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 Claude works.
Ask Claude for your WhatsApp contacts as CSV, the members of a group, or a chat’s messages as a file. Kaption builds the export on your computer and Claude shows it as a table or text you can save.
MCP server address
https://mcp.kaptionai.com/mcpShort answer
Connect WhatsApp to Claude with Kaption’s MCP server and ask “export my saved WhatsApp contacts as CSV”. Kaption builds the list from WhatsApp on your computer, deduplicated by phone number and sorted by name, and Claude returns it. It can also list a group’s members or export a chat’s messages as CSV, JSON or text. It is unlimited in your first 60 days; after that it uses your plan’s monthly credits.
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 Claude. Setup takes three steps:
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 Claude works.
Go to Customize › Connectors, click + Add › Add custom connector, name it WhatsApp and paste https://mcp.kaptionai.com/mcp.
Enter your phone number and the 6-digit code Kaption sends you on WhatsApp. Then, in a Claude chat, click + › Connectors and turn WhatsApp on.
Copy a prompt, paste it into Claude and change the names to your own chats and contacts.
Export my saved WhatsApp contacts as CSV with name and phone.
List everyone in the Parents group with their phone numbers, as a table.
Which groups is Martín in with me?
Export my chat with the accountant from this month as text, with the voice-note transcripts.
Export my contacts as CSV and list the ones that have no saved name.
The export is built in Kaption on your computer from WhatsApp’s data. The list or messages are then sent to Claude, so the names and phone numbers in it leave your computer at that point. Export only what you need.
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 Claude, which handles it under its own privacy terms. Locked chats are never visible to the assistant, and you can disconnect at any time.
Up to six: the WhatsApp ID, phone number, saved name, the name the person set in WhatsApp, whether they are a saved contact, and whether the account is a business. Ask Claude for only the ones you need.
No. An export is a one-off list or file that goes to Claude. Kaption Backups keeps an encrypted copy of all your chats in a folder you choose, and nothing goes to an assistant.
The chat export has the messages and voice-note transcripts, not the media files. Claude can download a single photo, document or voice note from a message if you ask.
No. Claude Free can add one custom connector, which is enough for Kaption. On Team and Enterprise, an owner adds the connector once in Organization settings › Connectors and each member clicks Connect.
Turn on Cloud MCP in Kaption, add the address to Claude and sign in with a code on WhatsApp.
Set up WhatsApp in Claude