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Part 4: The 2026 agent protocol stack: MCP, A2A, gateways and identity

This story is from 2026-10-24. It is preserved in the archive; the latest stories are on the live feed.

Part 4 · One Agent, Five Platforms In Part 3 I drew the reference architecture: five layers from channel to system of record. This part zooms into the protocols that hold it together. Every platform in this series is converging on the same stack, so it's worth learning it once, before the builds st…

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  1. 2026-10-24 02:02 · DEV Community — AI
    Part 4: The 2026 agent protocol stack: MCP, A2A, gateways and identity

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