TAR Engine MCP Server

Name: TAR Engine MCP Server
Author: io.github.qingxuantang

io.github.qingxuantang/tar-engine

Repository Registry

What is the TAR Engine MCP server?

Audit AI skill safety before you ship. Static, semantic, adversarial, supply chain scans.

How to install TAR Engine

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

TAR_ENGINE_URL
Override the audit backend. Default is the hosted playground at https://tarai.dev. Set to http://localhost:8765 (or your own tar-engine deployment) to self-host and keep SKILL.md content on your machine.
TAR_ENGINE_BYOK_OPENAI_KEY
secret
OpenAI API key that unlocks the semantic LLM and adversarial prompt-fuzz layers. Static and supply-chain layers run without it.
TAR_ENGINE_BYOK_ANTHROPIC_KEY
secret
Anthropic API key alternative to the OpenAI key for the semantic and adversarial layers.

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "tar-engine": {
      "command": "uvx",
      "args": [
        "tar-engine",
        "tar-engine",
        "tar-engine-mcp"
      ],
      "env": {
        "TAR_ENGINE_URL": "<YOUR_TAR_ENGINE_URL>",
        "TAR_ENGINE_BYOK_OPENAI_KEY": "<YOUR_TAR_ENGINE_BYOK_OPENAI_KEY>",
        "TAR_ENGINE_BYOK_ANTHROPIC_KEY": "<YOUR_TAR_ENGINE_BYOK_ANTHROPIC_KEY>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "tar-engine": {
      "command": "uvx",
      "args": [
        "tar-engine",
        "tar-engine",
        "tar-engine-mcp"
      ],
      "env": {
        "TAR_ENGINE_URL": "<YOUR_TAR_ENGINE_URL>",
        "TAR_ENGINE_BYOK_OPENAI_KEY": "<YOUR_TAR_ENGINE_BYOK_OPENAI_KEY>",
        "TAR_ENGINE_BYOK_ANTHROPIC_KEY": "<YOUR_TAR_ENGINE_BYOK_ANTHROPIC_KEY>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "tar-engine": {
      "command": "uvx",
      "args": [
        "tar-engine",
        "tar-engine",
        "tar-engine-mcp"
      ],
      "env": {
        "TAR_ENGINE_URL": "<YOUR_TAR_ENGINE_URL>",
        "TAR_ENGINE_BYOK_OPENAI_KEY": "<YOUR_TAR_ENGINE_BYOK_OPENAI_KEY>",
        "TAR_ENGINE_BYOK_ANTHROPIC_KEY": "<YOUR_TAR_ENGINE_BYOK_ANTHROPIC_KEY>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "tar-engine": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "tar-engine",
        "tar-engine",
        "tar-engine-mcp"
      ],
      "env": {
        "TAR_ENGINE_URL": "<YOUR_TAR_ENGINE_URL>",
        "TAR_ENGINE_BYOK_OPENAI_KEY": "<YOUR_TAR_ENGINE_BYOK_OPENAI_KEY>",
        "TAR_ENGINE_BYOK_ANTHROPIC_KEY": "<YOUR_TAR_ENGINE_BYOK_ANTHROPIC_KEY>"
      }
    }
  }
}

Claude Code

claude mcp add tar-engine --env TAR_ENGINE_URL=<YOUR_TAR_ENGINE_URL> --env TAR_ENGINE_BYOK_OPENAI_KEY=<YOUR_TAR_ENGINE_BYOK_OPENAI_KEY> --env TAR_ENGINE_BYOK_ANTHROPIC_KEY=<YOUR_TAR_ENGINE_BYOK_ANTHROPIC_KEY> -- uvx tar-engine tar-engine tar-engine-mcp