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Built for the Claude Code community with Claude Code by @mertduzgun

Independent project, not affiliated with Anthropic

Groupsio

ke4qqq/groupsio-mcp-server
1authSTDIOregistry active
Summary

This server connects Claude to the Groups.io REST API, letting you query and manage mailing list data directly from your conversation. You get read access to subscriptions, messages, topics, archives, members, files, wiki pages, and events, plus write operations to update subscription settings or unsubscribe from groups. Useful when you're working with community data from Groups.io and want to search archives, pull member lists, or adjust your email preferences without leaving your workflow. Requires a Groups.io API key and runs via stdio transport with Node.js.

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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:

ClientConfig 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

PackageVersionLicensePurpose
@modelcontextprotocol/sdk^1.29.0MITMCP server framework and stdio transport
zod^4.3.6MITInput schema validation

Tools

ToolDescription
list_subscriptionsList all groups you're subscribed to
get_groupGet group settings by ID or name
get_subgroupsGet subgroups of a parent group
get_subgroups_by_categoryGet subgroups organized by category
get_topicsGet message threads in a group
get_topicGet messages within a specific topic
get_messageGet a single message by number
get_messagesGet messages in a group
search_archivesSearch message archives
get_membersGet members of a group
get_member_directoryGet public member directory
search_membersSearch members by email or name
get_hashtagsGet hashtags in a group
get_message_historyGet monthly message count history
get_permissionsGet your permissions in a group
get_eventsGet upcoming events
get_filesGet files in a group
get_wiki_pagesGet wiki pages in a group
get_databasesGet databases in a group
update_subscriptionUpdate your subscription settings (email delivery, message selection, etc.)
delete_subscriptionUnsubscribe from a group

License

This project is released under the MIT-0 license.

Attribution

Written with the aid of Kiro.

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Configuration

GROUPSIO_API_KEY*secret

Groups.io API key from https://groups.io/settings/apikeys

Categories
Data & Analytics
Registryactive
Package@ke4qqq/groupsio-mcp-server
TransportSTDIO
AuthRequired
UpdatedApr 11, 2026
View on GitHub

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