FusionAuth is the authentication and authorization platform engineered for developers who demand flexibility and control. Built from the ground up to integrate with any stack, every feature — from user registration to MFA and SSO — is exposed via a modern, well-documented API.
Support for every major identity protocol is included out of the box: OIDC, SAML, OAuth2, JWT, passwordless login, social sign-on, and more. Whether you’re building a greenfield app or retrofitting auth into a legacy system, FusionAuth adapts to your use case — not the other way around.
Need compliance? FusionAuth helps you meet GDPR, HIPAA, and COPPA standards quickly and reliably.
Deploy it your way: install on Linux, Windows, macOS, Docker, or Kubernetes — or go with FusionAuth Cloud, our managed SaaS hosting. No black boxes. No vendor lock-in. Just powerful, customizable auth that works the way you do.
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NMI Payments gives developers, SaaS builders, ISVs and ISOs a simple path to embedded payments. As a full-stack processor, acquirer, and technology partner, NMI enables you to integrate, brand, and manage payment acceptance within your platform—without becoming a PayFac or building complex infrastructure.
The platform combines flexibility, scalability, and speed, offering white-labeled payments infrastructure that keeps your brand front and center. With omnichannel support for in-store, online, in-app, and unattended payments, you can deliver a consistent merchant experience across every touchpoint. NMI also manages onboarding, compliance, and risk, freeing your team to focus on innovation and customer growth.
Developer-First Experience
NMI’s developer-first environment puts full control in your hands. Build, test, and launch payments in a modern sandbox with clear documentation and ready-to-use code snippets. Guided onboarding flows and API recipes simplify integration, while low-code and no-code tools accelerate deployment. Business users can evaluate monetization options with instant revenue calculators and self-service sign-up.
Whether you’re embedding payments for the first time or scaling across channels, NMI helps you go live faster, stay compliant, and grow with confidence
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FastPocket
FastPocket is an all-in-one SaaS boilerplate crafted to accelerate the creation of online businesses by supplying a ready-made codebase, an extensive library of components, thorough documentation, and templates for deployment, along with guides that address development, design, and marketing strategies. It incorporates vital features such as payment processing via Stripe, user authentication systems, and pre-designed email templates, all built on the Next.js framework. Additionally, the platform presents customizable UI components like buttons, modals, and popovers, along with essential sections such as pricing, FAQs, and blogs, which allows for the quick construction of web pages. FastPocket also accommodates a range of backend solutions by providing deployment templates that work seamlessly with platforms like Digital Ocean, Fly.io, and Pockethost, thus offering developers flexibility in their hosting choices. By integrating TailwindCSS and DaisyUI, it ensures that styling can be applied quickly and effectively to reflect particular brand identities, making it a versatile choice for entrepreneurs. This comprehensive toolkit ultimately streamlines the process of launching and managing online ventures.
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Advantch
Advantch's Starter Kit serves as an all-encompassing solution tailored to accelerate the creation and launch of SaaS, AI, or internal products. Constructed using Django and React, it presents a robust codebase that encompasses essential features like user authentication, multi-tenancy, payment processing through Stripe, and advanced AI functionalities such as OpenAI assistants along with integrated Retrieval-Augmented Generation (RAG) and chat capabilities. The platform includes a unified control panel for overseeing user management, authentication processes, billing, and reporting, while offering the flexibility to tailor the experience for diverse user groups, including teams, businesses, or individuals. Developers enjoy an enhanced setup and customization journey, backed by Command-Line Interface (CLI) tools, comprehensive documentation, instructional guides, and illustrative examples that facilitate a smoother development experience. With an emphasis on adaptability, the Starter Kit empowers users to personalize their applications to suit various needs, ensuring a seamless integration into any workflow.
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