Nostr MCP Server vs WhatsApp MCP Server (lharries)

A side-by-side comparison of two Communication servers — tools, transport, auth, maintenance, and copy-paste config for each.

	Nostr MCP Server Let AI models post notes and send Lightning zaps on the Nostr protocol. Unverified stdio (local) API key Stale TypeScript	WhatsApp MCP Server (lharries) Connect your personal WhatsApp: search, read and send messages and media locally Verified stdio (local) No auth Python
Category	Communication	Communication
Language	TypeScript	Python
Transport	stdio (local)	stdio (local)
Auth	API key	None
GitHub stars	37	5.7k
Last commit	1 year ago	1 month ago
Verified
Actively maintained
Install	`npx -y @smithery/cli install @AbdelStark/nostr-mcp --client claude`	`git clone https://github.com/lharries/whatsapp-mcp && cd whatsapp-mcp/whatsapp-bridge && go run main.go`
Repo	Open	Open

Verdict

Pick Nostr MCP Server if you prefer its approach (let ai models post notes and send lightning zaps on the nostr protocol).

Pick WhatsApp MCP Server (lharries) if you prefer the more popular, battle-tested option, and you want zero-setup with no API key.

Add Nostr MCP Server

Install / run

npx -y @smithery/cli install @AbdelStark/nostr-mcp --client claude

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

{
  "mcpServers": {
    "nostr-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@AbdelStark/nostr-mcp",
        "--client",
        "claude"
      ],
      "env": {
        "NOSTR_RELAYS": "wss://relay.damus.io,wss://relay.primal.net,wss://nos.lol",
        "NOSTR_NSEC_KEY": "your_nsec_key_here"
      }
    }
  }
}

Add WhatsApp MCP Server (lharries)

Install / run

git clone https://github.com/lharries/whatsapp-mcp && cd whatsapp-mcp/whatsapp-bridge && go run main.go

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

{
  "mcpServers": {
    "whatsapp-mcp-server-lharries": {
      "command": "uv",
      "args": [
        "--directory",
        "/absolute/path/to/whatsapp-mcp/whatsapp-mcp-server",
        "run",
        "main.py"
      ]
    }
  }
}

FAQ

Nostr MCP Server or WhatsApp MCP Server (lharries) — which is better?

Pick Nostr MCP Server if you prefer its approach (let ai models post notes and send lightning zaps on the nostr protocol). Pick WhatsApp MCP Server (lharries) if you prefer the more popular, battle-tested option, and you want zero-setup with no API key.

Can I use both Nostr MCP Server and WhatsApp MCP Server (lharries)?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do Nostr MCP Server and WhatsApp MCP Server (lharries) work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View Nostr MCP Server →View WhatsApp MCP Server (lharries) →More comparisons →