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This is not available yet. This page describes what is coming, so you can plan for it. Until then, use what the page suggests below.

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What it will do

Other agents will be able to call yours over A2A, and discover it from a public Agent Card describing what it does.

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What to use today

Have the calling agent use the invoke API as a tool, with an API key scoped to your agent.
Last modified on September 28, 2026