How to integrate multiple payment providers and authentication systems into your SaaS product

How to integrate multiple payment providers and authentication systems into your SaaS product

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Sushify

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Sushify is a production-ready Next.js SaaS boilerplate that empowers developers to launch full-featured SaaS applications in days, not months. Built with the latest technologies including React 19, Next.js 15, TypeScript, and Tailwind CSS 4, Sushify eliminates the repetitive groundwork of building authentication, payments, multi-tenancy, and AI integrations from scratch. Whether you're a solo founder, indie hacker, or development team, Sushify provides everything you need—from 5+ payment providers and multi-language support to admin dashboards and email systems—so you can focus on building your unique product instead of reinventing the wheel.

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What to expect from an ideal product

  1. Sushify comes pre-configured with 5+ payment providers including Stripe, PayPal, and others, eliminating weeks of integration work and API documentation reading
  2. Built-in authentication system supports multiple providers like Google, GitHub, and email/password, with session management and security features already implemented
  3. Multi-tenancy architecture handles user isolation and data separation automatically, so you don't need to build complex database schemas from scratch
  4. Production-ready codebase using Next.js 15 and TypeScript means payment webhooks, user management, and security protocols are already tested and working
  5. Admin dashboard and email systems are included out-of-the-box, giving you instant control over user accounts, subscriptions, and payment monitoring without custom development

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