Who's behind the boom in fintech startups? How are digital-wallet entrepreneurs, for instance, launching their ideas? How much of their products are they building in house?  The front end of fintech garners a lot of attention, but the back end has often gotten ignored. Nevertheless, there's an infrastructure powering everything. What is it? Who is it? How will it change? On today's episode of the Payments Innovation podcast, we invited Chris McCann, managing partner at Proof of Capital, to take us down the fintech rabbit hole by exploring these ideas from his popular article, The FinTech Infrastructure 101. Chris helps us understand the fintech ecosystem, specifically who does what and the value of the chain. What we talked about: How the idea for The FinTech Infrastructure 101, Chris' article, got started The landscape of banking as a service and the "really, really, really new idea" of APIs What fintech companies are using to power their existing applications Trends that are fundamentally challenging the core assumptions of fintech How fintech ecosystems could develop differently around the world To ensure that you never miss an episode of Payments Innovation, subscribe on Apple Podcasts, or Spotify, or here.