Slack MCP Server
Read channels, search history, and post messages in Slack.
Slack is a Communication MCP (Model Context Protocol) server: Read channels, search history, and post messages in Slack. It is MIT-licensed and self-hosted from its source repository. Listed on MCP Collection since July 2026.
About Slack
Community Slack MCP server with channel, DM, and search coverage. Bring your own Slack credentials.
How to connect Slack to Claude, Cursor or VS Code
Slack is self-hosted. Install it from the source repository, then register its start command in your MCP client's config (Claude Code, Cursor, Windsurf or VS Code).
{
"mcpServers": {
"slack": {
"command": "<start command from the README>",
"args": []
}
}
}The exact command (often npx, uvx or docker) is in the project README at github.com/korotovsky/slack-mcp-server.
Slack FAQ
What is Slack?
Slack is a Model Context Protocol (MCP) server in the Communication category. Read channels, search history, and post messages in Slack. MCP servers expose tools that AI assistants like Claude can call during a conversation.
How do I use Slack with Claude or Cursor?
Slack is self-hosted. Install it from the source repository, then register its start command in your MCP client's config (Claude Code, Cursor, Windsurf or VS Code).
Is Slack free to use?
Slack is published under the MIT license, so the software itself is free to run. Hosted or API-backed servers may have their own usage tiers; check the project homepage.
Where is the source code for Slack?
The source is at github.com/korotovsky/slack-mcp-server.
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