Slack + Claude integration
Connect Slack to Claude
ConnectChats brings your Slack chats into Claude. Ask Claude to catch you up, find any message and draft replies. Nothing gets sent until you approve it.
Free to start. No app to install. Every send needs your OK.
What Claude can do with your Slack
ConnectChats gives Claude a small set of tools. Claude calls them when you ask about your Slack chats, and only for the chats you share.
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Catch you up
Ask what you missed and Claude reads your unread Slack chats, then gives you the short version: who needs an answer, what was decided, what can wait.
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Find any message
The address someone sent last month, the price a client agreed to, the link from a group chat. Claude searches your Slack history and quotes the message.
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Draft replies
Claude writes the reply in your tone, in the chat's language, with the context of the whole thread. You read it, edit it, and send it.
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Send with your OK
When you approve a draft, ConnectChats sends it from your own Slack account and confirms delivery. Auto-send only runs in chats where you switch it on.
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Things to ask Claude
Type these in Claude once Slack is linked.
- Claude
Summarize the Slack channels I missed this morning.
- Claude
What did the team decide about the launch date on Slack?
- Claude
List every Slack message that is waiting on me.
- Claude
Find the Slack thread where we discussed the pricing change.
- Claude
Draft a reply in Slack confirming I'll send the report by Thursday.
How to connect Slack to Claude
It takes about two minutes. You do it once, and the same account then works in every AI app you add.
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Add ConnectChats to Claude
- In Claude on the web or desktop, go to Customize, then Connectors.
- Click + Add, then Add custom connector. Name it ConnectChats, paste https://api.connectchats.com/mcp as the URL and click Continue.
- Keep the detected sign-in settings, click Add, then connect. Sign in with your passkey and allow access.
- In a chat, click + at the lower left, choose Connectors and make sure ConnectChats is on.
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Link your Slack account
- Open https://connectchats.com/app and choose Link a chat app, then Slack.
- Sign in to your Slack workspace with your own Slack account.
- ConnectChats lists your channels and direct messages, and you choose which ones to share with your AI app.
- To add another workspace, repeat the sign-in for it.
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Pick the chats Claude can see
Every chat is listed in your ConnectChats dashboard. Share all of them or only the ones you choose. Claude never sees the rest.
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Ask Claude about your Slack
Open a new conversation in Claude and ask about your chats. Claude calls ConnectChats when it needs your messages.
How Slack and Claude work together
ConnectChats links to Slack when you sign in to your workspace from the ConnectChats dashboard. Your AI app sees the channels and direct messages your own account can see. ConnectChats does not install a bot in your workspace or read channels you are not in.
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Slack in ConnectChats
Direct messages, group messages and the channels you belong to are supported, including thread replies. Each linked chat starts with its last 200 messages, then every new message arrives as it is sent. On Slack's free plan, Slack only shows the last 90 days of messages, so older ones cannot be imported either. Messages your AI app sends go out from your own Slack account, after you approve them. The free plan links 2 chat apps and keeps messages for 30 days.
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ConnectChats in Claude
Claude supports remote MCP servers as custom connectors. Add ConnectChats once, sign in with your passkey, and switch it on in any conversation where you want Claude to see your chats. Custom connectors work on every Claude plan, including Free, which allows one custom connector. On Team and Enterprise plans, members cannot add connectors themselves. An owner adds ConnectChats in Organization settings, then each member connects their own account. Add the connector on the web or desktop. It then works in the Claude iPhone and Android apps too. Claude connects from Anthropic's cloud, not from your computer, so nothing needs to stay running on your side.
Your Slack stays under your control
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You pick the chats
Claude only sees the Slack chats you share. Unshare a chat and it disappears from every AI app at once.
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Drafts by default
Claude prepares replies. You approve each one before it reaches Slack, unless you turn on auto-send for that chat.
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Stored messages are encrypted
Stored messages are encrypted with a key that only your passkey can unlock. We never train models on your messages.
Questions
Can Claude read my Slack messages?
Yes, once you link Slack in ConnectChats and add ConnectChats to Claude. Claude reads only the chats you share, and only when you ask it something that needs them.
Can Claude send Slack messages for me?
Claude can draft a reply and send it after you approve it. Messages go out from your own Slack account. You can allow automatic sending for specific chats, and it stays off everywhere else.
Is the Slack to Claude integration free?
Yes. The free plan links two chat apps and works in every supported AI app, with no limit on what you ask. No card needed.
Do I need to install anything?
No. You add ConnectChats inside Claude and link Slack from your browser. There is no app to download and nothing runs on your computer.
Does it work with other AI apps too?
Yes. The same ConnectChats account works in ChatGPT, Claude, Grok, Manus, Muse and any AI app that supports remote MCP servers. Link Slack once and use it everywhere.
Does my Slack admin need to approve ConnectChats?
ConnectChats signs in as you rather than installing an app in the workspace, so there is nothing for an admin to add. Some companies forbid third party clients in their policies, so check yours before you link a work account.
Does it see private channels?
Only the ones you are a member of, because it sees what your own account sees. You still choose which channels are shared with your AI app.
Does it work on the free Claude plan?
Yes. Claude's free plan allows one custom connector, which is enough for ConnectChats.
Can I use ConnectChats in the Claude mobile app?
Yes. Add the connector on claude.ai or in the desktop app, and it is available in the iPhone and Android apps on the same account.
Is this the same as using ConnectChats in Claude Code?
It is the same ConnectChats account, but Claude Code is set up separately with one terminal command. Your linked chats and sharing choices carry over.
Related pages
Slack with other AI apps
Other chat apps in Claude
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