# ThornGuard

> Use this tool when you need to secure interactions between MCP clients and servers, protecting against threats like prompt injection and credential exposure. ThornGuard provides a proxy layer for ingress request blocking, egress data redaction, and policy enforcement, with audit logging capabilities. It is ideal for use cases requiring enhanced security and compliance, particularly in environments with multiple MCP clients such as Claude Desktop and VS Code.

Canonical page: https://skillsregistry.net/skills/thornguard  
JSON: https://api.skillsregistry.net/v1/skills/thornguard

## Description

ThornGuard is a security proxy layer that sits between MCP clients and upstream MCP servers, providing ingress request blocking, egress data redaction, policy enforcement, and audit logging. It protects against prompt injection, credential exposure, and unauthorized commands across Claude Desktop, VS Code, Cursor, Zed, and other MCP clients. Requires a Qwady license key and self-hosted configuration.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-04-25

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/thornguard)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "thornguard"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/thornguard` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/thornguard/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt