# Derate MCP server

Source: https://glimind.com/server/mcp-registry%2Fapp.derate%2Fderate
Registry id: `mcp-registry/app.derate/derate`
Status: live (checked 2026-10-27T02:40:23.371Z)

## Verdict

Derate MCP server answered 100% of Glimind's liveness checks over 30 days, better than 42% of MCP servers, with 1428 ms median handshake and 0 outages in 90 days. Its agent-readiness grade is A (96/100) across 15 tools, costing an agent about 2,354 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 100% | 42% of MCP servers |
| Median handshake latency | 1428 ms | 10% of MCP servers |
| p95 handshake latency | 4011 ms | — |
| Checks in 30 days | 3,223 | — |
| Outages, 90 days | 0 | — |
| Median recovery | — | — |
| Agent-readiness score | 96/100 (A) | 82% of MCP servers |
| Tools | 15 | — |
| Tool-list size for an agent | ~2,354 tokens | 50% of MCP servers |
| Days observed | 16 | — |

## Install

```json
{
  "mcpServers": {
    "derate-mcp-server": {
      "type": "http",
      "url": "https://derate.app/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http derate-mcp-server https://derate.app/mcp
```

## Tools (15)

- `buscar_codigo`: 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
- `es_seguro_manejar`: 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 segu
- `explain_fault_code`: Explain a truck fault code or symptom in DERATE terms: plain-language meaning, severity, probable causes, recommended tests with expected values, repair steps a
- `get_data_notes`: 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.
- `get_diagnosis`: Return the full DERATE demo diagnosis for a truck: verdict (STOP/CAUTION/CLEAR), derate countdown, every fault code and the work order summary.
- `get_download_links`: Return the official App Store and Google Play links for the DERATE native app (iOS and Android). DERATE runs only as a mobile app.
- `get_guide`: Full text (markdown) of one DERATE guide or news article by slug, with sources and the derate.app URL to cite. / Texto completo de una guía o noticia.
- `get_pricing`: 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 
- `get_truck_fault_code`: 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 wha
- `interpret_derate`: 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 mos
- `list_fault_codes`: List the fault codes (SPN/FMI) in the current DERATE diagnosis with severity, system, fault type and whether they are a root cause.
- `list_supported_engine_families`: 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
- `retiros_de_camion`: How to check heavy-truck safety recalls (NHTSA-based), with per-make source links for Freightliner, Volvo, Kenworth, Peterbilt, International, Mack and Western 
- `search_fault_code_library`: 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
- `search_guides`: Search DERATE's truck-driver guides and trucking news (derate, DEF, emissions, recalls, enforcement, market). Returns title, quick answer and derate.app URL. / 

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.