mcpfold

mcpfold is a local-first command-line interface and proxy designed to centralize and curate your MCP (Model-Client Protocol) server configurations. Key features include: • Single canonical configuration file for all MCP clients • Curate tools for each client, reducing context overhead • References for secrets, preventing hardcoded values • Support for multiple clients like Claude Code, Cursor, and VS Code • Open-source and local-first operation This utility allows developers to write server configurations once and then 'fold' them out to various MCP clients, each in its native format. It addresses the common problem of excessive tool schema tokens being sent to language models by letting users select only the necessary tools for each agent, dramatically cutting context window usage—up to an 80% reduction in tool-schema tokens. Secrets are managed securely through environment variable references, ensuring sensitive information is never hardcoded. mcpfold is ideal for software developers, engineering teams, and technical users who work with multiple client applications and need a consistent, efficient way to manage their server interactions. It streamlines configuration management, improves security by handling secrets judiciously, and optimizes performance for language model interactions by minimizing unnecessary data transfer. This ensures a clean, organized, and performant developer environment across all your integrated tools.