PromptGuard for Claude Code

co.promptguard/security

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

client:Claude Code transport:stdio runtime:npm

Install PromptGuard in Claude Code

run in your project directory

claude mcp add security -e PROMPTGUARD_API_KEY=<PROMPTGUARD_API_KEY> -- npx -y @promptguard/mcp-server

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs