mcp_proxy_elixir

> [!WARNING] > This project is deprecated. Use [the Rust MCP Proxy](https://github.com/tidewave-ai/mcp_proxy_rust) instead, which is easier to install if you don't already have Elixir. # mcp-proxy An Elixir escript for connecting STDIO based MCP clients to HTTP (SSE) based MCP servers. Note: At the moment this only works with MCP servers that use the `2024-11-05` specification. ## Installation ```bash $ mix escript.install hex mcp_proxy ``` The escript is installed into your HOME's `.mix` directory: `/path/to/home/.mix/escripts/mcp-proxy`. ## Usage If you have an SSE MCP server available at `http://localhost:4000/tidewave/mcp`, a client like Claude Desktop would then be configured as follows. ### On macos/Linux You will also need to know the location of the `escript` executable, so run `which escript` before to get the value of "path/to/escript": ```json { "mcpServers": { "my-server": { "command": "/path/to/escript", "args": ["/$HOME/.mix/escripts/mcp-proxy", "http://localhost:4000/tidewave/mcp"] } } } ``` Remember to replace `$HOME` by your home directory, such as "/Users/johndoe". ### On Windows ```json { "mcpServers": { "my-server": { "command": "escript.exe", "args": ["c:\$HOME\.mix\escripts\mcp-proxy", "http://localhost:4000/tidewave/mcp"] } } } ``` Remember to replace `$HOME` by your home directory, such as "c:\Users\johndoe". ## Configuration `mcp-proxy` either accepts the SSE URL as argument or using the environment variable `SSE_URL`. For debugging purposes, you can also pass `--debug`, which will log debug messages on stderr. Other supported flags: * `--max-disconnected-time` the maximum amount of time for trying to reconnect while disconnected. When not set, defaults to infinity. * `--receive-timeout` the maximum amount of time to wait for an individual reply from the MCP server in milliseconds. Defaults to 60000 (60 seconds).