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uni-msg WhatsApp

Official registry Productivity

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

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http uni-msg-whatsapp 'https://uni-msg.com/mcp' --header 'Authorization: <Bearer <key>, using an API key from uni-msg Dashboard → API Keys>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "uni-msg-whatsapp": {
            "type": "http",
            "url": "https://uni-msg.com/mcp",
            "headers": {
                "Authorization": "<Bearer <key>, using an API key from uni-msg Dashboard → API Keys>"
            }
        }
    }
}
NPM package uni-msg-mcp-server
Claude Code 
claude mcp add uni-msg-whatsapp -e 'UNIMSG_API_KEY=<your unimsg_api_key>' -- npx -y uni-msg-mcp-server@0.3.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "uni-msg-whatsapp": {
            "command": "npx",
            "args": [
                "-y",
                "uni-msg-mcp-server@0.3.1"
            ],
            "env": {
                "UNIMSG_API_KEY": "<your unimsg_api_key>"
            }
        }
    }
}

Environment variables

  • UNIMSG_API_KEY required secret API key from uni-msg Dashboard → API Keys (starts with wsa_)

Frequently asked questions

What is uni-msg WhatsApp?

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

How do I install uni-msg WhatsApp?

It runs as a remote server. In Claude Code: claude mcp add --transport http uni-msg-whatsapp 'https://uni-msg.com/mcp' --header 'Authorization: <Bearer <key>, using an API key from uni-msg Dashboard → API Keys>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does uni-msg WhatsApp need an API key?

Yes. It expects UNIMSG_API_KEY, Authorization, which you set in its configuration.

Who maintains uni-msg WhatsApp?

It is published by com.uni-msg. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.