ServiceNow as an MCP Client: Agents That Reach Beyond the Platform. ServiceNow AI agents aren't boxed in anymore. As an MCP client, they can call external MCP servers to pull real-time data, code samples, docs, and more, all from outside the platform. The MCP client shows up as just another tool inside a ServiceNow AI agent. The agent calls it like any other tool, with zero awareness of the external system working behind the scenes.