The best online bank of 2020 is now even better.

Radius is now

Lendingclub logo

The best online bank of 2020 is now even better. Radius has joined America’s largest personal loan company to offer our members access to fair credit, competitive rates, and the financial tools to help you get out of debt and make the most of your money.

Business Banking

API Banking

Unlock the power in your banking transactions and data.

Contact Us

API Banking Sandbox is Now Available

  • Unlock the power of Radius APIs and register now for your personal Sandbox keys
    • Execute ACH transactions
    • Transfer between accounts
    • Check balances and transactions
    • Review full API list and documentation
Register Now

Connecting You and Your Money

Our APIs enable you to manage your banking from within your operating system.

Automated Savings

ACH Transfers


Wire Transfers


What is API Banking?

Our API Checking account unlocks the ability for you to use APIs to send and receive payments and manage your cash from your current operating system. Forget transferring files and double data entry and unlock the power of having your banking transactions tied to your business data.

When you pick Radius for your API Banking needs you get Bankrate’s Best Online Bank 2020.

Benefits of API Banking

API Checking is perfect for Startup and Middle Market companies. The benefits include:

Send Money to People

Automate Transactions

Reduce Errors

Simplify Reconciliation

Increase Efficiency

Treasury Prime

Powered by Treasury Prime

Radius has partnered with Treasury Prime, the industry standard API platform that provides comprehensive and easy integration.

Questions about getting started?

Contact our API Banking team today!

Digital banking, made human.

At Radius, we put our customers at the center of everything we do. That’s why we focus on providing products and services that are not only convenient but help to make life easier.


We use 256-bit encryption to ensure that data is protected with the highest level of security.

FDIC Insurance

Your deposits are FDIC-insured up to the highest possible amount allowed – $250,000.

Customer Support

Have a question? We’re here to help. Chat with us online, or reach us by phone or email.