LINE + Gemini integration
Connect LINE to Gemini
ConnectChats brings your LINE chats into Gemini. Ask Gemini 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 Gemini can do with your LINE
ConnectChats gives Gemini a small set of tools. Gemini calls them when you ask about your LINE chats, and only for the chats you share.
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Catch you up
Ask what you missed and Gemini reads your unread LINE 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. Gemini searches your LINE history and quotes the message.
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Draft replies
Gemini 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 LINE account and confirms delivery. Auto-send only runs in chats where you switch it on.
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Things to ask Gemini
Type these in Gemini once LINE is linked.
- Gemini
What did I miss in my LINE chats today?
- Gemini
Summarize the family group on LINE since Friday.
- Gemini
Who asked me a question on LINE that I haven't answered?
- Gemini
Find the address my sister sent me on LINE.
- Gemini
Draft a reply to Alex on LINE saying I can make it Saturday.
How to connect LINE to Gemini
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 Gemini
- In the Gemini web app, open Settings, then Connected Apps, and add ConnectChats with https://api.connectchats.com/mcp as the server URL.
- Gemini opens the ConnectChats sign-in page, where you sign in with your passkey.
- In a prompt, type @ and pick ConnectChats to use your linked chats.
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Link your LINE account
- Open https://connectchats.com/app and choose Link a chat app, then LINE.
- Sign in with the email address and password registered to your LINE account. Set them in LINE under Settings, Account if you have not.
- LINE shows a verification code, which you confirm in LINE on your phone.
- Your chats appear in the dashboard, where you choose which ones your AI app can see.
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Pick the chats Gemini can see
Every chat is listed in your ConnectChats dashboard. Share all of them or only the ones you choose. Gemini never sees the rest.
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Ask Gemini about your LINE
Open a new conversation in Gemini and ask about your chats. Gemini calls ConnectChats when it needs your messages.
How LINE and Gemini work together
ConnectChats signs in to your LINE account the way LINE for PC does, and your AI app sees the chats and groups you share. Your phone stays your main device.
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LINE in ConnectChats
One to one chats and groups are supported. LINE official accounts you follow appear as chats too. Stickers show up as short text descriptions, along with photos, videos and voice messages. Each linked chat starts with its last 200 messages, then every new message arrives as it is sent. LINE allows one PC sign-in at a time, so linking ConnectChats may sign out LINE on your computer.
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ConnectChats in Gemini
The Gemini web app can add custom apps from an MCP server URL on eligible accounts. Add ConnectChats once, sign in with your passkey, and pick it with @ in any prompt where you want Gemini to see your chats. Google limits custom apps in Gemini to people 18 or older in the US, signed in with a personal Google account, in English, with Keep Activity on. Work and school accounts are not supported. Custom apps are connected in the Gemini web app, then also work in the Gemini mobile app. The same ConnectChats account works in every AI app, so the chats you already linked are available in Gemini without linking them again. ConnectChats only sees the chats you choose to share, and it asks for your approval before any reply is sent.
Your LINE stays under your control
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You pick the chats
Gemini only sees the LINE chats you share. Unshare a chat and it disappears from every AI app at once.
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Drafts by default
Gemini prepares replies. You approve each one before it reaches LINE, 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 Gemini read my LINE messages?
Yes, once you link LINE in ConnectChats and add ConnectChats to Gemini. Gemini reads only the chats you share, and only when you ask it something that needs them.
Can Gemini send LINE messages for me?
Gemini can draft a reply and send it after you approve it. Messages go out from your own LINE account. You can allow automatic sending for specific chats, and it stays off everywhere else.
Is the LINE to Gemini 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 Gemini and link LINE 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 LINE once and use it everywhere.
Does it understand Japanese or Thai chats?
Yes. Your AI app reads messages in their original language and can summarize them or draft replies in that language, or translate them for you.
Do I need to register an email in LINE?
Yes, because LINE uses your email and password for sign-ins on other devices. You can add one in LINE under Settings, Account.
Can I use ConnectChats with Gemini today?
Yes, on accounts where Gemini offers custom apps. Add ConnectChats with https://api.connectchats.com/mcp in the Gemini web app under Settings, Connected Apps, then sign in with your passkey.
Will it work with a Google Workspace account?
No. Google does not offer custom apps in Gemini for work or school accounts, so use ConnectChats with a personal Google account.
Related pages
LINE with other AI apps
Other chat apps in Gemini
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