Opgen

opgen MCP Server

• A Model Context Protocol (MCP) server implementation for password generation, based on 1Password/spg/cmd/opgen.
• The generated password will be copied to the clipboard.

Installation

go install github.com/syumai/opgen-mcp-server@latest

Usage

{
    // If you have installed opgen-mcp-server
    "opgen": {
        "command": "opgen-mcp-server",
    },
    // Alternative configuration
    "opgen": {
        "command": "go",
        "args": ["run", "github.com/syumai/opgen-mcp-server@latest"],
    },
}

Tools

generate_password_characters

Configurable options

• Password length
• Allowed character sets
• Required character sets
• Excluded character sets

Character sets

• uppercase
• lowercase
• digits
• symbols
• ambiguous

generate_password_words

Configurable options

• Number of words
• Word list selection:
  • words
  • syllables
• Word separator type:
  • hyphen
  • space
  • comma
  • period
  • underscore
  • digit
  • none
• Capitalization scheme:
  • none
  • first
  • all
  • random
  • one