List of the Top 4 Unified APIs for Windows in 2025

Plaid operates as a global data network that supports various tools that help countless individuals achieve better financial well-being. Our goal is to create a financial ecosystem that is inclusive, competitive, and advantageous for all by streamlining payment processes and transforming the lending landscape. Collaborating with over 8,000 businesses, including popular fintech platforms like Venmo and SoFi, as well as numerous Fortune 500 firms, Plaid empowers users to have greater autonomy and flexibility in managing their finances. Based in San Francisco, the company's network encompasses more than 12,000 institutions across the United States, Canada, the United Kingdom, and Europe, ensuring a wide reach and impact in the financial sector. Additionally, Plaid is dedicated to fostering innovation that enhances user experiences in financial transactions.

Boss Insights offers an unparalleled gateway to the financial data of business clients through a single interface that integrates various services, including accounting, banking, commerce, payroll, and taxation (such as Quickbooks, Stripe, and SalesForce). This innovative solution is utilized by fintech companies and neobanks to achieve remarkable improvements, including a 60% boost in automation, fully automated scoring, a 51% acceleration in funding processes, and a fivefold increase in the speed of renewals. The efficiency gained through this integration not only streamlines operations but also enhances decision-making capabilities for financial institutions.

Effortless Integrations for Your SaaS Applications. Kloudless is a sophisticated API integration platform that merges various SaaS APIs' endpoints and data structures, enabling you to write code a single time while effortlessly linking your application to multiple SaaS providers. Having tackled the intricacies of over 150 APIs for you, we allow you to concentrate on your main product instead. Partner with us to ensure that your application can effortlessly connect to any SaaS solution that your customers may need. Our Unified APIs streamline the integration process by aligning endpoints and data models from diverse SaaS APIs, allowing you to write once and integrate many. By simplifying the disparities among countless SaaS APIs, our Unified APIs accelerate integration development, enabling you to launch new features more swiftly. We also offer invaluable tools such as real-time activity monitoring and pre-built features like the File Picker and Crawler, which often aren't provided by the SaaS providers themselves, further enhancing your integration capabilities. With Kloudless, you can elevate productivity and provide outstanding value to your users, ensuring a competitive edge in the ever-evolving tech landscape.

Exegy’s Software Market Data System (SMDS) features a streamlined API that delivers timely and actionable market data events crucial for trading applications, while also reducing overall ownership costs. This cutting-edge feed handling solution guarantees ultra-low latency and provides normalized access to over 300 trading venues, addressing all primary asset classes on a global scale. As the demand for market data escalates and the financial landscape shifts, Exegy’s SMDS is equipped to tackle these evolving challenges efficiently. The system is offered through a single, high-performance API that is both adaptable and integrated. By standardizing all content according to Exegy’s Market Data Model, it significantly decreases the time clients need to integrate additional markets and manage the intricacies of various venues. Moreover, the system facilitates robust book building for both price and order books, allowing users to construct composite order books that deliver a comprehensive view of liquidity across different venues. This comprehensive methodology not only streamlines data access but also enhances traders' ability to make well-informed decisions in a competitive market environment. Ultimately, Exegy’s SMDS stands out as a vital tool for modern trading strategies.