[Feature Request] Enable quick-toggle for MCP servers

[kylesnowschwartz]

As a user of Claude Code who is often experimenting with my usage of the tool, I would like a way to quickly 'toggle' MCP servers on and off, so that I don't have to go through the claude mcp add and claude mcp remove everytime I want to make an adjustment to what's available to my user settings.

[anuramat]

perhaps with a per-tool toggles as well? I often only need a tool or two from an server, filtering out the rest would be nice

[Benjoyo]

It would be good to be able to assign mcp servers to subagents only and not need to pollute the main mode with all these tools that may only be required for special agents.

[joobisb]

I can see enabledMcpjsonServers and disabledMcpjsonServers config in ~/.claude.json. Perhaps use that for now?

[gur111]

I can see enabledMcpjsonServers and disabledMcpjsonServers config in ~/.claude.json. Perhaps use that for now?

I think that is only per project setting. I don't see it in the global section.

[adradr]

any update on this?

[mattshep]

I just discovered that certain MCP servers consume large amounts of context in sessions where I don't plan to use them, it would be great if those could be left in a disabled state and then enabled "on-demand" when I actually need them.

[ibru]

Also discovered MCP tools eat 30% of my context window. I use e.g. MCPs for bitbucket, Jira etc which I can have 90% of time disabled and enable onlyl when I specifically need.
Would be awesome to not take the hassle of editing .json file or doing other workaround stuff but had option e.g. inside /mcp command to enable/disable the MCP.