A generic MCP SSE <-> Stdio bridge with advanced security and SSL/TLS support.
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# MCP Stdio Bridge A generic, professional-grade gateway that bridges Model Context Protocol (MCP) servers between **SSE (Server-Sent Events)** and **Stdio** transports. ## Features - **Generic Bridge**: Works with any executable that speaks MCP over stdio. - **Command Wrapper Mode**: Directly wrap any CLI utility (like `wp-cli`, `git`, or custom scripts) into a restricted MCP server without writing external scripts. - **Dual Transport Support**: Run over **SSE (HTTP/HTTPS)** for remote access or **Stdio** for local use by MCP clients. - **100% Test Coverage**: Exhaustive test suite ensuring stability across all transports, operational modes, and failure paths. - **YAML Configuration**: Easily manage settings via a central config file. - **Dynamic Configuration Reload**: Opt-in feature to live-reload settings from `config.yaml` without dropping active sessions — via the `--watch-config` file watcher or by sending `SIGHUP` on POSIX systems. - **Daemon Mode**: `--daemonize` performs a POSIX double-fork to detach from the terminal; pair with `--pid-file` for init system and supervisor integration. - **Idle Session Timeouts**: Automatically terminates stalled proxy and wrapper sessions to prevent resource leaks. - **Process Management**: Automatically spawns, manages, and cleans up subprocesses for bridging. - **Security**: - API key authentication (Header or Query Param). - Restricted argument prefixing and regex filtering for wrapped commands. - Built-in **Directory Traversal Protection** for local tool execution. - **Environment Scrubbing**: Allowlist/Denylist variables passed to subprocesses. - **Secret Masking**: Sensitive keys are automatically hidden from logs. - Connection limiting and message size throttling. - SSL/TLS with client certificate and CRL support. - HSTS and secure security headers. ## Installation Install the package using pip: ```bash pip install mcp-stdio-bridge ``` ## Documentation For detailed information on configurin…
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