local & Sentry Error Tracking
Optional Sentry setup for production monitoring, with client, edge, and server capture helpers already wired.
External Secret Providers
Keep production secrets with Doppler or Infisical, with deployment examples and rotation guidance.
Deployment Readiness
Health checks, cron jobs, and production guardrails are ready for Vercel, Coolify, or VPS deployments.
Search Engine Optimization
Control over how your site appears on search engines, with meta tags, and sitemaps.
Audit Logs
Track admin actions, system events, and critical changes with a searchable activity trail.
System Controls
Manage runtime toggles, maintenance switches, and operational settings from one place.
Scheduled Automation
Built-in endpoints handling automated subscription expiry, renewal logic, and scheduled limits cleanup.
Maintenance Mode
Toggle system-wide maintenance screens instantly to halt traffic while operating on the database.
Engineering standards

Production-ready from day one.

Built with strict checks, end-to-end type safety, and comprehensive test coverage so you can deeply trust your foundation.

Type Safety
End-to-end TypeScript.
Every API route, webhook, database query, and UI component is strictly typed. Catch regressions at compile time instead of runtime.
TypeScript
Prisma ORM
Zod
# Strict mode enabled globally
"compilerOptions": {
"strict": true,
"noImplicitAny": true
}
Quality Assurance
Linting & Regression Tests.
500+ automated Vitest tests across 140+ files covering billing math, auth guards, and multi-tenant logic, backed by strict ESLint rules.
Vitest
ESLint
# CI checks before deploy
$ npm run typecheck
$ npm run lint
$ npm run test
✓ 500+ tests passed

Solid primitives and robust test suites out of the box.

Zero to production

Deploy in three steps.

A clean handoff from install to launch, with the docs and operational scaffolding already in place.

Step 01 · Foundation
Environment switches, providers, Prisma setup, and route wiring are already documented.
Operational milestone
Clone & configure
Clone the repo, fill in your .env, pick your auth and payment providers, then run the migrations.
Step 02 · Product pass
The boilerplate stays out of your way, so you can focus on the product layer instead of rebuilding platform basics.
Operational milestone
Prompt in your product
Use the starter as the shell, then scaffold your own app surface into it with prompts, copied modules, or direct component swaps.
Step 03 · Launch
Payments, auth, admin flows, and launch-critical defaults are ready before you ship.
Operational milestone
Brand, deploy & collect
Polish the theme, connect your provider, deploy to Vercel, and start charging without rebuilding the infrastructure layer.
Ownership & Usage

Built for builders. Fair for everyone.

SaaSyBase has a simple licensing model: it's free for any project you build for yourself, and there's a commercial license for agency or client work. No royalties, no usage fees, just a one-time fee.

The Founder

You're building your own dream. No royalties, no recurring fees—just your code, your product.

  • Personal Projects
  • SaaS Startups
  • Internal Business Tools
Free / product

The Professional

You're building for others. High-velocity delivery for clients with a license for every ship.

  • Agency Client Work
  • Freelance Projects
  • Third-party Services
Get Commercial License
Complete transparency. Read the full legal text →
Ready to launch?

Your SaaS deserves a
solid foundation.

Stop rebuilding the same auth & billing infrastructure.
Start with SaasyBase and ship what actually matters.

Get for free →DemoDocsAPISponsor