MCP Server

PromptGuard MCP Server

Name: PromptGuard MCP Server
Author: co.promptguard

co.promptguard/security

Repository Registry

What is the PromptGuard MCP server?

Scan prompts for injection attacks, redact PII, and audit LLM SDK usage from any MCP client

How to install PromptGuard

Copy-paste configuration for popular MCP clients.

transport: stdio

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

Environment / auth

PROMPTGUARD_API_KEY
secret
PromptGuard API key (starts with pg_sk_test_ or pg_sk_prod_)
PROMPTGUARD_API_URL
API base URL for self-hosted deployments

Claude Desktop

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

{
  "mcpServers": {
    "security": {
      "command": "npx",
      "args": [
        "-y",
        "@promptguard/mcp-server"
      ],
      "env": {
        "PROMPTGUARD_API_KEY": "<YOUR_PROMPTGUARD_API_KEY>",
        "PROMPTGUARD_API_URL": "<YOUR_PROMPTGUARD_API_URL>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "security": {
      "command": "npx",
      "args": [
        "-y",
        "@promptguard/mcp-server"
      ],
      "env": {
        "PROMPTGUARD_API_KEY": "<YOUR_PROMPTGUARD_API_KEY>",
        "PROMPTGUARD_API_URL": "<YOUR_PROMPTGUARD_API_URL>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "security": {
      "command": "npx",
      "args": [
        "-y",
        "@promptguard/mcp-server"
      ],
      "env": {
        "PROMPTGUARD_API_KEY": "<YOUR_PROMPTGUARD_API_KEY>",
        "PROMPTGUARD_API_URL": "<YOUR_PROMPTGUARD_API_URL>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "security": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@promptguard/mcp-server"
      ],
      "env": {
        "PROMPTGUARD_API_KEY": "<YOUR_PROMPTGUARD_API_KEY>",
        "PROMPTGUARD_API_URL": "<YOUR_PROMPTGUARD_API_URL>"
      }
    }
  }
}

Claude Code

claude mcp add security --env PROMPTGUARD_API_KEY=<YOUR_PROMPTGUARD_API_KEY> --env PROMPTGUARD_API_URL=<YOUR_PROMPTGUARD_API_URL> -- npx -y @promptguard/mcp-server