Let AI summarise your team’s Slack channels, find old messages, and know which way a LINE Official Account can connect to AI.
What you need
Slack: a paid ChatGPT or Claude plan, and sometimes approval from your Slack admin
LINE: a LINE Official Account with the Messaging API turned on (for way 2, which you set up on a computer)
1Easiest: the connector already in your AI app
Claude and ChatGPT connect to Slack built-in, but both need a paid plan, and their help pages focus on searching and summarising, not sending messages · LINE: we could not confirm a built-in LINE connector in Claude or ChatGPT · Google’s list of apps that connect to Gemini has neither Slack nor LINE
ClaudeAnthropic’s pages disagree: the guide says Team and Enterprise, while an announcement on 26 Jan 2026 says Pro and Max too · The Claude app must be installed in Slack first, which needs a paid Slack plan and Slack admin approval
Have your Slack admin approve and install the Claude app in Slack first
In Claude, go to “Customize > Connectors”, choose Slack, click “Connect” and sign in to Slack
In a chat, click “+”, choose “Connectors”, turn on Slack and ask about your team’s channels
On Team and Enterprise, an organisation owner must first enable the connector in “Organization settings > Connectors”
ChatGPTPlus, Pro, Business, Enterprise and Edu · You need a paid ChatGPT plan, but not a paid Slack plan
Open ChatGPT, go to “Settings > Plugins” and find Slack
Select “Connect” and authorise the Slack workspace you want
Ask in the chat, for example to summarise your team’s channel this week
ChatGPT searches and summarises the Slack messages you can access; where an admin allows it, it can also join channels, set reminders or upload files · Add more workspaces in “Settings > Plugins”, Slack, “Connect another account”
LINE publishes its own official MCP (a preview) that lets AI send messages from a LINE Official Account to one customer, or broadcast to everyone who follows the account. It needs a LINE OA with the Messaging API on and Node.js v22 or later on a computer, and it isn’t in the registry we check yet · Messages reach real customers immediately, so test with a test account first · If Slack or LINE lists an MCP in the registry, it shows up here.
There is no MCP made by the service itself in the registry we check yet (data as of Nov 11, 2026). Use way 1 for now.
3Last resort: an MCP from someone else
These are made by other makers; your team’s or customers’ messages pass through them, and some ask for a bot token that can send messages in your name. Always read the “Basic checks” first.
“Summarise today’s sales team channel and tell me what’s still pending”
“Find the message where my manager talked about this month’s ad budget”
“Draft a promotion message for customers, but don’t send it”
Stuck? Try this
Slack isn’t in the list
Both Claude and ChatGPT need a paid plan · In Claude, your Slack admin must install the Claude app first
Connecting Slack asks for approval
Your workspace requires app approval; send the request to your Slack admin
AI says it can’t send messages
The built-in connectors focus on search and summaries. Have AI draft the message and send it yourself
I want AI to send LINE messages to customers
There’s no easy way yet: LINE’s official MCP is a preview you install on a computer. If that’s not for you, draft with AI and send it yourself in LINE OA
Keep your data safe
Messages from outsiders in a channel or from customers can hide instructions for the AI (prompt injection). Read every request before you let AI act.
A broadcast reaches every follower of your LINE OA at once. Test with a test account first, and make AI ask before sending.
A LINE bot token can send messages in your shop’s name. Keep it secret, never paste it into a chat, and revoke it at once if it leaks.