Hwcontract

Overview

Hwcontract is an MCP server that validates hardware timing and serial data against predefined contracts, returning pass, marginal, or fail verdicts. It works with WS2812 LEDs, DShot protocols, and log files, making it useful for embedded systems development and hardware verification workflows. By exposing these checks as MCP tools, it lets AI assistants help you evaluate hardware behavior directly.

The server runs locally on your machine via the Python package hwcontract, installed with uvx hwcontract. It communicates over stdio and requires no credentials or external services to operate. Hwcontract is released under the MIT license at version v0.4.2, with source code available at MohibShaikh/hwcontract on GitHub.

Hwcontract is listed in the Version Control category on mcp.site and works with any MCP client, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this project, claim the listing to verify ownership and keep the information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "hwcontract": {
      "command": "uvx",
      "args": [
        "hwcontract"
      ]
    }
  }
}