Best Unified APIs for Windows of 2025

Plaid is an international data network that powers tools used by millions of people to live a more healthy financial life. Our ambition is to facilitate an inclusive, competitive and mutually beneficial financial systems by simplifying payments and revolutionizing lending. Plaid works with more than 8,000 companies, including fintechs such as Venmo and SoFi and several Fortune 500 companies, to give people more control and choice over how they manage money. Plaid is headquartered in San Francisco and its network spans more than 12,000 institutions throughout the US, Canada UK and Europe.

Boss Insights provides global leading access to business customers’ financial data with a single connection to accounting, banking, commerce, payroll, tax and more (i.e. Quickbooks, Stripe, SalesForce, etc.). It’s used by fintechs and neobanks to gain 60% increased automation, 100% automated scoring, 51% faster funding and 5x faster renewals.

Streamlined SaaS App Integrations Made Effortless. Kloudless is an advanced API integration platform that consolidates endpoints and data structures from various SaaS APIs, allowing you to write code just once and seamlessly connect your application with multiple SaaS providers. We have navigated the complexities of over 150 APIs on your behalf. Our expertise in communicating with and managing these numerous APIs means you can focus on your core product. Collaborate with us to ensure your application can connect with any SaaS solution your customers desire. Our Unified APIs simplify the integration process by harmonizing endpoints and data models from various SaaS APIs, enabling you to code once and integrate many. By abstracting the differences among numerous SaaS APIs, our Unified APIs facilitate rapid integration development, helping you bring new features to market faster. Additionally, we provide valuable features such as real-time activity monitoring and pre-built tools like the File Picker and Crawler, which are not always available from the SaaS providers themselves, further enhancing your integration capabilities. With Kloudless, you can maximize efficiency and deliver exceptional value to your users.

Exegy’s Software Market Data System (SMDS) provides a streamlined API that delivers timely and actionable market data events essential for trading applications while also minimizing the overall ownership costs. This innovative feed handling solution ensures ultra-low latency and offers normalized access to more than 300 trading venues, catering to all major asset classes across the globe. As market data rates continue to rise and industry dynamics evolve, Exegy’s SMDS is designed to meet these challenges effectively. The SMDS is presented through a single, high-performance API that is both flexible and integrated. By normalizing all content according to Exegy’s Market Data Model, it significantly reduces the time needed for clients to incorporate additional markets and navigate the complexities of specific venues. Additionally, the system supports comprehensive book building for both price and order books, enabling users to create composite order books that provide an extensive overview of liquidity across multiple venues. This holistic approach empowers traders with the insights necessary to make informed decisions in a fast-paced market environment.