v2
OpenAPI 3.0.02026-08-051996591.2 MBA2A Protocol
Send A2A v0.3 streaming message
Sends a message to the agent and streams task lifecycle events as Server-Sent Events. Each SSE data: line is a JSON A2aV03StreamResponse carrying a task, message, statusUpdate, or artifactUpdate. The stream ends when the task reaches a terminal or interrupted state.
post/v2/agents/{agent_key}/v1/message:stream
Path parameters
agent_keystring required
A unique key that identifies an agent.
Example:customer_support
The unique key of the agent.
Headers
Request-Timeoutinteger
The platform makes a best effort to complete the request in the specified seconds, or it times out.
Request-Timeout-Millisinteger
The platform makes a best effort to complete the request in the specified milliseconds, or it times out.
Request body
Response
A stream of A2aV03StreamResponse events.