Slack + ChatGPT integration
Connect Slack to ChatGPT
ConnectChats brings your Slack chats into ChatGPT. Ask ChatGPT 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 ChatGPT can do with your Slack
ConnectChats gives ChatGPT a small set of tools. ChatGPT 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 ChatGPT 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. ChatGPT searches your Slack history and quotes the message.
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Draft replies
ChatGPT 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 ChatGPT
Type these in ChatGPT once Slack is linked.
- ChatGPT
Summarize the Slack channels I missed this morning.
- ChatGPT
What did the team decide about the launch date on Slack?
- ChatGPT
List every Slack message that is waiting on me.
- ChatGPT
Find the Slack thread where we discussed the pricing change.
- ChatGPT
Draft a reply in Slack confirming I'll send the report by Thursday.
How to connect Slack to ChatGPT
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 ChatGPT
- In ChatGPT on the web, open chatgpt.com/plugins, select the plus button and choose Add custom MCP server.
- Name it ConnectChats, paste https://api.connectchats.com/mcp as the server URL and choose OAuth for authentication.
- Read the warning, select I understand and want to continue, then Create as a plugin.
- ChatGPT opens the ConnectChats sign-in page. Sign in with your passkey and allow access.
- Start a new chat, select ConnectChats and ask about your messages.
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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 ChatGPT can see
Every chat is listed in your ConnectChats dashboard. Share all of them or only the ones you choose. ChatGPT never sees the rest.
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Ask ChatGPT about your Slack
Open a new conversation in ChatGPT and ask about your chats. ChatGPT calls ConnectChats when it needs your messages.
How Slack and ChatGPT 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 ChatGPT
ChatGPT connects to remote MCP servers that you add as a custom plugin. You add ConnectChats once with its server address and sign in with your passkey. ChatGPT can then read, search and summarize the chats you share, and draft replies for you to approve. Custom MCP servers are added on the web. The ChatGPT help center says which plans can add one, and the list has changed several times, so check yours there. On some plans OpenAI lets custom servers read but not take actions. Reading and searching work there; drafting and sending need a plan that allows write actions. In Business and Enterprise workspaces, an admin or owner usually has to create and publish the plugin before members can use it. ChatGPT asks you to confirm before a tool takes an action, on top of ConnectChats' own draft approval.
Your Slack stays under your control
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You pick the chats
ChatGPT 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
ChatGPT 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 ChatGPT read my Slack messages?
Yes, once you link Slack in ConnectChats and add ConnectChats to ChatGPT. ChatGPT reads only the chats you share, and only when you ask it something that needs them.
Can ChatGPT send Slack messages for me?
ChatGPT 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 ChatGPT 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 ChatGPT 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.
Can I add ConnectChats from the ChatGPT mobile app?
Not directly. Custom MCP servers are added in ChatGPT on the web. Do it once from a computer, then use ConnectChats from your ChatGPT account.
Why does ChatGPT ask me to confirm before it drafts a reply?
ChatGPT treats any tool that changes something as an action and asks first. ConnectChats then keeps the reply as a draft until you approve it, unless auto-send is on for that chat.
Will ConnectChats be in the ChatGPT app directory?
That is the plan. Once the listing is live, adding ConnectChats will take one click from the directory instead of a custom server.
Related pages
Slack with other AI apps
Other chat apps in ChatGPT
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