# mcp-guard

> Use this tool when you need to secure MCP servers from destructive operations by intercepting and blocking HTTP requests based on customizable keyword patterns. It solves problems of unauthorized access and accidental data modifications by providing a JSON-based gate system to filter incoming requests. Ideal for use cases where upstream server protection is crucial, such as database security.

Canonical page: https://skillsregistry.net/skills/alramalho-mcp-guard  
JSON: https://api.skillsregistry.net/v1/skills/alramalho-mcp-guard

## Description

An HTTP proxy that secures MCP servers by intercepting tool calls and blocking requests based on configurable keyword patterns. It provides a simple way to prevent destructive operations on upstream servers like databases through a JSON-based gate system.

## Trust

- **Trust score (0–1):** 0.88
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** database
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/kynd7e36xj)
- **Repository:** <https://github.com/alramalho/mcp-guard>

## 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": "alramalho-mcp-guard"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/alramalho-mcp-guard` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/alramalho-mcp-guard/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