Feature Request: Display custom catalog servers in MCP Toolkit UI

[null-runner]

Description

Currently, the MCP Toolkit UI in Docker Desktop only displays servers from the official docker-mcp catalog. Servers from custom catalogs are invisible in the UI, even when properly enabled and functional.

Current Behavior

• Custom catalog servers work via CLI (docker mcp server enable/list)
• Custom catalog servers work with clients (Claude, Cursor, etc.)
• Custom catalog servers are NOT visible in Docker Desktop MCP Toolkit UI
• The "My Servers" section shows "something went wrong" or is empty

Requested Feature

1. Display servers from ALL registered catalogs in MCP Toolkit UI
2. Allow enabling/disabling custom servers from UI
3. Show server details (tools, config) for custom servers
4. Visually distinguish custom vs official servers (optional badge/icon)

Use Case

Organizations and developers create custom MCP servers for:

• Internal tools and integrations
• Specialized workflows
• Development and testing

These should be manageable through the same UI as official servers, providing a consistent user experience.

Workaround

Currently using CLI only for custom server management, which works but lacks the discoverability and ease of use of the UI.

Related

• This is likely related to docker mcp server inspect fails to find servers from custom catalogs #282 (inspect not searching custom catalogs)
• The UI may be using inspect or similar logic internally

Environment

• Docker Desktop: 4.x with MCP Toolkit
• docker mcp version: v0.28.0

[slimslenderslacks]

@null-runner I'll send you some updates on private catalogs that we're making this week. We're also making changes to the DD UI to support this. Adding @liuziyue.

[liuziyue]

Hi @null-runner , thank you for the feature request! As @slimslenderslacks mentioned above, we're currently working actively to improve the Desktop UI experience. If you by any chance are interested in being an early adopter, let us know, and I'd be happy to connect with you to give you a preview of the feature when it's ready!

[null-runner]

Yes, it would be nice to have early access to preview the new features! thanks! @liuziyue and @slimslenderslacks

[mbuotidem]

@liuziyue also interested in being an early adopter

[liuziyue]

Hi @null-runner @mbuotidem Thank you both for your interests! I'm happy to share that we have custom catalog in MCP toolkit UI available as an experimental feature in Docker Desktop. Here's how you can try out the feature -

1. Update Docker Desktop to 4.55+
2. In docker desktop, enter Konami code "up, up, down, down, left, right, left, right, b, a". Upon success, you should see the "Experimental features" page.
3. Search MCPWorkingSets and turn on the flag.
4. Go back to MCP Toolkit page and you should be able to see the new UI

Let me know of any question on the above instructions, and I'm all ears to hear your feedback!