MCP Proxy Sidecar

@dortegau

代码仓库

基本信息

分类

开发工具

许可证

Apache-2.0

传输方式

stdio

作者

dortegau

关于 MCP Proxy Sidecar

A fork of JetBrains MCP Server that adds real-time WebSocket monitoring of all MCP interactions

MCP Proxy Sidecar 配置

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该服务器的 README 中没有可解析的 MCP 配置块，请前往代码仓库查看安装说明。

代码仓库

MCP Proxy Sidecar 工具

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工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is MCP Proxy Sidecar?

MCP Proxy Sidecar is a fork of the JetBrains MCP Server that adds WebSocket monitoring capabilities. It acts as a proxy between MCP clients (like Claude Desktop) and JetBrains IDEs, broadcasting all tool calls via WebSocket for real-time observability.

How to use MCP Proxy Sidecar?

Install the JetBrains MCP Server plugin, then configure your MCP client (e.g., Claude Desktop) to run npx -y mcp-proxy-sidecar with optional environment variables such as WS_PORT. The sidecar automatically scans ports 63342–63352 to find the IDE.

Key features of MCP Proxy Sidecar

Real-time WebSocket notifications for all MCP tool calls
Configurable WebSocket port via WS_PORT environment variable
Automatic port scanning for IDE connection (63342–63352)
Debug logging toggle via LOG_ENABLED environment variable
Fork maintains full compatibility with the original JetBrains implementation

Use cases of MCP Proxy Sidecar

Monitor all MCP tool calls from a JetBrains IDE in real time
Debug and inspect arguments and timestamps of IDE operations
Integrate with external monitoring dashboards via WebSocket

常见问题

What is the difference between MCP Proxy Sidecar and the original JetBrains MCP Server?

MCP Proxy Sidecar is a fork that adds WebSocket notifications for monitoring tool calls. It retains all original features while broadcasting call details in real time.

How do I configure the WebSocket port?

Set the `WS_PORT` environment variable to your desired port (default: `27042`) in your MCP client configuration (e.g., `claude_desktop_config.json`).

What are the runtime dependencies?

Node.js 20.x and pnpm (latest) are required for development. For usage, only Node.js is needed (via `npx`).

Where does the tool call data live?

Data is broadcast locally via WebSocket on `127.0.0.1`; no external service is involved.

What transport does MCP Proxy Sidecar use?

MCP communication uses stdio, and monitoring is provided over WebSocket (default port 27042).

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