KeyHalve MCP Server: Install & Setup

Install KeyHalve in Claude Code

Remote URL

Claude Code

claude mcp add --transport http keyhalve-verify-sealed-documents https://mcp.keyhalve.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "keyhalve-verify-sealed-documents": {
      "url": "https://mcp.keyhalve.com/mcp"
    }
  }
}

npm

Claude Code

claude mcp add keyhalve-verify-sealed-documents -- npx -y @keyhalve/verify-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "keyhalve-verify-sealed-documents": {
      "command": "npx",
      "args": [
        "-y",
        "@keyhalve/verify-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the KeyHalve MCP server do?

Free, no-account verification of KeyHalve-sealed documents. Read-only; never receives keys.

Is the KeyHalve MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does KeyHalve run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add KeyHalve to Claude Code?

Run: claude mcp add --transport http keyhalve-verify-sealed-documents https://mcp.keyhalve.com/mcp

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