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# key-guard A local MCP server that keeps API keys off Claude's servers. ## Why This Exists When Claude reads a file containing an API key, the raw key content gets sent to Claude's servers. key-guard prevents this by acting as a local middleman — Claude calls a tool, the tool reads the key and makes the API call locally, and only the result is returned to Claude.
domjeff
Security guardrail: prevents API keys from being sent to Claude. Triggers when user asks to call an external API, use a key, check credentials, read .env fil...