Stateless is a consultancy helping financial businesses grow faster by using APIs to be better connected with their customers and partners.

We’re experts in the business and technology of financial APIs.

If you want to succeed with APIs, you need to develop a clear overall vision for the business whilst getting all the design and delivery complexities right.

We know how to execute on all of this, and ensure you meet your business goals.

Clients we have worked with

  • Open Banking Limited
  • Starling Bank
  • Temenos
  • Funding Circle

Stateless is led by Mike Kelly

Mike is an entrepreneur, product designer, and software engineer. He’s created API technology used globally by companies like Amazon Web Services, Capital One, GEICO, and Temenos.

Mike has been solving business problems with APIs for over a decade - specialising in open banking, secure payment APIs, and applied cryptography.

Contact us

We can help you succeed.

Send a quick hello to and we’ll arrange a brief intro call.

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