MCP Server

An MCP server known to Nautobot. When you register one, you record that the server exists, how to reach it, and what it advertises. This does not make anything callable. This app is a registry. The apps that read it decide what to do with what they find.

An MCP server keeps no URL and no credential of its own. Both live on the External Integration that the server points at. The TLS settings and the timeout come from there too.

Fields that an operator owns

Field	Type	Description
name	string	The name of this server in Nautobot. Unique. Not the name that the server reports for itself.
description	string	What the server is for, in the words of an operator.
external_integration	foreign key	The endpoint URL, its headers and TLS settings, and its secrets group. Required.
transport	choice	streamable-http, sse (deprecated), or stdio. Discovery reads a streamable-http server only. It skips the other two and says so, because a stdio server is a subprocess of its client and this app does not speak SSE. Register their tools by hand.
enabled	boolean	Whether the server is in service. Discovery skips a disabled server. An app that reads this registry must also skip one.
tenant	foreign key	The tenant that owns this server, if the deployment is divided that way. Optional.
tags	tags	Standard Nautobot tags.

Fields that the discovery job owns

The MCP Server Discovery job writes each field below. Each one is read-only over the REST API.

CAUTION: The server reports all of this data about itself and nothing verifies it. Do not make a decision from it.

Field	Type	Description
protocol_version	string	The MCP protocol revision that the last discovery negotiated.
server_name	string	The name that the server reports for itself.
server_version	string	The version that the server reports for itself.
instructions	text	The guidance of the server on how to use it.
capabilities	JSON	The capabilities object that the server advertised, kept whole.
last_discovered_at	datetime	When this app last read the tool list correctly. A failed run does not change it, so a stale server is easy to see.