Payments Move Up the Stack
The future of interchange
The real shift is that basic card rails are no longer the hard part, distribution and specialized compliance are. A software company can now add card acceptance or card issuing with off the shelf APIs, sponsor bank relationships, and dashboard tooling, which means plain vanilla payments features increasingly look the same across vendors. The remaining edge comes from owning the customer workflow, or solving narrow regulated use cases like EBT, HSA, FSA, fleet, or tuition flows that generic processors still do not handle cleanly.
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From 2010 through the late 2010s, sponsor banks and middleware made it much simpler to launch fintech products. That lowered the cost and time needed to stand up a neobank or card program, which led to a wave of similar products and then consolidation when many lacked real differentiation.
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The new infrastructure stack is concrete. Stripe lets businesses launch commercial card programs through Issuing APIs and dashboard tools. Lithic offers self serve sandbox access, virtual cards, spend controls, and webhook based program management. Marqeta positions itself as an open API issuing layer with bank and network integrations baked in.
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Restricted spend is different because the problem is not just moving money. The merchant has to verify what can be bought, route the payment through approved rails, and stay compliant with program rules. Benny focuses on this gap for SNAP and EBT online acceptance, where a normal processor setup still does not solve the full workflow.
This points to a market where generic acceptance and issuing keep fading into infrastructure, while the most valuable fintech products move up the stack into software, compliance logic, and category specific workflows. The winners will look less like standalone payment companies and more like vertical products that happen to control money movement inside the job the customer is already doing.