Slack MCP Server
Search, read and post in your Slack workspace, plus canvases, lists and files.
Officialby SlackHosted, nothing to installChecked October 18, 2026
Slack's own hosted MCP server lets Claude search messages, files, channels and people, read threads, and send or schedule messages with your user permissions. It also creates and updates canvases and lists, and workspace admins approve and manage which AI clients may connect.
Who it is for
- Teams that run their daily work in Slack
- Managers who need quick catch-ups on busy channels
- Support and ops teams digging through past threads
Prompts to try
Once it is connected, ask in plain words. Claude decides when to use the server and asks before it changes anything important.
Summarize what happened in #product-launch this week and list any open questions.Find the thread where we decided on the new pricing and tell me who approved it.Create a canvas in #marketing with the action items from today's discussion.How to connect it
In Claude Code
claude mcp add --transport http --scope local slack https://mcp.slack.com/mcp
In the Claude desktop app
Customize > Connectors > Discover: search Slack, then select Connect to Claude
Hosted address: https://mcp.slack.com/mcp
Good to know
Run /mcp to sign in. If sign-in fails, Slack's official plugin (/plugin install slack@claude-plugins-official) preconfigures Slack's OAuth client.
Unlock the setup steps
Free. Leave your email once to open the setup steps for all 150 servers, and get the best new connectors each month.
How we checked it
Checked Slack's developer docs (server overview plus the Claude and Claude Code setup pages), the Slack listing in Claude's connectors directory and the OAuth discovery metadata; the hosted endpoint answers with an OAuth challenge.