How do I install TAR Engine?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is TAR Engine official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 50 (Fair). The formula is published on the methodology page.

MCPpedia

TAR Engine MCP Server | MCPpedia

TAR Engine MCP Server

Name: TAR Engine MCP Server
Author: qingxuantang

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

Tools Versions Alternatives

Registryqingxuantang

50Fair

Install

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

{
  "mcpServers": {
    "qingxuantang-tar-engine": {
      "command": "uvx",
      "args": [
        "tar-engine"
      ],
      "env": {
        "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"
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
TAR_ENGINE_URL	No	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	No	OpenAI API key that unlocks the semantic LLM and adversarial prompt-fuzz layers. Static and supply-chain layers run without it. Secret.
TAR_ENGINE_BYOK_ANTHROPIC_KEY	No	Anthropic API key alternative to the OpenAI key for the semantic and adversarial layers. Secret.

TAR Engine MCP Server

Install

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Environment

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