Kaption WhatsApp MCP Server

by kaption-ai Your server? Claim it

local only

Kaption WhatsApp runs on your own machine — the client starts it, so there is no endpoint to ping. 656 installs a week from npm. Last commit 6 Oct 2026.

Read and manage your WhatsApp conversations through the KaptionAI browser extension.

Installs per day peak 291 · avg 38 · +901% w/w

a month agotoday

656

Installs / week

npm · @kaptionai/mcp-extension

Stars

0 open issues

6 Oct 2026

Last commit

1 release in 90 days

BUSL-1.1

License

TypeScript

Nothing serious here today

Today is the operative word: we check Kaption WhatsApp every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp-extension -- npx -y @kaptionai/mcp-extension

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-extension": {
      "args": [
        "-y",
        "@kaptionai/mcp-extension"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp-extension]
command = "npx"
args = ["-y", "@kaptionai/mcp-extension"]

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-extension": {
      "args": [
        "-y",
        "@kaptionai/mcp-extension"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp-extension": {
      "args": [
        "-y",
        "@kaptionai/mcp-extension"
      ],
      "command": "npx"
    }
  }
}

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Kaption WhatsApp — questions

Answers built from our own checks of this server.

Why is there no uptime for Kaption WhatsApp?

Kaption WhatsApp runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @kaptionai/mcp-extension was installed 656 times last week.

How do I connect Kaption WhatsApp?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @kaptionai/mcp-extension straight from npm; nothing to host, nothing to sign up for.

How many people use Kaption WhatsApp?

The npm package @kaptionai/mcp-extension was installed 656 times in the last week. Week over week that is +901%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Kaption WhatsApp open source?

No, and the distinction matters: its licence is declared as BUSL-1.1. That makes it source-available — you can read the code, but the terms are the author's own, not one of the recognised open-source licences. Read them before you build on it.