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Version: 2.0

Send A2A v1 message

POST 

/v2/agents/:agent_key/message:send

Sends a message to the agent using the A2A v1 wire format. Blocks until the agent reaches a terminal or interrupted state. Returns the resulting task, or a direct message reply for stateless interactions.

To continue an existing conversation, set message.contextId to the prior task's id.

Request

Responses

Send-message response — exactly one of task or message.