io.github.claracarspt/mcp
REMOTE · CLARACARS.PT · 2 COMPONENTS · SCANNED SEP 22
Used & imported cars in Portugal: search stock, ISV/IUC tax calc, resale value, contact.
Available components
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. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 11 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability65
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 2700 tokens (~245/item across 11 items; 11 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management88
- Stability check failed: schema churn in the 30 days we've observed: 0 tool removals, 2 breaking changes, 0 auth/transport breaks, 2 additions. See how to fix → Fail
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 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. See how to fix → Fail
- An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.claracarspt/mcp server?
io.github.claracarspt/mcp is a hosted endpoint at https://claracars.pt/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.
remote · claracars.pt
claude mcp add --transport http claracarspt-mcp 'https://claracars.pt/mcp'
{
"mcpServers": {
"claracarspt-mcp": {
"url": "https://claracars.pt/mcp"
}
}
} {
"servers": {
"claracarspt-mcp": {
"type": "http",
"url": "https://claracars.pt/mcp"
}
}
} [mcp_servers.claracarspt-mcp] url = "https://claracars.pt/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"claracarspt-mcp": {
"type": "remote",
"url": "https://claracars.pt/mcp",
"enabled": true
}
}
} openclaw mcp add claracarspt-mcp --url 'https://claracars.pt/mcp' --transport streamable-http
mcp_servers:
claracarspt-mcp:
url: "https://claracars.pt/mcp" {
"McpServers": {
"claracarspt-mcp": {
"Transport": "http",
"Url": "https://claracars.pt/mcp"
}
}
} assistant mcp add claracarspt-mcp -t streamable-http -u 'https://claracars.pt/mcp'
{
"mcpServers": {
"claracarspt-mcp": {
"type": "http",
"url": "https://claracars.pt/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 18 Sept 26 −1
- Stability: pass → fail ▼ security
- A breaking change shipped without a version bump: still 0.1.0 ▼ security
- The server changed its declared name: claracars → transparentcars security
- Tool “request_import_quote” rewrote its description, which is the text the model reads security
- Tool “list_services” rewrote its description, which is the text the model reads security
- Tool “list_makes_models” rewrote its description, which is the text the model reads security
- Tool “get_car” rewrote its description, which is the text the model reads security
- Tool “estimate_resale_value” rewrote its description, which is the text the model reads security
- Tool “contact_me” rewrote its description, which is the text the model reads security
- Tool “search_inventory” rewrote its description, which is the text the model reads security
- Schema quality: 2397 → 2700 ▼ functional
- “contact_me” added a required parameter “contact”, so existing callers break ▼ functional
- “request_import_quote” added a required parameter “contact”, so existing callers break ▼ functional
- The server now declares the “resources” capability functional
- The server now declares the “prompts” capability functional
- New tool “cost_to_own” functional
- New tool “check_fair_price” functional
- “search_inventory” added an optional parameter “gearbox” cosmetic
- “list_makes_models” reworded the description of “make” cosmetic
- “estimate_resale_value” reworded the description of “model” cosmetic
- “estimate_resale_value” reworded the description of “make” cosmetic
- “search_inventory” reworded the description of “model” cosmetic
- “search_inventory” reworded the description of “make” cosmetic
- “search_inventory” reworded the description of “fuel” cosmetic
- “contact_me” dropped the optional parameter “email” cosmetic
- “contact_me” dropped the optional parameter “phone” cosmetic
- “request_import_quote” dropped the optional parameter “phone” cosmetic
- “request_import_quote” dropped the optional parameter “email” cosmetic
- 10 Sept 26 0
- “calculate_iuc” reworded the description of “fuel” cosmetic
- “search_inventory” reworded the description of “fuel” cosmetic
- “calculate_isv” reworded the description of “fuel” cosmetic
3 cosmetic changes on this day. Switch on “Show cosmetic changes” to see them.
- 26 Aug 26 −1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 21 Aug 26 0
- “calculate_isv” added an optional parameter “from_eu” cosmetic
1 cosmetic change on this day. Switch on “Show cosmetic changes” to see it.
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 4 Aug 26 0
- Schema quality: 190 → 253 ▼ functional
- “calculate_isv” added an optional parameter “utilizacao” cosmetic
- “calculate_isv” added an optional parameter “axles” cosmetic
- “calculate_isv” added an optional parameter “config” cosmetic
- “calculate_isv” added an optional parameter “peso_bruto” cosmetic
- “calculate_isv” added an optional parameter “regiao_autonoma” cosmetic
- “calculate_isv” added an optional parameter “suspension” cosmetic
- “calculate_isv” added an optional parameter “tractor_axles” cosmetic
- “calculate_isv” added an optional parameter “trailer_axles” cosmetic
- “calculate_isv” added an optional parameter “vehicle_type” cosmetic
- “calculate_iuc” added an optional parameter “axles” cosmetic
- “calculate_iuc” added an optional parameter “config” cosmetic
- “calculate_iuc” added an optional parameter “peso_bruto” cosmetic
- “calculate_iuc” added an optional parameter “regiao_autonoma” cosmetic
- “calculate_iuc” added an optional parameter “suspension” cosmetic
- “calculate_iuc” added an optional parameter “tractor_axles” cosmetic
- “calculate_iuc” added an optional parameter “trailer_axles” cosmetic
- “calculate_iuc” added an optional parameter “utilizacao” cosmetic
- “calculate_iuc” added an optional parameter “vehicle_type” cosmetic
- “calculate_isv” reworded the description of “cc” cosmetic
- “calculate_isv” reworded the description of “co2” cosmetic
- “calculate_isv” reworded the description of “fuel” cosmetic
- “calculate_iuc” reworded the description of “cc” cosmetic
- “calculate_iuc” reworded the description of “co2” cosmetic
- “calculate_iuc” reworded the description of “fuel” cosmetic
- “calculate_isv” made “cc” optional cosmetic
- “calculate_isv” made “co2” optional cosmetic
- “calculate_isv” made “fuel” optional cosmetic
- “calculate_iuc” made “cc” optional cosmetic
- “calculate_iuc” made “co2” optional cosmetic
- “calculate_iuc” made “fuel” optional cosmetic
- 3 Aug 26 0
- Tool “calculate_iuc” rewrote its description, which is the text the model reads security
- Tool “calculate_isv” rewrote its description, which is the text the model reads security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 22 Sept 2026 · Probed https://claracars.pt/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=claracars.pt | CN=WE1,O=Google Trust Services,C=US | 11 Sept 2026 | 10 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | df363544d5ea01500e1fd4b3f503a1d8 |
| SANs: claracars.pt, *.claracars.pt | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of claracars.pt. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| pt. | present | 40155 | 13 | Verified |
| claracars.pt. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://claracars.pt/mcp | Verified | 200 | |
| http (plaintext) | http://claracars.pt/mcp | HTTPS enforced | 301 | https://claracars.pt/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
calculate_isv ~590
Estimate Portuguese car import tax (ISV, Imposto Sobre Veículos) from the official ISV formula (engine-cc + CO₂ components, with age reduction for used cars). A maintained estimate: it matches the AT (Finanças) simulator to the cent on the common WLTP cases, but is not the official figure and may differ on edge cases (NEDC, light-commercial, month rounding) — confirm the final amount on the official AT simulator. Needs engine displacement (cc), CO₂ (g/km, WLTP), fuel and registration year.
| Name | Type | Req | Description |
|---|---|---|---|
| axles | integer | – | Heavy rigid goods ≥12t: axles (2/3/4). |
| cc | integer | – | Engine displacement in cm³, e.g. 1950 (not needed for heavy goods/buses) |
| co2 | number | – | CO₂ emissions in g/km (WLTP), e.g. 130 (passenger/motorhome only) |
| config | string | – | Heavy goods ≥12t: rigido or articulado (tractor+trailer). |
| from_eu | boolean | – | Registered in an EU member state (true, default). Set FALSE for non-EU imports (Switzerland, UK, USA, Japan…) — non-EU used cars get NO age reduction, so the ISV is the FULL amount (plus customs duty… |
| fuel | string | – | Fuel: petrol, diesel, hybrid, hybrid_diesel (diesel MHEV/HEV), phev, electric (irrelevant for heavy goods/buses) |
| peso_bruto | integer | – | Gross weight (kg). REQUIRED for goods vehicles (van_10/commercial_*/pesados_mercadorias): their IUC is weight-based (Cat C/D). |
| regiao_autonoma | boolean | – | Used exclusively in Açores/Madeira → −50% IUC (Cat C/D). |
| suspension | string | – | Heavy goods ≥12t: driven-axle suspension. |
| tractor_axles | integer | – | Articulated ≥12t: tractor axles (2/3). |
| trailer_axles | integer | – | Articulated ≥12t: trailer axles (1/2/3). |
| used | boolean | – | Used vehicle (true, default) or new (false) |
| utilizacao | string | – | Goods use: particular (Cat C, default) or publico/rental (Cat D). |
| vehicle_type | string | – | Category (default passenger). Goods van → van_10/commercial_*; heavy goods >3500kg → pesados_mercadorias; bus → pesados_passageiros; motorhome → autocaravana; motorcycle → motorcycle. |
| year | integer | yes | First registration year, e.g. 2016 |
No output schema declared.
No examples provided.
calculate_iuc ~444
Estimate the Portuguese annual road tax (IUC, Imposto Único de Circulação) for a car — the yearly tax an owner pays — from the official IUC table. A maintained estimate; confirm on the official AT simulator. Needs engine displacement (cc), CO₂ (g/km), fuel and registration year.
| Name | Type | Req | Description |
|---|---|---|---|
| axles | integer | – | Heavy rigid goods ≥12t: axles (2/3/4). |
| cc | integer | – | Engine displacement in cm³, e.g. 1950 (not needed for goods vehicles) |
| co2 | number | – | CO₂ emissions in g/km, e.g. 130 (passenger/motorhome only) |
| config | string | – | Heavy goods ≥12t: rigido or articulado (tractor+trailer). |
| fuel | string | – | Fuel: petrol, diesel, hybrid, hybrid_diesel (diesel MHEV/HEV), phev, electric (irrelevant for heavy goods/buses) |
| peso_bruto | integer | – | Gross weight (kg). REQUIRED for goods vehicles (van_10/commercial_*/pesados_mercadorias): their IUC is weight-based (Cat C/D). |
| regiao_autonoma | boolean | – | Used exclusively in Açores/Madeira → −50% IUC (Cat C/D). |
| suspension | string | – | Heavy goods ≥12t: driven-axle suspension. |
| tractor_axles | integer | – | Articulated ≥12t: tractor axles (2/3). |
| trailer_axles | integer | – | Articulated ≥12t: trailer axles (1/2/3). |
| utilizacao | string | – | Goods use: particular (Cat C, default) or publico/rental (Cat D). |
| vehicle_type | string | – | Category (default passenger). Goods van → van_10/commercial_*; heavy goods >3500kg → pesados_mercadorias; bus → pesados_passageiros; motorhome → autocaravana; motorcycle → motorcycle. |
| year | integer | yes | First registration year, e.g. 2016 |
No output schema declared.
No examples provided.
check_fair_price ~345
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | Mileage in km |
| make | string | yes | Full brand name in Latin — 'Renault', 'Volkswagen' (not 'VW'), 'Peugeot', 'Seat'. |
| model | string | yes | Short model name WITHOUT engine or trim — 'Clio' (not 'Clio 1.5 dCi'), 'Golf' (not 'Golf TSI'). |
| year | integer | yes | Registration year |
No output schema declared.
No examples provided.
contact_me ~139
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.
| Name | Type | Req | Description |
|---|---|---|---|
| consent | boolean | yes | Set true ONLY if the user explicitly agreed to share their contact details and be contacted |
| contact | string | yes | A phone number or email where they can be reached |
| message | string | – | What they want / their question |
| name | string | yes | The person's name (as they gave it) |
No output schema declared.
No examples provided.
cost_to_own ~198
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.
| Name | Type | Req | Description |
|---|---|---|---|
| cc | integer | yes | Engine displacement in cm³, e.g. 1200 |
| co2 | number | yes | CO₂ emissions in g/km, e.g. 120 |
| fuel | string | yes | 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 | yes | First registration year, e.g. 2016 |
No output schema declared.
No examples provided.
estimate_resale_value ~302
Estimate what a car is worth on the Portuguese market (the range comparable cars are listed for), based on real comparable listings. Needs make, model, year, mileage and fuel. TransparentCars also BUYS cars directly — after giving the estimate, offer to connect the user for a firm buy-out offer (via contact_me or the /sell page). 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 (BMW: '320','330' not '320d'; Mercedes: 'C 220','A 250' not 'C220d'; others: 'Golf','Corolla','3008'). If unsure of the spelling, call list_makes_models first.
| Name | Type | Req | Description |
|---|---|---|---|
| fuel | string | – | Fuel: petrol, diesel, hybrid, electric |
| km | integer | yes | Mileage in km |
| make | string | yes | Full brand name in Latin, e.g. 'BMW', 'Mercedes-Benz', 'Volkswagen', 'Peugeot'. |
| model | string | yes | Short model/series WITHOUT engine or trim. BMW: '320','330','116'. Mercedes: 'C 220','E 220','A 250'. Others: 'Golf','Corolla','3008'. |
| year | integer | yes | Registration year |
No output schema declared.
No examples provided.
get_car ~55
Get full details for one car in TransparentCars stock by its slug (from a search_inventory link, e.g. 'renault-clio-2016').
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Car slug from a search_inventory result URL |
No output schema declared.
No examples provided.
list_makes_models ~117
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.
| Name | Type | Req | Description |
|---|---|---|---|
| make | string | – | Brand to list models for, e.g. 'Renault'. Omit to get the list of brands. |
No output schema declared.
No examples provided.
list_services ~41
List what TransparentCars offers (buying stock cars, importing to order, sourcing, auction buying, selling/trading in your car, ISV/IUC calculators).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
request_import_quote ~160
Ask TransparentCars to source & quote a specific car to import (from German/EU auctions). Only call when the user wants an import quote, provides the wanted model plus their own name and a phone or email, AND agrees to be contacted — pass consent=true only then. Submitting shares the provided contact details per the TransparentCars privacy policy.
| Name | Type | Req | Description |
|---|---|---|---|
| budget | number | – | Budget in EUR |
| consent | boolean | yes | Set true ONLY if the user explicitly agreed to share their contact details and be contacted |
| contact | string | yes | A phone number or email where they can be reached |
| model | string | yes | Wanted car, e.g. 'BMW 320d Touring 2021' |
| name | string | yes | The person's name |
No output schema declared.
No examples provided.
search_inventory ~309
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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'). |
No output schema declared.
No examples provided.
What is the io.github.claracarspt/mcp server?
io.github.claracarspt/mcp is listed in the public MCP registry as io.github.claracarspt/mcp. Used & imported cars in Portugal: search stock, ISV/IUC tax calc, resale value, contact. This page covers its hosted endpoint (https://claracars.pt/mcp).
Is the io.github.claracarspt/mcp server safe to use?
io.github.claracarspt/mcp scores 76 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 io.github.claracarspt/mcp server expose?
io.github.claracarspt/mcp exposes 11 tools: search_inventory, get_car, check_fair_price, cost_to_own, list_makes_models, and 6 more. Their descriptions and schemas cost roughly 2,700 tokens of context every time the server is loaded.
Does the io.github.claracarspt/mcp server require authentication?
No. We connected to io.github.claracarspt/mcp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the io.github.claracarspt/mcp server still maintained?
io.github.claracarspt/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.