slack-user-mcp
MCP server for Slack API integration with Claude. slack-user-mcp is a Model Context Protocol (MCP) server maintained by lars-hagen. It connects to MCP-compatible clients such as Claude Desktop, Cursor, Cline, and other agents that speak the protocol. It exposes 8 tools, including slack_list_channels, slack_post_message, slack_reply_to_thread, slack_add_reaction, slack_get_channel_history, slack_get_thread_replies, slack_get_users and slack_get_user_profile, that an agent can call directly. It is categorized under AI/Claude, Integration/Claude and Tool/Slack.
What is this MCP
This is a Model Context Protocol (MCP) server that enables Claude AI to interact with Slack workspaces as a user, providing tools for messaging, channel management, and user interactions.
How to use this MCP
Install via npm, Docker, or Smithery, then configure with Slack OAuth token and workspace ID in your Claude Desktop configuration to enable Slack functionality.
What this MCP can be used for
Enables Claude to perform Slack actions like posting messages, managing channels, reading conversations, and interacting with users within a Slack workspace.
AIMCP authority
DR and traffic signal for the AIMCP public domain.
Frequently asked questions
What is the slack-user-mcp MCP server?
slack-user-mcp is a Model Context Protocol server from lars-hagen. It lets MCP-compatible AI clients call its tools over a standard interface, so agents like Claude, Cursor, and Cline can use it without custom integration.
How do I connect slack-user-mcp to my AI client?
Add slack-user-mcp to your client's MCP configuration using the stdio or SSE connection shown in the usage examples on this page, then restart the client to load the server.
What tools does slack-user-mcp provide?
slack-user-mcp provides 8 tools: slack_list_channels, slack_post_message, slack_reply_to_thread, slack_add_reaction, slack_get_channel_history, slack_get_thread_replies, slack_get_users and slack_get_user_profile.
Is slack-user-mcp free to use?
slack-user-mcp is listed on AIMCP for free. Any API keys or accounts required by the underlying service are set by its provider.
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