Derate
Heavy-duty truck SPN/FMI and OBD fault codes: meaning, safe-to-drive verdict, parts and recalls.
- Transport
- Not stated
- Package
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- Registry id
- app.derate/derate
No install snippet on purpose. A working MCP config is a command, its arguments and an environment block — the last two are where API keys live, so this catalogue never stores them and cannot publish them. Follow the link above for the authors' own instructions.
DERATE reads SPN/FMI codes by snapping a photo of the dashboard or scanner. The app informs the user what the fault code is, how urgent it is, and what it will cost. DERATE is designed for truck drivers, operators, and owner-operators.
DERATE offers a free download, a one-time $19.99 rescue diagnosis, or a monthly plan with a 7-day free trial. It supports heavy-duty trucks from Freightliner, Kenworth, Peterbilt, International, Volvo, and Mack, with Cummins, Detroit, and PACCAR engines. DERATE provides a free fault code library explaining the meaning, likely cause, and confirming test for each diesel truck SPN/FMI code.
The app offers a public MCP server for AI agents and developers, accessible via JSON-RPC over POST without authentication.
Summary drafted from the project's own website. Every sentence is backed by text on that page and was reviewed before publishing.