Portunus MCP Server: Install & Setup

Install Portunus in Claude Code

Claude Code

claude mcp add portunus -- docker run -i --rm ghcr.io/mdostal/portunus:0.34.0

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

{
  "mcpServers": {
    "portunus": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/mdostal/portunus:0.34.0"
      ]
    }
  }
}

Frequently asked questions

What does the Portunus MCP server do?

Secret broker for agents: reference secrets by name; values injected only at the execution boundary.

Is the Portunus 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 Portunus run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Portunus to Claude Code?

Run: claude mcp add portunus -- docker run -i --rm ghcr.io/mdostal/portunus:0.34.0

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