# Torque Index

> US truck engine reference: VIN lookup, part numbers, failures, recalls, repair costs, service specs.

- name: com.torqueindex/truck-reference
- version: 1.1.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 88/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.torqueindex%2Ftruck-reference
- tools: https://api.protogrid.dev/v1/servers/com.torqueindex%2Ftruck-reference/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "truck-reference": {
      "type": "http",
      "url": "https://torqueindex.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-7d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 88/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 10 of 10 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,121 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

### stability: 83 (weight 15)

- warn `stability.changes`: 6 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name
- pass `stability.new_links`: no tool change named a new site

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 10, about 1,121 tokens to load them all
- tool set hash: 886a34452ff9ed0cd58ff82452b3b404
- tools last changed: 2026-11-07T14:48:45.119Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.torqueindex/truck-reference.svg)](https://protogrid.dev/servers/com.torqueindex/truck-reference)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-11-07 `search` added
  - Find concept pages by words: engine hubs, failure modes, recipes, symptom pages, blog guides and reference hubs. For parts use find_part_number; for a specific truck use lookup_vin.
- 2026-11-07 `get_symptoms` added
  - Given what a truck does (hard start, power loss, white smoke, coolant loss, noise, DEF warnings ...), list the documented failure modes that show that sign, per engine. Lists documented causes; it does not diagnose a truck.
- 2026-11-07 `get_service_specs` added
  - Owner's-manual service cards for one engine platform, one card per manual year: oil capacity, grade and the maker's oil specification, oil/fuel/air filter numbers, coolant.
- 2026-11-07 `get_repair_cost` added
  - The parts budget of every documented failure we can price on one engine platform: band, low and high USD, whether the prices are exact (Dave's Auto Center retail). Parts only, no labor.
- 2026-11-07 `get_recalls` added
  - NHTSA safety recalls on record for one engine platform: campaign number, date, component, model years and the summary. Whether a recall is still OPEN on a specific VIN is not known here. The recalls page (get_page) also lists defect investigations and manufacturer bulletins.
- 2026-11-07 `get_failure_modes` added
  - Every documented failure mode of one engine platform: name, provenance tier, how common it is and the first symptom owners report. Open a failure's page (get_page) for root cause, diagnosis, fixes and parts. Use list_platforms for the platform ids.

Full history: https://api.protogrid.dev/v1/servers/com.torqueindex%2Ftruck-reference/changes

## Remotes

- https://torqueindex.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (10)

- `find_part_number`: Find which part a Ford, Mopar, GM or aftermarket part number is, which engine it fits and what it replaced or was replaced by. Dashes and spaces are ignored; at least 4 characters. Returns up to 25 parts.
- `get_failure_modes`: Every documented failure mode of one engine platform: name, provenance tier, how common it is and the first symptom owners report. Open a failure's page (get_page) for root cause, diagnosis, fixes and parts. Use list_platforms for the platform ids.
- `get_page`: Return the markdown version of a Torque Index page by its path, e.g. /platforms/cummins-6_7/, /failure-modes/<id>/, /parts/<id>/, /recalls/<platform>/, /repair-costs/, /blog/<slug>/. Use the URLs returned by the other tools.
- `get_recalls`: NHTSA safety recalls on record for one engine platform: campaign number, date, component, model years and the summary. Whether a recall is still OPEN on a specific VIN is not known here. The recalls page (get_page) also lists defect investigations and manufacturer bulletins.
- `get_repair_cost`: The parts budget of every documented failure we can price on one engine platform: band, low and high USD, whether the prices are exact (Dave's Auto Center retail). Parts only, no labor.
- `get_service_specs`: Owner's-manual service cards for one engine platform, one card per manual year: oil capacity, grade and the maker's oil specification, oil/fuel/air filter numbers, coolant.
- `get_symptoms`: Given what a truck does (hard start, power loss, white smoke, coolant loss, noise, DEF warnings ...), list the documented failure modes that show that sign, per engine. Lists documented causes; it does not diagnose a truck.
- `list_platforms`: List every engine platform Torque Index covers, with its page, recalls page and part count.
- `lookup_vin`: Decode a 17-character VIN (via NHTSA vPIC) and return the matching Torque Index engine platform, vehicle configuration pages and the recalls and bulletins that apply. Fitment is year x model x engine; cab and wheelbase are not modeled.
- `search`: Find concept pages by words: engine hubs, failure modes, recipes, symptom pages, blog guides and reference hubs. For parts use find_part_number; for a specific truck use lookup_vin.