The kirana test

A kirana is a one-family corner store — the unit of Indian retail. UPI won India the afternoon a kirana owner could accept digital payments with nothing but a printed QR code taped to the counter. No terminal, no integration, no sales rep, no monthly fee. Adoption cost: one laminated sheet.

So here is the test I apply to every agentic commerce protocol: could a kirana adopt it in an afternoon? Not a platform with an engineering team. Not a merchant of record with a compliance department. A shop that closes for lunch.

Run today’s contenders through it honestly and most fail — they assume OAuth flows, hosted endpoints, signed catalog feeds, developer accounts. Fine for the head of the distribution; invisible to the long tail where most of the world’s commerce actually happens.

The protocol that wins the agentic era will be the one that finds its laminated-QR moment: the degenerate, undignified, afternoon-sized on-ramp. Everything else is a pilot program wearing a whitepaper.