What is the Gateway in OpenClaw's architecture?

The Gateway is the central component of OpenClaw's architecture, acting as a self-hosted control plane that manages communication, session continuity, access control, and agent execution.

• Routes requests, described internally as node.invoke frames, from the Agent Runtime to the appropriate local execution process
• Brokers every AI agent run happening on that instance
• Connects to multiple communication channels, including WhatsApp, Telegram, Slack, Discord, Signal, iMessage, and WebChat

By default, the Gateway's web interface listens on port 18789, which is why exposing that port to the wider internet without authentication is a commonly flagged security risk.

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