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Agent-to-Agent (A2A) server | Elastic <strong>doc</strong>s

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Agent-to-Agent (A2A) server

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The Agent-to-Agent (A2A) server enables external A2A clients to communicate with Elastic Agent Builder agents.

Agent cards endpoint

Returns metadata for a specific agent. The agentId is a path parameter that corresponds to your agent IDs:

GET /api/agent_builder/a2a/{agentId}.json

A2A protocol endpoint

Interact with agents following the A2A protocol specification:

POST /api/agent_builder/a2a/{agentId}

Important

Both A2A endpoints require API key authentication. For more information about the A2A protocol, refer to the A2A protocol specification.