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nick1udwig

ws-mcp

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19 stars PythonOthers Updated Aug 18, 2025

Documentation

ws-mcp

Wrap MCP stdio servers with a WebSocket.

For use with kibitz.

Quickstart

Prerequisites

Install uv:

bash
curl -LsSf https://astral.sh/uv/install.sh | sh

Configuration

The config file specifies which MCP servers to run.

The default config (no `--config` or `--command` args provided) includes:

  • `wcgw`: For general system operations and file management
  • `fetch`: For making HTTP requests

To make a configuration file:

1. Create your configuration file:

bash
cp sample.config.json config.json

2. Modify `config.json` to add or remove servers based on your needs.

3. Run with `--config path/to/config.json` to use the new config file.

Running ws-mcp

Basic usage with default config file (no `--config` or `--command` provided) and port:

bash
uvx --refresh ws-mcp@latest

This will start all configured servers on the default port (`10125`).

To use a config file and port:

bash
uvx --refresh ws-mcp@latest --config path/to/config --port 10125

Detailed Usage

bash
# Example using fetch
uvx --refresh ws-mcp --command "uvx mcp-server-fetch" --port 3002

# Example using wcgw
uvx --refresh ws-mcp --command "uvx --from wcgw@latest --python 3.12 wcgw_mcp" --port 3001

# Example using Brave search
export BRAVE_API_KEY=YOUR_API_KEY_HERE
uvx --refresh ws-mcp --env BRAVE_API_KEY=$BRAVE_API_KEY --command "npx -y @modelcontextprotocol/server-brave-search" --port 3003

# Or, with a .env file:
uvx --refresh ws-mcp --env-file path/to/.env --command "npx -y @modelcontextprotocol/server-brave-search" --port 3003

# `--command` can be supplied multiple times!
#  Example serving multiple servers at once:
uvx --refresh ws-mcp --env-file path/to/.env --command "npx -y @modelcontextprotocol/server-brave-search" --command "uvx mcp-server-fetch" --port 3004

# Servers can also be specified in a `.json` file following [the standard MCP format](https://modelcontextprotocol.io/quickstart/user#2-add-the-filesystem-mcp-server)
uvx --refresh ws-mcp --env-file path/to/.env --config path/to/config.json --port 3005

Frequently asked questions

What is ws-mcp?

ws-mcp is a Model Context Protocol (MCP) server listed in the TrackMCP directory.

How do I install ws-mcp?

Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.

Is ws-mcp open source?

Yes — it is hosted on GitHub at https://github.com/nick1udwig/ws-mcp and has 19 stars.

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