Catch up on Slack channels with Claude

What it is

MCP is a connector that lets AI use your apps, such as Drive, Slack or Notion. Slack offers an MCP server, which lets AI tools like Claude search your Slack content and read specific channels or threads. Once Claude is connected, you can ask it to summarise a busy channel instead of scrolling back through it.

Who it is for

This is for anyone who loses track of busy Slack channels while in meetings or focused on other work. Managers, support and sales staff, operations and project owners often follow several channels at once. If you need the key points of a channel or a long thread quickly, this helps.

What you need

• A Slack workspace where your workspace admin has approved the MCP integration. Slack's developer pages list this as a prerequisite.
• Claude Desktop. The steps below are for Claude Desktop.
• Permission to sign in to your Slack workspace when Claude asks you to.
• Note: Slack's developer pages also list Claude Code CLI installed under prerequisites. The Claude Desktop steps do not mention it. Slack's pages do not name a required Slack or Claude plan.

Set it up

1. Ask your workspace admin to confirm the Slack MCP integration is approved. Slack says admins can approve and manage all MCP client integrations.
2. Open Claude Desktop.
3. Open the sidebar to get to the Customize page.
4. On the Customize page, click Connectors.
5. Click + to add a connector.
6. Find Slack and add it.
7. Complete the OAuth flow to connect to your Slack workspace. This is the sign-in and permission screen that asks you to allow the connection.

Slack's pages also describe a route for Claude Code, which uses a plugin and typed commands. Most readers can skip it and use the steps above.

A first thing to try

Start with one channel you know well, so you can check the summary against what you remember. Ask for reading and summarising only.

List the Slack channels I am a member of that have "launch" in the name. Then read the messages from the last day in the most active one. Summarise the key decisions, any questions for me, and any deadlines. Do not post or send anything in Slack.

The last sentence matters. Slack's pages say the connection can also send messages, so it is sensible to say clearly what you want Claude to do.

You can also ask about one thread. Paste the thread's name or topic and ask for a short summary with next steps.

Limits and privacy

• Slack's help pages say the Slack MCP server gives AI agents secure access to your Slack workspace. An agent is AI that completes a task with several steps for you, not just one answer.
• Slack's developer pages say the server can list the channels you are a member of. Archived channels are included by default in that list.
• The server can read the complete message history of channels and complete threads. It can also search messages, files, people and channels.
• It can also send and schedule messages, add reactions, create channels and create canvases on your behalf. This is why a read-only request is a good habit.
• Workspace admins can approve and manage all MCP client integrations. If the Slack connector does not appear or will not connect, check with your admin.
• Rate limits apply. Reading a channel or a thread is listed at Tier 3: 50+ per minute. Message search has special rate limits. If you ask for a lot at once, you may hit a limit.
• Slack's pages do not say how Claude stores or uses the content it reads. Check Claude's own privacy information and your company's AI policy before using it on sensitive channels.

Start with one channel, check the summary, and add more once you trust the results.

Where these steps come from

Steps from Slack's documentation, checked 13 Nov 2026.

• Guide to MCP in Slack
• Connect to Claude | Slack Developer Docs
• Overview | Slack Developer Docs

This guide was written by AI from the pages above. Menus and plans change, so open them if a step looks different.