UDS Toolbox

What UDS Toolbox MCP server does

UDS Toolbox MCP server is intended for diagnosing failures in UDS flashing sessions from recorded or supplied CAN trace data. Its documented analysis scope includes three related areas: UDS messages, ISO-TP transport, and diagnostic trouble codes (DTCs). Together, these capabilities support tracing a failed diagnostic exchange and examining the associated fault information.

The tool is aimed at software-based investigation. The supplied description explicitly says that hardware is not required, so it fits workflows where an engineer has a CAN trace but does not have access to the vehicle, ECU, or CAN interface used during the original session.

How it works

The repository contains the web-facing UDSLib site and an mcp-worker/ directory. That worker is the backend for the UDS toolbox MCP server and runs on Cloudflare Workers. The repository’s site is implemented as static hand-written HTML with one stylesheet and one JavaScript file; it does not use a build step.

At a functional level, the UDS Toolbox MCP server receives or works from CAN trace information and applies protocol decoding to the relevant UDS and ISO-TP exchanges. It also decodes DTC data. The provided material does not specify the request schema, response format, transport endpoint, authentication model, or individual MCP tool names, so those details should be confirmed in the repository before integration.

Setup and configuration

The repository documents two commands for working with the site itself. Run python3 scripts/check_site.py to check links and page structure. To preview the static site locally, run python3 -m http.server 8099 from the appropriate site directory.

These commands describe site validation and preview rather than deployment of the MCP backend. The available material identifies the Cloudflare Worker location but does not provide deployment commands, required credentials, configuration variables, or a client configuration example. Consequently, the UDS Toolbox MCP server may require additional setup instructions from the repository’s worker code or documentation.

Tools and capabilities

The documented capabilities are:

• Analyze a CAN trace related to a failed UDS flash.
• Decode UDS protocol traffic.
• Decode ISO-TP transport-layer exchanges.
• Decode diagnostic trouble codes.
• Perform the analysis without hardware.

The UDS Toolbox MCP server is therefore most relevant when the input is a trace or captured diagnostic exchange. The excerpt does not establish support for live CAN capture, ECU control, flash programming, trace recording, or hardware adapters.

Limitations and notes

No hardware is needed for the stated analysis use case, but the available material does not explain which trace formats are accepted or how traces are submitted. It also does not document whether the server can initiate diagnostic requests or modify vehicle state. Treat it as a trace-decoding and failure-investigation tool unless the implementation documents broader behavior.

Client compatibility is not listed in the provided README excerpt. Likewise, no license, environment variables, release process, or hosted MCP endpoint is identified. Review the mcp-worker/ implementation and any additional project documentation before planning production use.