# io.github.transparentpt/mcp (npm · transparentcars-mcp)

Budget used cars in Portugal: fair-price check, running-cost (IUC) estimate, stock search, contact.

- Trust score: 80/100 (high trust)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-22

## Components

- remote · `transparent.pt`: 73/100, [markdown](https://verifymcp.io/servers/transparentpt-mcp/transparent.md), [page](https://verifymcp.io/servers/transparentpt-mcp/transparent)
- npm · `transparentcars-mcp`: 80/100 (this document), [markdown](https://verifymcp.io/servers/transparentpt-mcp/transparentcars-mcp.md), [page](https://verifymcp.io/servers/transparentpt-mcp/transparentcars-mcp)

## Channel facts

- Registry: `npm`
- Package: `transparentcars-mcp`
- Version: `0.1.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-09-22.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 96 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 6 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1163 tokens (~193/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 87/100
  - Stability observed for 26 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**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "contact_me" implies "send" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - 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 io.github.transparentpt/mcp server?

io.github.transparentpt/mcp runs locally as an npm package, launched with npx -y transparentcars-mcp. 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 transparentpt-mcp -- npx -y transparentcars-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "transparentpt-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "transparentcars-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "transparentpt-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "transparentcars-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add transparentpt-mcp -- npx -y transparentcars-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "transparentpt-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "transparentcars-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add transparentpt-mcp --command npx --arg -y --arg transparentcars-mcp
```

### Hermes

```yaml
mcp_servers:
  transparentpt-mcp:
    command: "npx"
    args: ["-y", "transparentcars-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "transparentpt-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "transparentcars-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add transparentpt-mcp -t stdio -c npx -a -y transparentcars-mcp
```

### Other

```json
{
  "mcpServers": {
    "transparentpt-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "transparentcars-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-09-22 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-11 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

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

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-07 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (6)

### `search_inventory` (~309 tokens)

Search TransparentCars' current stock of budget used cars in Portugal — honestly listed, everyday cars for the local market. Filter by make, model, fuel, gearbox and max price. Returns matching cars with price, year, mileage and a link. IMPORTANT — pass make/model canonically in Latin, as the Portuguese market lists them: make = full brand name ('BMW', 'Mercedes-Benz' not 'Mercedes', 'Volkswagen' not 'VW'); model = the short series/model WITHOUT the engine or trim suffix ('Golf' not 'Golf 1.5 TSI', 'Clio' not 'Clio dCi'). Put the fuel in the fuel field, not the model. If unsure of the spelling, call list_makes_models first.

Input parameters:

- `fuel` (string): Fuel: petrol, diesel, hybrid, phev, electric, lpg
- `gearbox` (string): Gearbox: manual or automatic
- `limit` (integer): Max results (default 20)
- `make` (string): Full brand name in Latin, as the market lists it — 'Renault', 'Volkswagen' (not 'VW'), 'Peugeot', 'Seat'.
- `max_price` (number): Maximum price in EUR
- `min_year` (number): Earliest registration year
- `model` (string): Short model name WITHOUT engine or trim — 'Clio' (not 'Clio 1.5 dCi'), 'Golf' (not 'Golf TSI').

### `get_car` (~55 tokens)

Get full details for one car in TransparentCars stock by its slug (from a search_inventory link, e.g. 'renault-clio-2016').

Input parameters:

- `slug` (string, required): Car slug from a search_inventory result URL

### `check_fair_price` (~345 tokens)

Check whether a car's asking price is fair for the Portuguese market — the TransparentCars transparency check. Given make, model, year and mileage, it returns the range comparable cars actually sell for (low / typical / high), built from real listings. If you pass asking_price, it also gives a plain verdict: fair, above market, or below market — so a buyer knows before they walk in. Works for ANY car (a listing you found elsewhere, or one of ours). IMPORTANT — pass make/model canonically in Latin: make = full brand name ('Renault', 'Volkswagen' not 'VW'); model = short name WITHOUT engine/trim ('Clio' not 'Clio dCi', 'Golf' not 'Golf 1.5 TSI'). If unsure of spelling, call list_makes_models first.

Input parameters:

- `asking_price` (number): The price being asked for THIS car, in EUR — pass it to get a fair / above-market / below-market verdict.
- `fuel` (string): Fuel: petrol, diesel, hybrid, electric
- `gearbox` (string): Gearbox: manual or automatic
- `hp` (integer): Power in hp (sharpens the comparison)
- `km` (integer, required): Mileage in km
- `make` (string, required): Full brand name in Latin — 'Renault', 'Volkswagen' (not 'VW'), 'Peugeot', 'Seat'.
- `model` (string, required): Short model name WITHOUT engine or trim — 'Clio' (not 'Clio 1.5 dCi'), 'Golf' (not 'Golf TSI').
- `year` (integer, required): Registration year

### `cost_to_own` (~198 tokens)

Estimate a car's yearly running-cost floor in Portugal — the annual IUC road tax (Imposto Único de Circulação) every owner pays, plus a plain running-cost framing. Needs engine displacement (cc), CO₂ (g/km), fuel and first-registration year. Use this to help a buyer budget the true cost of keeping a car, beyond the sticker price.

Input parameters:

- `cc` (integer, required): Engine displacement in cm³, e.g. 1200
- `co2` (number, required): CO₂ emissions in g/km, e.g. 120
- `fuel` (string, required): Fuel: petrol, diesel, hybrid, phev, electric, lpg
- `month` (integer): First-registration month (1-12), refines the CO₂ regime
- `used` (boolean): Used vehicle (true, default)
- `year` (integer, required): First registration year, e.g. 2016

### `list_makes_models` (~117 tokens)

List the exact canonical car makes (brands) TransparentCars can search and price — or, given a make, that brand's models — using the exact strings the other tools expect. Call this FIRST (or whenever unsure of spelling) and pass the returned values verbatim into search_inventory / check_fair_price. No make = the list of brands; with a make = that brand's models.

Input parameters:

- `make` (string): Brand to list models for, e.g. 'Renault'. Omit to get the list of brands.

### `contact_me` (~139 tokens)

Send a contact request to TransparentCars so a human gets in touch. Only call this when the user explicitly asks to be contacted, provides their own name and a phone or email, AND agrees to share those details — pass consent=true only then. Submitting shares the provided contact details per the TransparentCars privacy policy.

Input parameters:

- `consent` (boolean, required): Set true ONLY if the user explicitly agreed to share their contact details and be contacted
- `contact` (string, required): A phone number or email where they can be reached
- `message` (string): What they want / their question
- `name` (string, required): The person's name (as they gave it)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/transparentpt-mcp/transparentcars-mcp#diagnostics

## Score history

- 2026-09-22: 80
- 2026-09-21: 79
- 2026-09-20: 79
- 2026-09-19: 78
- 2026-09-18: 78
- 2026-09-17: 77
- 2026-09-16: 77
- 2026-09-15: 76
- 2026-09-14: 76
- 2026-09-13: 75
- 2026-09-12: 75
- 2026-09-11: 75
- 2026-09-10: 74
- 2026-09-09: 74
- 2026-09-08: 73
- 2026-09-07: 73
- 2026-09-06: 72
- 2026-09-05: 72
- 2026-09-04: 71
- 2026-09-03: 71
- 2026-09-02: 68
- 2026-09-01: 68
- 2026-08-31: 68
- 2026-08-30: 68
- 2026-08-29: 68
- 2026-08-28: 68
- 2026-08-27: 53

## Common questions

### What is the io.github.transparentpt/mcp server?

io.github.transparentpt/mcp is listed in the public MCP registry as io.github.transparentpt/mcp. Budget used cars in Portugal: fair-price check, running-cost (IUC) estimate, stock search, contact. This page covers its npm package (transparentcars-mcp).

### Is the io.github.transparentpt/mcp server safe to use?

io.github.transparentpt/mcp scores 80 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 22 September 2026. It declares no install or post-install scripts. 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 io.github.transparentpt/mcp server expose?

io.github.transparentpt/mcp exposes 6 tools: search_inventory, get_car, check_fair_price, cost_to_own, list_makes_models, contact_me. Their descriptions and schemas cost roughly 1,163 tokens of context every time the server is loaded.

### Is the io.github.transparentpt/mcp server still maintained?

io.github.transparentpt/mcp is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.transparentpt/mcp server under?

io.github.transparentpt/mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/transparentcars-mcp
- Socket report: https://socket.dev/npm/package/transparentcars-mcp
- Repository: https://github.com/transparentpt/mcp
- Website: https://transparent.pt/
- Changelog RSS feed: https://verifymcp.io/servers/transparentpt-mcp/transparentcars-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/transparentpt-mcp/transparentcars-mcp.json
- HTML version of this page: https://verifymcp.io/servers/transparentpt-mcp/transparentcars-mcp
