JUST RELEASED: The 2022 Corporate Bank API Power Rankings. Visit our Fintelligence page to view the report.

Bank API Catalog

Bank APIs are not created equal. FinLync’s bank API experts have seen “under the hood” of each bank API in this catalog and have assessed the quality of each, assigning a star rating based on data depth, documentation, security, and development & testing. This catalog is updated quarterly.


FinLync is the authority in bank APIs for treasury & finance and can connect to any bank’s APIs. Schedule a consultation to make the shift to bank API connectivity.

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  • Bank

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  • FinLync App

94 Matches

About the FinLync Bank API Catalog

  • The FinLync Bank API catalog is a library of all the bank APIs for corporate treasury and finance. Each API included in the list of bank APIs has been aggregated into multi-bank connectivity and can be connected to in a matter of weeks using FinLync’s uniquely advanced technology. The catalog provides a comprehensive and continually-expanding directory of corporate banking APIs worldwide, which treasurers, software developers and product managers and software engineers at financial institutions can compare at the touch of a button.

    The catalog also includes proprietary bank API rankings for each type of API, which reflects the quality of the APIs, as determined by FinLync’s experts.

  • For far too long, the corporate treasury and finance community has listened to rumors about B2B bank API connectivity, always accompanied by the idea that “the banks just aren’t there yet.”

    But in reality, financial institutions across the globe have launched high-quality bank APIs and corporations are actively using those connections today. Bank from multi-nationals like Citibank, HSBC and Bank of America, to boutique and regional banks like PNC, Raffeisen Bank and OCBC are actively creating B2B bank APIs in order to remain competitive. The list of B2B bank APIs is ever-growing, especially with the emergence of open banking API regulations.

  • The best bank APIs for corporates can be found by searching the FinLync Bank API catalog and the FinLync Bank API Power Rankings report, published annually. The quality scores in the catalog are updated on a quarterly basis and are based on ratings given by our experts on bank APIs.

    To display the top-ranked B2B bank APIs, start by navigating to the top menu of the catalog, and locate the “Sort By” field. Click on it and select “Rating highest to lowest.” This will display all the bank APIs in the catalog, regardless of API type, by star rankings. The top-ranked commercial bank APIs will appear at the top of the page, and quality scores will decline as you scroll down the page.

    If you’d like to filter the catalog to see only a particular type of business bank API, simply navigate to the filter bar on the left side of the page and locate the filter section labeled “Type of API.” You can select the type of commercial bank API there that you’re looking for, for example, corporate bank transactions APIs, B2B payment initiation APIs, commercial balances bank APIs, corporate payment status bank APIs and more.

  • The catalog is open to the public, but the primary users are intended to be corporate treasury professionals searching for a list of available bank APIs, bank product managers looking to see how their bank APIs stack up against other banks, and software developers looking to build on top of the FinLync bank API aggregator to move corporate bank data as part of their software.

  • The release of the public bank API catalog demonstrates FinLync’s commitment to helping forward-thinking treasury leaders advance to real-time bank data.

    FinLync sees this as an important resource that needs to be made available to the entire industry. Banks must be willing to offer leading-edge APIs so that corporate treasury teams have the information they need to make more-informed decisions with richer and more-precise data.

    As corporate finance advances beyond host-to-host and SWIFT connectivity, corporate treasurers must have an expert source to judge the quality of bank APIs so they can evaluate and determine which bank is the best fit for their needs.

    On the same token, product owners at banks that are developing bank APIs can benefit from the FinLync bank API directory because it serves as a list of bank APIs where they can survey the competitive landscape. This listing and quality scores will inform their commercial bank API strategy – for example, what bank APIs types are already crowded? Are balances, transactions, payment initiation and payment status all just tablestakes?

    The FinLync Bank API Catalog also serves as a valuable resource for developers looking to use corporate bank data in their software development. Software engineers can build on top of the FinLync platform, much like consumer finance apps build on top of Plaid, MX and other consumer bank API aggregators.

  • The Bank API Catalog is updated quarterly. FinLync also publishes the Bank API Power Rankings Report on an annual basis.

  • The bank API ratings are determined by FinLync bank API experts. All ratings are evaluated on a quarterly basis, and are judged on:

    Value/Types of bank APIs: does the financial institution offer comprehensive bank APIs for all corporate banking needs, including balances, transactions, payment initiation, payment status, and more.

    Data Standards: do the business bank API specifications include rich data and are they properly structured?

    Security: are there suitable security mechanisms?

    Performance: are the API response times acceptable for business use cases?

    Ease of Onboarding: does the financial institution make it easy to integrate? Is there suitable and reliable testing environments/sandboxes with realistic test data?

  • Changes to the FinLync Bank API Catalog can be submitted via this form and will be reviewed on a quarterly basis. If you are a financial institution and would like to discuss the rating of your commercial bank APIs, please submit a request through the same form. Should you encounter any issues, please contact info@finlync.com.