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Seven protocols, one status code: the agentic-commerce stack in October 2026

This story is from 2026-10-01. It is preserved in the archive; the latest stories are on the live feed.

Two years ago, HTTP 402 was a status code nobody implemented. This September and October it became the centre of a land grab: Visa, Mastercard, Google, OpenAI, Stripe, Coinbase and Cloudflare have all shipped or standardised an agent-payment protocol, several of them in the last ten days. If you bu…

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  1. 2026-10-01 14:17 · DEV Community — AI
    Seven protocols, one status code: the agentic-commerce stack in October 2026

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