Deciphering the alphabet soup of agentic AI protocols

Theregister | 30-01-2026 08:03pm |

Tools, agents, UI, and e-commerce - of course each one needs its own set of competing protocols MCP, A2A, ACP, or UTCP? It seems like every other day, orgs add yet another AI protocol to the agentic alphabet soup, making it all the more confusing. Below, we'll share what all these abbreviations actually mean and share why they are important for the future of AI....

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