---
title: "Use WhatsApp in Claude as a custom connector"
description: "Add Kaption’s WhatsApp MCP server to Claude as a custom connector. Claude can search chats, summarize conversations, find contacts and set reminders."
canonical: "https://kaptionai.com/mcp/claude/"
lang: "en"
---

# Use WhatsApp in Claude as a custom connector

> Add Kaption’s WhatsApp MCP server to Claude as a custom connector. Claude can search chats, summarize conversations, find contacts and set reminders.

Canonical: https://kaptionai.com/mcp/claude/

Add Kaption’s MCP server to Claude and ask it to search your chats, summarize a group, find a contact or set a reminder. You sign in with a code on WhatsApp, and you can disconnect at any time.

## Your WhatsApp, where you already work with Claude

Ask “what did the supplier say about delivery this week?” or “summarize today’s Sales group” and Claude reads the answer from your WhatsApp, through Kaption running on your computer.

## How to connect

1. **Turn on Cloud MCP in Kaption.** Open WhatsApp Web in Chrome or Edge with the Kaption extension, then AI Assistants (MCP) › Cloud Bridge › Enable. In the Kaption desktop app, switch on Cloud MCP in Settings. Keep it open while the assistant works: the tools only reach WhatsApp while Kaption runs.
2. **Add a custom connector in Claude.** In Claude, go to Customize › Connectors, click + Add, then Add custom connector. Name it WhatsApp, paste the address below and click Continue, then Add.
3. **Sign in with a code on WhatsApp.** The app opens Kaption’s sign-in page. Enter your phone number, type the 6-digit code Kaption sends you on WhatsApp, and choose how long the connection lasts: while you use it (it ends after 90 days without use), 1 year, or until you disconnect it.
4. **Turn it on in a chat.** In a conversation, click + › Connectors and switch WhatsApp on. Then ask Claude about your chats.

MCP server address: `https://mcp.kaptionai.com/mcp` (Streamable HTTP, OAuth 2.1).

## Good to know

- **Claude plans:** Custom connectors work on Claude Free, Pro, Max, Team and Enterprise. Free accounts can add one custom connector.
- **Team and Enterprise:** An owner adds the connector once in Organization settings › Connectors; each member then clicks Connect under Customize › Connectors.
- **Claude Code:** Run: claude mcp add --transport http whatsapp https://mcp.kaptionai.com/mcp, then sign in when Claude Code asks.
- **What Claude can do:** Search and read chats, summarize conversations, look up contacts and groups, manage labels, notes and reminders, and schedule a message after you confirm it.

## Plan and limits

MCP works on every plan. Free: unlimited for your first 60 days, then 20 tool calls a week. Basic: 20 tool calls a week. Pro: 100 tool calls a week, the plan to pick when an assistant uses WhatsApp every day. Prices: https://kaptionai.com/pricing/ ([pricing.md](https://kaptionai.com/pricing.md)).

## Questions

### Do I need Claude Pro?

No. Claude Free can add one custom connector, which is enough for Kaption.

### Can the assistant send messages on its own?

No message is sent immediately. The assistant can schedule one message to one 1:1 chat, up to 800 characters, and it should confirm the text and the time with you first. Locked chats are never visible to it.

### Does Kaption store my chats on its servers?

No. The 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.

### What does “Extension not connected” mean?

Kaption is closed, or Cloud MCP is off. Open WhatsApp Web with the Kaption extension, or the desktop app, and turn the connection on.