Signal + Cursor integration
Connect Signal to Cursor
ConnectChats brings your Signal chats into Cursor. Ask Cursor 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 Cursor can do with your Signal
ConnectChats gives Cursor a small set of tools. Cursor calls them when you ask about your Signal chats, and only for the chats you share.
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Catch you up
Ask what you missed and Cursor reads your unread Signal 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. Cursor searches your Signal history and quotes the message.
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Draft replies
Cursor 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 Signal account and confirms delivery. Auto-send only runs in chats where you switch it on.
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Things to ask Cursor
Type these in Cursor once Signal is linked.
- Cursor
What did I miss in my Signal chats today?
- Cursor
Summarize the family group on Signal since Friday.
- Cursor
Who asked me a question on Signal that I haven't answered?
- Cursor
Find the address my sister sent me on Signal.
- Cursor
Draft a reply to Alex on Signal saying I can make it Saturday.
How to connect Signal to Cursor
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 Cursor
- Open ~/.cursor/mcp.json to use ConnectChats in every project, or .cursor/mcp.json for one project.
- Add this entry and save: { "mcpServers": { "connectchats": { "url": "https://api.connectchats.com/mcp" } } }
- Open Customize in the sidebar, find connectchats and sign in when Cursor asks. Use your passkey on the ConnectChats page.
- In the agent chat, ask about your messages.
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Link your Signal account
- Open https://connectchats.com/app and choose Link a chat app, then Signal.
- On your phone, open Signal, go to Settings, then Linked devices, and tap Link a new device.
- Scan the QR code shown in ConnectChats.
- Your chats then appear in the dashboard, where you choose which ones your AI app can see.
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Pick the chats Cursor can see
Every chat is listed in your ConnectChats dashboard. Share all of them or only the ones you choose. Cursor never sees the rest.
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Ask Cursor about your Signal
Open a new conversation in Cursor and ask about your chats. Cursor calls ConnectChats when it needs your messages.
How Signal and Cursor work together
ConnectChats links to your Signal account as a linked device, the same way Signal Desktop does, and brings in the chats you choose. Your phone stays your main device, and you can unlink ConnectChats from it at any time.
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Signal in ConnectChats
One to one chats and groups are supported. Signal gives a newly linked device little or no past history, so most chats start from the moment you link. Messages are decrypted on our server so your AI app can read them, then stored encrypted with a key only your passkey can unlock. Photos, videos and voice notes show up as short text descriptions, with their captions.
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ConnectChats in Cursor
Cursor reads MCP servers from an mcp.json file and supports OAuth sign-in for remote servers. Add ConnectChats once and its agent can look up messages while you work, such as the bug report a teammate sent you on WhatsApp. Cursor signs in with OAuth and renews the token on its own, so you sign in once. You can switch ConnectChats off in Customize without removing it from mcp.json. Cloud Agents keep their own sign-in, separate from the desktop app. Team admins can limit which MCP servers members can use with an allowlist.
Your Signal stays under your control
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You pick the chats
Cursor only sees the Signal chats you share. Unshare a chat and it disappears from every AI app at once.
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Drafts by default
Cursor prepares replies. You approve each one before it reaches Signal, 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 Cursor read my Signal messages?
Yes, once you link Signal in ConnectChats and add ConnectChats to Cursor. Cursor reads only the chats you share, and only when you ask it something that needs them.
Can Cursor send Signal messages for me?
Cursor can draft a reply and send it after you approve it. Messages go out from your own Signal account. You can allow automatic sending for specific chats, and it stays off everywhere else.
Is the Signal to Cursor 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 Cursor and link Signal 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 Signal once and use it everywhere.
Does linking ConnectChats weaken Signal's encryption?
Signal still encrypts messages on their way to every device, including ConnectChats. ConnectChats is one of those devices, so it can read the messages it receives. It then stores them encrypted with a key only your passkey can unlock. If you want a chat to stay out of it, do not share it, or do not link Signal.
Will I see my old Signal messages?
Mostly not. Signal shares little or no history with a newly linked device, so expect messages from the moment you link onward.
What do I need to link Signal?
Only Signal on your phone. Open https://connectchats.com/app, choose Signal, then scan the QR code from Settings, Linked devices, Link a new device in Signal.
Should I put ConnectChats in the project mcp.json?
Usually not. Your chats are personal, so the global ~/.cursor/mcp.json is the better place. If you commit a project file, teammates still sign in with their own passkey and see only their own chats.
Where do I see whether ConnectChats is connected?
Open Customize in the sidebar. Connection problems show in the Output panel under MCP Logs.
Related pages
Signal with other AI apps
Other chat apps in Cursor
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