Best Financial Data APIs Software for Linux of 2025

Finicity's open platform for banking makes it easy to connect your customers' financial information to your app or service. Finicity's open platform banking platform is being used worldwide by some of the most innovative and large organizations to provide better financial experiences for their customers. Your experience is dependent on data quality. Our data has been battle tested in the most demanding markets. You can easily code to endpoints and test data, and connect to Finicity’s open banking platform to access the best API coverage for banks, credit unions and payroll providers. Access to the data you need to power products is easy with our suite of APIs.

One vendor, one centralized platform: For tailored solutions, you can skip the hassle of negotiating with multiple vendors. United Fintech is the platform that unites all of these elements. Accelerated onboarding and end to end digitization No more rigid legacy systems or long onboarding periods. We bring together smarter products while reducing regulatory hurdles and onboarding times.

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.