Mcpproxy Go

MCPProxy is a local, open source proxy that sits between AI clients and Model Context Protocol (MCP) servers. Instead of configuring the same servers separately in Claude Code, Codex, OpenCode and Cursor, a developer sets them up once in MCPProxy, chooses what each client may access and sees what ran. The workflow has four steps: add local and remote MCP servers to one configuration, choose how new tools are reviewed, scope each agent's access, then point clients at the proxy. For security it offers quarantine of new tools, review of tool changes, an offline scanner and the option to have an agent or a person inspect quarantined tools. Profiles group servers, and scoped, revocable tokens give individual agents defined boundaries. The tool also helps agents discover tools on demand and keeps a record of activity. It targets developers and teams who run many MCP servers and want tighter control over what coding agents can call. Installers are provided for macOS as a DMG with an auto updater, for Windows on x64 and ARM64, and for Linux through apt and dnf repositories and DEB and RPM packages. A Homebrew formula installs the command line version. MCPProxy is free and released under the MIT license. The site publishes no paid plans.