uni-msg WhatsApp MCP Server

by uni-msg Your server? Claim it

answering

uni-msg WhatsApp is answering right now. Last checked 7 min ago. 351 installs a week from npm.

Drive WhatsApp from any MCP client: pair devices, send text and media, manage contacts and groups.

Installs per day peak 120 · avg 4

a month agotoday

Uptime history 8 days of history · worst day 91%

8 days agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

154 ms

Response time

average over 24h

351

Installs / week

npm and PyPI

uni-msg WhatsApp does not always answer

Over the last week it answered 98.7% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add whatsapp --transport http https://uni-msg.com/mcp

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

{
  "mcpServers": {
    "whatsapp": {
      "url": "https://uni-msg.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.whatsapp]
url = "https://uni-msg.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "whatsapp": {
      "url": "https://uni-msg.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "whatsapp": {
      "url": "https://uni-msg.com/mcp"
    }
  }
}

This endpoint answered with an authorization challenge — the server is running, but you need an API key or OAuth to use it.

Endpoints

URL	Transport	State	Latency	Checked
https://uni-msg.com/mcp	streamable-http	needs key	135 ms	7 min ago

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uni-msg WhatsApp — questions

Answers built from our own checks of this server.

Why is there no tool list for uni-msg WhatsApp?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is uni-msg WhatsApp working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 154 ms. The bar chart above shows every period we have measured.

How do I connect uni-msg 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 is a remote server, so there is nothing to install — the client connects to the address. You will need your own key or an OAuth login: it refuses anonymous clients.

Does uni-msg WhatsApp need an API key?

Yes. Every time we knock, uni-msg WhatsApp answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is uni-msg WhatsApp?

It answers our handshake in 154 ms on average, which is faster than 80% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use uni-msg WhatsApp?

The npm package uni-msg-mcp-server was installed 351 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.