Mmcp

mmcp

[](https://www.npmjs.com/package/mmcp) [](https://github.com/koki-develop/mmcp/actions/workflows/release-please.yml) [](./LICENSE)

Manage your MCP (Model Context Protocol) server definitions in one place and apply them to supported agents.

Supported Agents

| Agent | id | Config Path | | --- | --- | --- | | Claude Code | claude-code | ~/.claude.json | | Claude Desktop | claude-desktop | macOS: ~/Library/Application Support/Claude/claude_desktop_config.jsonWindows: %APPDATA%\Claude\claude_desktop_config.jsonLinux: ~/.config/Claude/claude_desktop_config.json | | Codex CLI | codex-cli | ~/.codex/config.toml | | Cursor | cursor | ~/.cursor/mcp.json | | Gemini CLI | gemini-cli | ~/.gemini/settings.json | | GitHub Copilot CLI | github-copilot-cli | ~/.copilot/mcp-config.json |

More agents may be added in the future.

Installation

npm install -g mmcp

Getting Started

1. Add an MCP server to mmcp config

$ mmcp add [--env KEY=VALUE ...] [--config ] [--force] --   [args...]

# e.g.
$ mmcp add -- context7 npx -y @upstash/context7-mcp@latest
$ mmcp add -- everything npx -y @modelcontextprotocol/server-everything@latest

Adds the MCP server definition into ~/.mmcp.json.

You can check configured servers anytime:

$ mmcp list [--config ]
context7: npx -y @upstash/context7-mcp@latest
everything: npx -y @modelcontextprotocol/server-everything@latest

2. Choose target agents

Set which agents to apply to (e.g. claude-code).

$ mmcp agents add [--config ] 

# e.g.
$ mmcp agents add claude-code
$ mmcp agents add claude-desktop
$ mmcp agents add codex-cli
$ mmcp agents add cursor
$ mmcp agents add gemini-cli
$ mmcp agents add github-copilot-cli

List registered agents:

$ mmcp agents list [--config ]
claude-code
claude-desktop
codex-cli
cursor
gemini-cli
github-copilot-cli

3. Apply your mmcp config to the agents

$ mmcp apply [--mode merge|replace]

See [Apply modes](#apply-modes) for what each mode does.

That’s it. Your MCP servers from ~/.mmcp.json will be written into the agent’s config (e.g. ~/.claude.json for Claude Code).

Configuration

mmcp stores configuration as JSON. Default location is ~/.mmcp.json.

Example:

{
  "mode": "merge",
  "agents": [
    "claude-code",
    "claude-desktop",
    "codex-cli",
    "cursor",
    "gemini-cli",
    "github-copilot-cli"
  ],
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp@latest"
      ],
      "env": {}
    },
    "everything": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-everything@latest"
      ],
      "env": {}
    }
  }
}

Apply modes

mode controls how agent configs are updated when you run mmcp apply.

merge (default)

Existing agent entries stay unless mmcp overrides the same name.

Existing agent config

{
  "mcpServers": {
    "other": {
      "command": "custom"
    }
  }
}

mmcp.json

{
  "mode": "merge",
  "agents": [...],
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": ["-y", "@upstash/context7-mcp@latest"]
    }
  }
}

After applying

 {
   "mcpServers": {
     "other": {
       "command": "custom"
     },
+    "context7": {
+      "command": "npx",
+      "args": ["-y", "@upstash/context7-mcp@latest"]
+    }
   }
 }

replace

All agent-side entries are removed and re-created from mmcp.

Existing agent config

{
  "mcpServers": {
    "other": {
      "command": "custom"
    }
  }
}

mmcp.json

{
  "mode": "replace",
  "agents": [...],
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": ["-y", "@upstash/context7-mcp@latest"]
    }
  }
}

After applying

 {
   "mcpServers": {
-    "other": {
-      "command": "custom"
-    }
+    "context7": {
+      "command": "npx",
+      "args": ["-y", "@upstash/context7-mcp@latest"]
+    }
   }
 }

License

[MIT](./LICENSE)

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: koki-develop
• Source: koki-develop/mmcp
• License: MIT
• Homepage: https://www.npmjs.com/package/mmcp

Install and usage instructions live in the source repository linked above.