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MCP Server Rust

@lotharschulz

Repository

Basic information

Category

Other

Transports

stdio

Author

lotharschulz

About MCP Server Rust

Rust MCP Local Server

#rust#mcp#mcp-server

MCP Server Rust config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcp-server": {
      "command": "node",
      "args": [
        "[your local path]/mcpserver/build/index.js"
      ]
    }
  }
}

MCP Server Rust tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Mcp Server Rust?

Mcp Server Rust integrates a Rust function (e.g., factorial) into an MCP client like Claude Desktop. It compiles Rust to WebAssembly, then serves it through a Node.js MCP server. This is for developers who want to call Rust code from an MCP‑based AI assistant.

How to use Mcp Server Rust?

First, build the Rust code with npm run build:wasm:release, then install dependencies with npm install. Next, add the server to Claude Desktop’s configuration file (~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows) as a custom MCP server. Finally, start Claude Desktop and consent to use the MCP server function.

Key features of Mcp Server Rust

  • Compiles Rust functions to WebAssembly
  • Exposes a factorial function as an MCP tool
  • Integrates with Claude Desktop via stdio
  • Simple Node.js command to launch the server
  • Includes a video tutorial on YouTube
  • Provides test commands for Rust code

Use cases of Mcp Server Rust

  • Run Rust‑powered calculations from a Claude Desktop conversation
  • Demonstrate how to connect Rust code with an MCP client
  • Prototype custom MCP tools written in Rust
  • Learn the build‑and‑release workflow for Rust + MCP

Frequently asked questions

1

What dependencies are required?

Node.js, npm, the Rust toolchain (cargo, rustc), and wasm‑pack (used by the build scripts).

2

Where is the Claude Desktop configuration file located?

On macOS it is `~/Library/Application Support/Claude/claude_desktop_config.json`; on Windows it is `%APPDATA%\Claude\claude_desktop_config.json`.

3

How can I test the Rust code?

Run `npm run test:rust` or `cd src/lib/rust-functions-lib && cargo test && cargo fmt --all -- --check`.

4

What should I do if the Rust import fails?

The README shows a “Rust import failed” error and the solution is to run `npm run build:wasm:release` to rebuild the WebAssembly binding.

5

How is the MCP server started?

The server is launched by Node.js using the command “node [local path]/mcpserver/build/index.js”, as defined in the Claude Desktop configuration.

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