MCP Server Inspector

I got to know from this page that there is a server inspector available to inspect any MCP server's capabilities.

I tested it on a MCP server created running as a Docker container:

npx @modelcontextprotocol/inspector docker run --rm -i -v mcp-test:/mcp mcp/sqlite --db-path mcp/test.db

• mcp/sqlite is the Docker image of the MCP server.
• --db-path mcp/test.db - The Sqlite DB is stored here.

Starting MCP inspector...
Proxy server listening on port 3000

🔍 MCP Inspector is up and running at http://localhost:5173 🚀
New SSE connection
Query parameters: {
  transportType: 'stdio',
  command: 'docker',
  args: 'run --rm -i -v mcp-test:/mcp mcp/sqlite --db-path mcp/test.db',
  env: ...
}
Stdio transport: command=/usr/bin/docker, args=run,--rm,-i,-v,mcp-test:/mcp,mcp/sqlite,--db-path,mcp/test.db
Spawned stdio transport
Connected MCP client to backing server transport
Created web app transport
Created web app transport
Set up MCP proxy
Received message for sessionId fdfac1b6-166b-48bd-860a-4fbd5e400016

This server provides few tools, a resource and a prompt. These can be viewed on the UI.

Resources

Tools

I think the UI is nice! It is helpful in viewing the server's configuration.

Using this server with Claude Desktop

I added the following entry in ~/.config/Claude/claude_desktop_config.json and restarted it.

	"sqlite": {
	    "command": "docker",
	    "args": [
		      "run",
		      "--rm",
		      "-i",
		      "-v",
		      "mcp-test:/mcp",
		      "mcp/sqlite",
		      "--db-path",
		      "/mcp/test.db"
		    ]
	}    

Claude Desktop identified the tools from the server:

I asked this question:

When I asked to show the table contents as a HTML table, this is what I got:

Easter holidays are not correct!

When I asked, Claude corrected the dates (I have not verified) and updated the database by calling update tool and regenerated a new table.