WebSockets vs SSE for Agentic Streaming Interfaces
September 24, 2026
WebSockets provide the bidirectional communication necessary for agentic control, enabling features like mid-stream cancellation and real-time steering that Server-Sent Events cannot support.
HOW THIS AFFECTS YOU
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builderUse WebSockets if your agent requires user intervention or cancellation during active streams.
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designerYou can design more interactive, steerable agent interfaces using bidirectional protocols.