crossplane-mcp-server - WIP

@cychiang

About crossplane-mcp-server - WIP

mcp server for Crossplane

#crossplane #mcp #kubernetes

Basic information

Category

Other

Runtime

python

Transports

stdio

Publisher

cychiang

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "crossplane-mcp-server": {
      "command": "uv",
      "args": [
        "--directory",
        "${PATH_TO_CROSSPLANE_MCP_SERVER}/crossplane-mcp-server",
        "run",
        "src/server.py"
      ]
    }
  }
}

Tools

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Overview

What is crossplane-mcp-server?

crossplane-mcp-server is a Python server that implements the Model Context Protocol (MCP) for Crossplane. It allows an LLM to talk to Kubernetes and query Crossplane-related resources such as CompositeResourceDefinition (XRD), Composition, and ManagedResource (MR).

How to use crossplane-mcp-server?

Configure it as an MCP server in VS Code by adding the provided JSON block to mcp.json, or in Claude Desktop by adding it to claude_desktop_config.json. In both cases the server is started with uv running src/server.py.

Key features of crossplane-mcp-server

List Compositions
Get a specific Composition
List CompositeResourceDefinitions
Get a specific CompositeResourceDefinition
Uses stdio transport via uv and Python
Works with VS Code and Claude Desktop

Use cases of crossplane-mcp-server

Query Crossplane CompositeResourceDefinitions from an LLM during development
Retrieve details of a Composition to assist with configuration
List ManagedResources directly in a chat interface
Automate Crossplane resource inspection with AI assistants

FAQ from crossplane-mcp-server

What does crossplane-mcp-server do?

It allows an LLM to talk to Kubernetes and query Crossplane-related resources such as XRD, Composition, and ManagedResource.

How do I configure crossplane-mcp-server in VS Code?

Add the provided JSON block to mcp.json under your workspace folder, adjusting the path to the server directory.

How do I configure crossplane-mcp-server in Claude Desktop?

Add the provided JSON block to claude_desktop_config.json, adjusting the path to the server directory.

What transport does it use?

It uses the stdio transport (type: "stdio" in the configuration).

What dependencies are required?

It requires uv and Python to run the server script src/server.py.

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