NMI Payments
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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FusionAuth
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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Open SaaS
Open SaaS is a comprehensive open-source starter kit for building full-stack SaaS applications, utilizing the Wasp framework, which combines React, Node.js, and Prisma. This kit is equipped with essential SaaS functionalities such as user authentication through email, Google, and GitHub, as well as payment and subscription management via Stripe or Lemon Squeezy. It also supports file uploads to AWS S3, provides analytics dashboards using either Plausible or Google Analytics, and includes a sample AI-enabled application that utilizes the OpenAI API, facilitating quick prototyping. The template prioritizes end-to-end type safety, job scheduling, and background tasks, along with a one-command deployment process (e.g., wasp deploy) for various hosting solutions like Fly.io, Railway, or custom providers. The code is structured vertically by feature, encompassing authentication, payments, client-side user interfaces, server logic, and end-to-end testing, while also providing valuable resources on SEO, testing with Playwright, deployment, and customization. This project is licensed under the MIT License, allowing free use and distribution, and aims to reduce boilerplate code, enabling developers to concentrate on crafting their product's core functionalities while efficiently managing their development processes.
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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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