01
Turn on Cloud MCP in Kaption
In WhatsApp Web with the Kaption extension (Chrome or Edge), open AI Assistants (MCP) › Cloud Bridge › Enable. In the Kaption desktop app, switch on Cloud MCP in Settings. Keep Kaption open while Cursor works.
MCP · Cursor
Summarize WhatsApp chats with Cursor
Connect WhatsApp to Cursor through Kaption, then ask for a summary of any chat or group by name. Cursor reads the recent messages, with the text of transcribed voice notes, and tells you what was decided and what is waiting for you.
MCP server address
https://mcp.kaptionai.com/mcpShort answer
How do I summarize a WhatsApp chat with Cursor?
Turn on Cloud MCP in Kaption, add https://mcp.kaptionai.com/mcp to Cursor and sign in with a code on WhatsApp. Then ask “summarize today’s Sales group”: Cursor finds the chat, reads its recent messages through Kaption on your computer, or asks Kaption for its own summary of up to 500 messages, and answers in the conversation. It is unlimited in your first 60 days; after that it uses your plan’s monthly credits.
What do I need to do this in Cursor?
Kaption open on your computer (the extension in WhatsApp Web, in Chrome or Edge, or the Kaption desktop app) with Cloud MCP on, a Kaption account (every account starts with 60 days of Business, unlimited; after that, a plan with credits), and Cursor. Setup takes three steps:
- 02
Install the server in Cursor
Click Add to Cursor on the setup page, or add https://mcp.kaptionai.com/mcp as a server named whatsapp in ~/.cursor/mcp.json (every project) or .cursor/mcp.json (one project).
- 03
Sign in and ask the agent
Enter your phone number and the 6-digit code Kaption sends you on WhatsApp. Then ask the agent in Cursor’s chat; there is no API key to paste.
What should I ask Cursor?
Copy a prompt, paste it into Cursor and change the names to your own chats and contacts.
Summarize today’s messages in the Sales group: decisions, open questions, and anything addressed to me.
What happened in my chat with Marta this week? Give me five bullet points.
Which of my unread chats need a reply from me today? One line each.
Summarize the last 200 messages in the Family group and list any dates or plans mentioned.
Summarize what the client said in the Acme group about the login bug and list the steps they reported.
What can Cursor do here, and what can’t it?
It can
- Find a chat or group by name and read its recent messages, with the text of voice notes Kaption has transcribed.
- Get Kaption’s summary of a conversation, built from up to 500 recent messages, or write its own from the messages it read.
- List your unread chats and tell you which ones look like they need you.
- Keep going from the summary: set a reminder, or draft a reply for you to check.
- Work in VS Code, Windsurf, Zed and other editors with remote MCP and OAuth, at the same address. For a local connection, use npx -y @kaptionai/mcp-extension@latest (Node.js 18 or newer).
It can’t
- Read locked chats. They are never visible to the assistant.
- Summarize audio that has no transcript: it reads text, so transcribe the voice notes in Kaption first.
- Work while Kaption is closed. Open WhatsApp Web with the extension, or the desktop app, or the tools answer “Extension not connected”.
- Promise a perfect summary. AI can miss sarcasm, inside jokes and who replied to whom, so check the messages before you act on anything important.
What leaves my computer?
Cursor receives the messages it reads, or the summary Kaption returns. When Kaption writes the summary, only the text of those messages goes to Kaption’s AI, without your name, number or contacts, and it is never used to train AI models.
Kaption’s relay at mcp.kaptionai.com checks your sign-in and passes each request to Kaption on your computer, which runs it against your WhatsApp and sends back only the answer; the relay does not keep your chats. What comes back, such as message text, names and numbers, goes to Cursor, which handles it under its own privacy terms. Locked chats are never visible to the assistant, and you can disconnect at any time.
How many credits does my plan include?
Claude and ChatGPT are unlimited in every account’s first 60 days; after that they need a plan, counted in credits per calendar month: Lifetime local AI 50, Pro 250, and Business 500 with its 2 numbers plus 250 for each extra number, shared by all its numbers, the plan to pick when an assistant uses WhatsApp every day. Business Agent includes them with fair use. A read uses 1 credit, a send 2 and a summary 3. See plans and prices
Questions
Can Cursor summarize a WhatsApp group?
Yes. Name the group in your request. Cursor looks it up with Kaption, reads its recent messages and summarizes them. For a busy group, say how far back to go, for example “since this morning” or “the last 300 messages”.
How far back can it read?
As far back as you ask, in batches: Cursor can ask Kaption for earlier messages before a date. Kaption’s own summary uses up to 500 recent messages. Each batch is a read and uses 1 credit, so long reads use more of your monthly credits.
Does it work with WhatsApp Business?
Yes. Kaption works with personal and WhatsApp Business accounts. With more than one number connected, Cursor can pick the account to read from.
Does it work in VS Code too?
Yes. The Cursor setup page has an Add to VS Code button, and any editor that supports remote MCP servers with OAuth can use the same address.
Connect WhatsApp to Cursor
Turn on Cloud MCP in Kaption, add the address to Cursor and sign in with a code on WhatsApp.
Set up WhatsApp in Cursor