Proofmark Hash for Claude Desktop

io.github.samueldharshi/proofmark-hash

Hash text with SHA-256, SHA-512 or SHA3-256, and verify a digest.

client:Claude Desktop transport:stdio runtime:npm

Install Proofmark Hash in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "proofmark-hash": {
      "command": "npx",
      "args": [
        "-y",
        "proofmark-hash"
      ]
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs