# Trail Fortress Fitment (remote · trailfortress.com)

Free, read-only truck and Jeep parts fitment: what fits your vehicle, fit checks, tire sizes.

- Trust score: 71/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-28

## Components

- remote · `trailfortress.com`: 71/100 (this document), [markdown](https://verifymcp.io/servers/com-trailfortress-fitment/trailfortress.md), [page](https://verifymcp.io/servers/com-trailfortress-fitment/trailfortress)

## Channel facts

- Endpoint: `https://trailfortress.com/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 2026-09-28.

- **Endpoint Security**: 80/100
  - 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.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 70/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 386 tokens (~64/item across 6 items; 6 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 3/100
  - Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 74/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 22% 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 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Trail Fortress Fitment MCP server?

Trail Fortress Fitment is a hosted endpoint at https://trailfortress.com/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-trailfortress-fitment 'https://trailfortress.com/mcp/'
```

### Cursor

```json
{
  "mcpServers": {
    "com-trailfortress-fitment": {
      "url": "https://trailfortress.com/mcp/"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-trailfortress-fitment": {
      "type": "http",
      "url": "https://trailfortress.com/mcp/"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-trailfortress-fitment]
url = "https://trailfortress.com/mcp/"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-trailfortress-fitment": {
      "type": "remote",
      "url": "https://trailfortress.com/mcp/",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-trailfortress-fitment --url 'https://trailfortress.com/mcp/' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-trailfortress-fitment:
    url: "https://trailfortress.com/mcp/"
```

### Netclaw

```json
{
  "McpServers": {
    "com-trailfortress-fitment": {
      "Transport": "http",
      "Url": "https://trailfortress.com/mcp/"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-trailfortress-fitment -t streamable-http -u 'https://trailfortress.com/mcp/'
```

### Other

```json
{
  "mcpServers": {
    "com-trailfortress-fitment": {
      "type": "http",
      "url": "https://trailfortress.com/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.

### 2026-09-28 (score 71, +7)

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

### 2026-09-27 (score 64)

First indexed and scored.

## MCP tools (6)

### `list_vehicle_options` (~79 tokens)

List vehicle years, makes, and models

Returns valid years, makes, and models in the Trail Fortress catalogue. Use this before guessing model spelling (Wrangler JK, 1500, F-150, and so on).

Input parameters:

- `make` (string): Optional make to narrow models, for example Ford or Jeep.
- `year` (integer): Optional model year to narrow makes and models.

### `find_parts_for_vehicle` (~80 tokens)

Find parts for a truck

Returns a fitment-checked listing URL and in-stock parts with listable prices only. Manufacturer exclusions are on each product page.

Input parameters:

- `category` (string): Optional category slug, for example lift-kits.
- `limit` (integer)
- `make` (string, required)
- `model` (string, required)
- `year` (integer, required)

### `check_part_fit` (~62 tokens)

Check part fit for a truck

Returns fits, does_not_fit, or unknown using manufacturer application data. Never guesses when data is missing.

Input parameters:

- `make` (string, required)
- `model` (string, required)
- `product_url_or_sku` (string, required)
- `year` (integer, required)

### `get_product` (~51 tokens)

Get product details

Returns title, brand, part number, listable price (MAP for Rough Country), availability, key facts, and manufacturer exclusions. No cost or trade pricing.

Input parameters:

- `product_url_or_sku` (string, required)

### `search_parts` (~37 tokens)

Search the catalogue

Full-text and part-number search over listed products with listable prices only.

Input parameters:

- `limit` (integer)
- `query` (string, required)

### `tire_fitment` (~77 tokens)

Tire and wheel fitment for a truck

Returns verified tire sizes, stated max tire claims, lift-only notes, and matching wheels from manufacturer strings already in the catalogue.

Input parameters:

- `make` (string, required)
- `model` (string, required)
- `tire` (string): Optional tire size token, for example 33x12.50R20.
- `year` (integer, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-trailfortress-fitment/trailfortress#diagnostics

## Score history

- 2026-09-28: 71
- 2026-09-27: 64

## Common questions

### What is the Trail Fortress Fitment MCP server?

Trail Fortress Fitment is an MCP server listed in the public MCP registry as com.trailfortress/fitment. Free, read-only truck and Jeep parts fitment: what fits your vehicle, fit checks, tire sizes. This page covers its hosted endpoint (https://trailfortress.com/mcp/).

### Is the Trail Fortress Fitment MCP server safe to use?

Trail Fortress Fitment scores 71 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 Trail Fortress Fitment MCP server expose?

Trail Fortress Fitment exposes 6 tools: list_vehicle_options, find_parts_for_vehicle, check_part_fit, get_product, search_parts, tire_fitment. Their descriptions and schemas cost roughly 386 tokens of context every time the server is loaded.

### Does the Trail Fortress Fitment MCP server require authentication?

No. We connected to Trail Fortress Fitment without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Trail Fortress Fitment MCP server still maintained?

Trail Fortress Fitment is still listed as active in the MCP registry. We last reached this channel on 28 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://trailfortress.com/mcp/
- Website: https://trailfortress.com/ai/
- Changelog RSS feed: https://verifymcp.io/servers/com-trailfortress-fitment/trailfortress.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-trailfortress-fitment/trailfortress.json
- HTML version of this page: https://verifymcp.io/servers/com-trailfortress-fitment/trailfortress