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Directory / Porsche Service Calculator (Garage Kuhn)

Porsche Service Calculator (Garage Kuhn)

Q: Is Porsche Service Calculator (Garage Kuhn) MCP server safe?

QAmcp's test on 1 Nov 2026: None of the hidden-instruction wordings we know were found in its tool descriptions. Its error messages showed no secrets or internal details. 6 of its 8 tools are labeled read-only; the others may change or send things. Overall it scored 91/100 on 1 Nov 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by servicekuhn.ch · https://servicekuhn.ch/wp-json/kuhn-sr/v1/mcp

Porsche service plans, workshop appointments and quotes at Garage Kuhn, Porsche specialist.

8 tools✓ no account neededPricing: not listed

Visit website

91 /100

PASS · WITH NOTES

12 of 12 checks · 1 Nov 2026

Is Porsche Service Calculator (Garage Kuhn) MCP server safe?

None of the hidden-instruction wordings we know were found in its tool descriptions.
Its error messages showed no secrets or internal details.
6 of its 8 tools are labeled read-only; the others may change or send things.
Overall it scored 91/100 on 1 Nov 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What it can do

8 tools, in the server's own words.

porsche_wartungsplaeneread-only

Listet die Porsche-Wartungspläne, mit denen der Service-Rechner der Garage Kuhn AG rechnet: Plan-ID, Baureihen, Zeitraum, Herausgeber (Porsche Schweiz oder Deu…

porsche_service_berechnenread-only

Berechnet für einen Porsche, welcher Service als Nächstes fällig ist (wann, bei wie vielen km), den Grundumfang und die dann fälligen Zusatzwartungen im Wortla…

porsche_service_erinnerungread-only

Liefert eine Service-Erinnerung für einen Porsche: Datum (vier Wochen vor dem nächsten Service nach Porsche-Plan, spätestens nach einem Jahr für den Jahresserv…

searchread-only

Sucht Porsche-Wartungspläne der Garage Kuhn nach Modell oder Baureihe (z.

fetchread-only

Ruft einen Treffer aus search ab: den ganzen Porsche-Wartungsplan (alle Arbeiten je Service und Zusatzwartung, Wortlaut Porsche mit Seitenzahl, Quelle) oder ei…

termin_freie_zeitenread-only

Liefert die freien Termine (30 Minuten Annahme) in der Werkstatt der Garage Kuhn AG in Thalwil, Porsche-Spezialist seit 1955, Service auch für VW, Audi, Skoda …

termin_buchen

Reserviert einen freien Werkstatttermin bei der Garage Kuhn AG in Thalwil (Porsche-Spezialist, auch VW, Audi, Skoda und weitere Marken) für Service, Diagnose, …

offerte_anfragen

Legt bei der Garage Kuhn AG in Thalwil (Porsche-Spezialist, auch weitere Marken) eine Offerten-Anfrage an für: Unfallschaden, Lackierung, Einbruchschaden, Absc…

Test results

Safe mode: only tools labeled read-only were run. How the test works

!
Tools work with good inputs
1 warning
- !search: Answered, but it gives the exact same answer to bad input as to good input, so it may be ignoring what it is sent
- –termin_buchen: Not run: labeled as changing data
- –offerte_anfragen: Not run: labeled as changing data
- and 5 more
note
!
Bad inputs give a clean error
3 warnings
- !search: Accepted missing required input "query" without complaining
- !search: Accepted wrong type for "query" without complaining
- !termin_freie_zeiten: Accepted wrong type for "von" without complaining
- and 7 more
note
!
Follows MCP best practices (not scored yet)
1 tip (not scored)
- !Very common tool names: search, fetch. Next to other servers' tools the AI may mix them up; a short prefix helps (like "github_search" instead of "search").
note
✓
ConnectsConnected in 932 ms
pass
✓
Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
pass
✓
Lists its toolsFound 8 tools
pass
✓
Every tool is describedAll 8 tools and their inputs are described
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Tools work together
2 chains working
- ✓search → fetch: fetch found what search returned (id = "de-cayenne-2002")
- ✓porsche_wartungsplaene → fetch: fetch found what porsche_wartungsplaene returned (id = "de-cayenne-2002")
pass
✓
Fast enough
All good
- ✓Connecting took 932 ms
- ✓Listing tools took 603 ms
- ✓Average tool answer: 502 ms
- ✓termin_freie_zeiten: Slowest tool: termin_freie_zeiten (727 ms)
pass
✓
No secrets leakedChecked 12 error messages: no secrets or internal details
pass

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://servicekuhn.ch/wp-json/kuhn-sr/v1/mcp

Show this score on GitHub

Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.

[![QAmcp score](https://qamcp.dev/s/ch-servicekuhn-service-rechner.svg)](https://qamcp.dev/s/ch-servicekuhn-service-rechner.html)

Score over time

1 Nov 202691

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Porsche Service Calculator (Garage Kuhn), signed in with GitHub, one per person. Reviews never change the score.

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