Comprehensive Model Context Protocol server for managing Home Assistant through AI assistants.
DERATE — truck fault codes is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Heavy-duty truck SPN/FMI and OBD fault codes: meaning, safe-to-drive verdict, parts and recalls.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http derate-truck-fault-codes-mcp https://derate.app/mcp
# 2 — ask your agent for something these tools do
# buscar_codigo, es_seguro_manejar, retiros_de_camion and 10 more
DERATE — truck fault codes costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http derate-truck-fault-codes-mcp https://derate.app/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
13 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Search DERATE's 56-code heavy-truck library by SPN/FMI, P-code or free text. Returns severity, derates yes/no, meaning, part and estimated part-price range, and the page URL. / Busca en la biblioteca de códigos de DERATE.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | SPN/FMI, P-code or free text. |
| lang | string | no | Response language / Idioma: 'en' or 'es'. |
Safe-to-drive verdict (stop / service_soon / info) for a truck fault code, from DERATE's library only. Unknown codes return 'unknown'. / Veredicto de si es seguro seguir manejando.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| code | string | yes | e.g. 'SPN 3251 FMI 0', '3251/0', 'P20EE'. |
| lang | string | no | Response language / Idioma: 'en' or 'es'. |
How to check heavy-truck safety recalls (NHTSA-based), with per-make source links for Freightliner, Volvo, Kenworth, Peterbilt, International, Mack and Western Star. / Cómo revisar retiros de seguridad.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | no | Optional free text, e.g. a make. |
| make | string | no | Optional truck make, e.g. 'Volvo'. |
| limit | integer | no | Maximum items. |
| lang | string | no | Response language / Idioma: 'en' or 'es'. |
DERATE dataset notes: code count, sources, known gaps, license (CC BY 4.0), how to cite and download URLs. / Notas de calidad, licencia y cómo citar.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| lang | string | no | Response language / Idioma: 'en' or 'es'. |
Look up a diesel truck fault code (J1939 SPN/FMI such as 'SPN 3251 FMI 0', or an OBD-II code such as 'P2002') in DERATE's public fault-code library. Returns what the code means, its severity, whether it is safe to keep driving, probable causes, the recommended tests, and the canonical URL of the public page for that code. Works without any account.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| code | string | yes | The fault code, e.g. 'SPN 3251 FMI 0', '3251/0' or 'P2002'. |
| engine_family | string | no | Optional engine family for context, e.g. 'cummins', 'paccar-mx', 'detroit'. |
| lang | string | no | Response language: 'es' (Spanish) or 'en' (English). |
Explain a diesel truck engine derate or power-loss symptom described in plain language (for example 'DEF light on and truck limited to 55 mph'). Returns the most likely cause, how urgent it is, the immediate action to take, and matching public fault-code pages. This is the free public interpretation; the full guided diagnosis with tests and a work order runs in the DERATE app.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| symptom | string | yes | Free-text symptom, warning light or behavior the driver observes. |
| code | string | no | Optional fault code already known (SPN/FMI or OBD-II). |
| engine_family | string | no | Optional engine family, e.g. 'cummins'. |
| lang | string | no | Response language: 'es' (Spanish) or 'en' (English). |
Full-text search over DERATE's public diesel truck fault-code library by code, system, dashboard light or symptom words. Returns a list of matching entries with code, title, severity, system and the canonical public URL.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Code or free text to search for. |
| severity | string | no | Optional severity filter: RED stop now, YELLOW caution, WHITE info only. |
| limit | integer | no | Maximum results. |
| lang | string | no | Response language: 'es' (Spanish) or 'en' (English). |
List the diesel truck engine families and code protocols DERATE interprets (J1939 SPN/FMI and OBD-II), so an agent knows whether a given truck is covered before looking up a code.
No parameter schema on file.
List DERATE's plans and prices in USD. The app is a free download; plans are purchased inside the iOS/Android app (App Store / Google Play). Monthly Driver and Shop plans include a 7-day free trial for new subscribers.
No parameter schema on file.
Return the official App Store and Google Play links for the DERATE native app (iOS and Android). DERATE runs only as a mobile app.
No parameter schema on file.
Return the full DERATE demo diagnosis for a truck: verdict (STOP/CAUTION/CLEAR), derate countdown, every fault code and the work order summary.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| lang | string | no | Language of the diagnosis text: 'es' (Spanish) or 'en' (English). |
List the fault codes (SPN/FMI) in the current DERATE diagnosis with severity, system, fault type and whether they are a root cause.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| lang | string | no | Language of the labels: 'es' or 'en'. |
Explain a truck fault code or symptom in DERATE terms: plain-language meaning, severity, probable causes, recommended tests with expected values, repair steps and cost estimate.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Fault code (e.g. 'SPN 3251 FMI 0'), system name or symptom text to look up. |
| lang | string | no | Language of the explanation: 'es' or 'en'. |
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install DERATE — truck fault codes or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 2.0.0.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish DERATE — truck fault codes can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.