vaulted-fyi/vaulted-mcp-server

What it does

Vaulted MCP Server is a Model Context Protocol (MCP) server that provides secure secret sharing capabilities for AI agents. It implements zero-knowledge end-to-end encryption to ensure that sensitive information remains encrypted throughout the entire chain, preventing LLM context leakage. The tool supports multiple agent-blind input sources (environment variables, files, dotenv files) that allow secrets to be accessed without exposing them to the language model's context window.

How to set up

Installation involves cloning the vaulted-mcp-server repository and configuring it as an MCP server within your AI agent environment. Configure your agent to connect to the server endpoint and specify input sources (env:, file:, or dotenv: prefixes) for secret retrieval. The server manages encryption/decryption transparently while keeping the actual secret values hidden from LLM processing.

Key features

• Zero-knowledge E2E encryption for maximum security
• Self-destructing secrets with automatic expiration
• Agent-blind input sources prevent secrets from entering LLM context
• Support for multiple input types (environment variables, files, dotenv)
• MCP protocol integration with multiple AI platforms
• Cross-platform compatibility (Windows, macOS, Linux)