ws-mcp
Wrap MCP stdio servers with a WebSocket. For use with kibitz.
Quickstart
Prerequisites
Install uv:
curl -LsSf https://astral.sh/uv/install.sh | shConfiguration
The config file specifies which MCP servers to run.
The default config (no --config or --command args provided) includes:
To make a configuration file:
- Create your configuration file:
cp sample.config.json config.json - Modify
config.jsonto add or remove servers based on your needs. - Run with
--config path/to/config.jsonto use the new config file.
Running ws-mcp
Basic usage with default config file (no --config or --command provided) and port:
uvx --refresh ws-mcp@latestThis will start all configured servers on the default port (10125).
To use a config file and port:
uvx --refresh ws-mcp@latest --config path/to/config --port 10125Detailed Usage
# 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
