MCP Servers

groupsio-mcp-server

Enables consuming and managing Groups.io mailing lists programmatically via the Groups.io REST API. Provides tools to list subscriptions, fetch group details, search archives, manage members, and access files, events, and databases.

README

groupsio-mcp-server

MCP server for consuming and managing Groups.io data via the Groups.io REST API.

Prerequisites

Node.js 18+
A Groups.io API key (get one at https://groups.io/settings/apikeys)

Installation

git clone https://github.com/ke4qqq/groupsio-mcp-server.git
cd groupsio-mcp-server
npm install

Configuration

Add the server to your MCP client configuration. The exact file varies by client:

Client	Config file
Claude Desktop	`~/Library/Application Support/Claude/claude_desktop_config.json` (macOS)
Kiro	`~/.kiro/settings/mcp.json`
VS Code (Copilot)	`.vscode/mcp.json` in your workspace

Add this entry to the mcpServers object in your config:

{
  "mcpServers": {
    "groupsio": {
      "command": "node",
      "args": ["/path/to/groupsio-mcp-server/index.js"],
      "env": {
        "GROUPSIO_API_KEY": "your_key_here"
      }
    }
  }
}

Dependencies

Package	Version	License	Purpose
@modelcontextprotocol/sdk	^1.29.0	MIT	MCP server framework and stdio transport
zod	^4.3.6	MIT	Input schema validation

Tools

Tool	Description
`list_subscriptions`	List all groups you're subscribed to
`get_group`	Get group settings by ID or name
`get_subgroups`	Get subgroups of a parent group
`get_subgroups_by_category`	Get subgroups organized by category
`get_topics`	Get message threads in a group
`get_topic`	Get messages within a specific topic
`get_message`	Get a single message by number
`get_messages`	Get messages in a group
`search_archives`	Search message archives
`get_members`	Get members of a group
`get_member_directory`	Get public member directory
`search_members`	Search members by email or name
`get_hashtags`	Get hashtags in a group
`get_message_history`	Get monthly message count history
`get_permissions`	Get your permissions in a group
`get_events`	Get upcoming events
`get_files`	Get files in a group
`get_wiki_pages`	Get wiki pages in a group
`get_databases`	Get databases in a group
`update_subscription`	Update your subscription settings (email delivery, message selection, etc.)
`delete_subscription`	Unsubscribe from a group

License

This project is released under the MIT-0 license.

Attribution

Written with the aid of Kiro.

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