Where A2A Fits in the Open Agent Ecosystem
Where A2A Fits in the Open Agent Ecosystem Co-authored with Angie Jones on the Agentic AI Foundation blog, August 20, 2026
A2A defines how one independent agent works with another: negotiating scope, keeping a task going over time, asking for more input, and streaming intermediate updates, while the remote agent decides how to do the work behind its endpoint. Commerce is a concrete example. UCP defines an A2A binding for checkout, and AP2 carries verifiable payment authorization inside the same interaction.
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