# WhichTrim vehicle records (remote · whichtrim.com)

US vehicle recalls, complaints, EPA figures, VIN decode and trouble codes, with sources.

- Trust score: 74/100 (medium)
- Change this week: +10
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-26

## Components

- remote · `whichtrim.com`: 74/100 (this document), [markdown](https://verifymcp.io/servers/com-whichtrim-vehicle-records/portal-mcp.md), [page](https://verifymcp.io/servers/com-whichtrim-vehicle-records/portal-mcp)

## Channel facts

- Endpoint: `https://whichtrim.com/portal/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-26.

- **Endpoint Security**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 73/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 925 tokens (~132/item across 7 items; 7 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 37/100
  - Stability observed for 11 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the WhichTrim vehicle records MCP server?

WhichTrim vehicle records is a hosted endpoint at https://whichtrim.com/portal/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-whichtrim-vehicle-records 'https://whichtrim.com/portal/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-whichtrim-vehicle-records": {
      "url": "https://whichtrim.com/portal/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-whichtrim-vehicle-records": {
      "type": "http",
      "url": "https://whichtrim.com/portal/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-whichtrim-vehicle-records]
url = "https://whichtrim.com/portal/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-whichtrim-vehicle-records": {
      "type": "remote",
      "url": "https://whichtrim.com/portal/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-whichtrim-vehicle-records --url 'https://whichtrim.com/portal/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-whichtrim-vehicle-records:
    url: "https://whichtrim.com/portal/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-whichtrim-vehicle-records": {
      "Transport": "http",
      "Url": "https://whichtrim.com/portal/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-whichtrim-vehicle-records -t streamable-http -u 'https://whichtrim.com/portal/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-whichtrim-vehicle-records": {
      "type": "http",
      "url": "https://whichtrim.com/portal/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-25 (score 74, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-23 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-21 (score 72, +7)

- [security improvement] Authorization: unverified → partial
- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: pass → fail
- [functional] Schema quality: good → excellent
- [functional] Server version: 1.0.0 → 1.1.1
- [functional] New tool “lookup_bulletin”
- [cosmetic] “compare_vehicles” reworded the description of “a”
- [cosmetic] “compare_vehicles” reworded the description of “b”

### 2026-09-20 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 63, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-15 (score 62)

First indexed and scored.

## MCP tools (7)

### `search_vehicles` (~109 tokens)

Find model years in the WhichTrim catalogue by make, model and/or year. Returns each match with its Safety Signal grade, recall count and page URL. Use this first to get the vehicle id that the other tools take.

Input parameters:

- `limit` (integer): Maximum results (default 10, max 40).
- `query` (string, required): Make and/or model, e.g. 'kia telluride' or 'rav4'.
- `year` (integer): Restrict to one model year.

### `get_vehicle` (~87 tokens)

The full published record for one model year: EPA fuel economy, NHTSA recalls, owner-complaint counts and the mileage at which owners reported problems, crash ratings, open investigations, service bulletins and the diagnostic trouble codes its record names.

Input parameters:

- `id` (string, required): Vehicle id, e.g. 2021_kia_telluride. Get one from search_vehicles.

### `check_recalls` (~102 tokens)

Every NHTSA recall campaign on file for one model year, with severity, park-outside and do-not-drive advisories and the reported completion rate. IMPORTANT: recalls apply to a build range, not to a model year, so this cannot establish whether one specific vehicle is affected — only a VIN check at nhtsa.gov/recalls can.

Input parameters:

- `id` (string, required): Vehicle id, e.g. 2021_kia_telluride.

### `decode_vin` (~67 tokens)

Decode a 17-character VIN against NHTSA's vPIC database and join it to the WhichTrim record for that model year: year, make, model, engine, plant, plus the grade and recall campaigns on file.

Input parameters:

- `vin` (string, required): A 17-character VIN.

### `lookup_trouble_code` (~89 tokens)

What a diagnostic trouble code (P0420, U0100, …) means where the OBD-II standard defines it, and — the part no other source publishes — which vehicles' federal record actually names it: how many manufacturer service bulletins and owner complaints mention it, and on which model years.

Input parameters:

- `code` (string, required): A trouble code, e.g. P0420.

### `lookup_bulletin` (~195 tokens)

A manufacturer service bulletin, service campaign, warranty extension or over-the-air notice by the number on the letter or the document (Hyundai 9D6, Kia SC199, '26-01-068H TSB', GM N262570770). Returns what NHTSA's summary says, the model years it names, every document filed under it with a verified link to NHTSA's PDF where one exists, and the page URL. These are NOT safety recalls — the answer says so.

Input parameters:

- `make` (string): The make, if known (hyundai, chevrolet). A number filed under several makes returns each without it.
- `number` (string, required): The number as printed: a campaign id (9D6, SC199) or a bulletin/document number (26-01-068H, T-SB-0141-26, 00-03-10-002J).

### `compare_vehicles` (~123 tokens)

Two model years side by side on the figures that decide most purchases: fuel economy or EV range, Safety Signal grade, recalls, complaints, crash rating and starting price where a press kit is on file.

Input parameters:

- `a` (string, required): Vehicle id for the first car, e.g. 2021_kia_telluride. Get one from search_vehicles.
- `b` (string, required): Vehicle id for the second car, e.g. 2021_honda_pilot. Get one from search_vehicles. Must be a different id from `a`.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-whichtrim-vehicle-records/portal-mcp#diagnostics

## Score history

- 2026-09-26: 74
- 2026-09-25: 74
- 2026-09-24: 73
- 2026-09-23: 73
- 2026-09-22: 72
- 2026-09-21: 72
- 2026-09-20: 65
- 2026-09-19: 64
- 2026-09-18: 64
- 2026-09-17: 63
- 2026-09-16: 63
- 2026-09-15: 62

## Common questions

### What is the WhichTrim vehicle records MCP server?

WhichTrim vehicle records is an MCP server listed in the public MCP registry as com.whichtrim/vehicle-records. US vehicle recalls, complaints, EPA figures, VIN decode and trouble codes, with sources. This page covers its hosted endpoint (https://whichtrim.com/portal/mcp).

### Is the WhichTrim vehicle records MCP server safe to use?

WhichTrim vehicle records scores 74 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the WhichTrim vehicle records MCP server expose?

WhichTrim vehicle records exposes 7 tools: search_vehicles, get_vehicle, check_recalls, decode_vin, lookup_trouble_code, and 2 more. Their descriptions and schemas cost roughly 772 tokens of context every time the server is loaded.

### Does the WhichTrim vehicle records MCP server require authentication?

No. We connected to WhichTrim vehicle records without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the WhichTrim vehicle records MCP server still maintained?

WhichTrim vehicle records is still listed as active in the MCP registry. We last reached this channel on 26 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://whichtrim.com/portal/mcp
- Website: https://whichtrim.com/developers/
- Changelog RSS feed: https://verifymcp.io/servers/com-whichtrim-vehicle-records/portal-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-whichtrim-vehicle-records/portal-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-whichtrim-vehicle-records/portal-mcp