Available Tools

• sanitize_filename: Automatically removes forbidden characters and handles Windows reserved names to prevent InvalidCharError.
• detect_homoglyphs: Scans strings for Unicode lookalike characters, zero-width spaces, and invisible markers used in spoofing attacks.
• format_json: Validates, prettifies, or minifies JSON strings. Can recursively sort JSON keys.
• calculate_time_difference: Precisely calculates the duration between two ISO-8601 date strings down to the millisecond.

How to Connect (Claude Desktop / Cursor)

We provide an SSE (Server-Sent Events) endpoint. You can connect to it using the official MCP Inspector proxy, which bridges stdio to our remote web server.

Add the following configuration to your claude_desktop_config.json or Cursor settings:

{
  "mcpServers": {
    "useful-utilities": {
      "command": "npx",
      "args": [
        "-y", 
        "@modelcontextprotocol/inspector", 
        "https://www.usefulutils.in/api/mcp"
      ],
      "env": {
        "AUTHORIZATION": "Bearer YOUR_FREE_API_KEY"
      }
    }
  }
}