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Directory / Doorfarer

Doorfarer

Q: Is Doorfarer MCP server safe?

QAmcp's test on 30 Oct 2026: No hidden instructions were found in its tool descriptions. Its error messages showed no secrets or internal details. 3 of its 4 tools are labeled read-only; the others may change or send things. Overall it scored 95/100 on 30 Oct 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 doorfarer.com · https://doorfarer.com/mcp

Door-to-door trips: every airport within reach of your home, with the train or bus there.

4 tools✓ no account neededPricing: not listed

Visit website

95 /100

PASS · WITH NOTES

12 of 12 checks · 30 Oct 2026

Is Doorfarer MCP server safe?

No hidden instructions were found in its tool descriptions.
Its error messages showed no secrets or internal details.
3 of its 4 tools are labeled read-only; the others may change or send things.
Overall it scored 95/100 on 30 Oct 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

4 tools, in the server's own words.

find_tripsread-only

Finds the best round trips from where someone lives, not just from one airport: it adds the train or bus to every airport they can reach and ranks all options …

price_calendarread-only

Shows the cheapest month to travel from someone's home town to a place, for each airport within reach: what fares on each route usually cost per month (from th…

trip_detailsread-only

Shows one trip from a find_trips answer step by step, door to door: leaving home, the train or bus to the airport, the airport wait, the flight, the transfer i…

send_feedback

Tell Doorfarer's maker where Doorfarer fell short, so it can be fixed.

Test results

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

!
Resources and prompts work
2 warnings (1 resource, 2 prompts)
- !plan_trip_from_home: Leaving out a required input gets an internal error instead of an "invalid input" error: Internal server error
- !cheapest_month: Leaving out a required input gets an internal error instead of an "invalid input" error: Internal server error
- and 3 more
note
✓
ConnectsConnected in 768 ms
pass
✓
Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
pass
✓
Lists its toolsFound 4 tools
pass
✓
Every tool is describedAll 4 tools and their inputs are described
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No hidden instructionsNo hidden instructions found in tool descriptions
pass
✓
Tools work with good inputs
All good
- ✓find_trips: Answered with an error, probably because of our sample input: destinations: name at least one place to fly to.
- ✓price_calendar: Answered with an error, probably because of our sample input: We couldn't find a town called test. Try the spelling on a map, or add the country.
- ✓trip_details: Answered with an error, probably because of our sample input: trip_id looks like "t_" and eight letters or digits, as in the find_trips answer.
- –send_feedback: Not run: labeled as changing data
pass
✓
Bad inputs give a clean error
All good
- ✓find_trips: Refused missing required input "home" with a clear error
- ✓find_trips: Refused wrong type for "home" with a clear error
- ✓price_calendar: Refused missing required input "home" with a clear error
- ✓price_calendar: Refused wrong type for "home" with a clear error
- ✓trip_details: Refused missing required input "trip_id" with a clear error
- ✓trip_details: Refused wrong type for "trip_id" with a clear error
pass
✓
Fast enough
All good
- ✓Connecting took 768 ms
- ✓Listing tools took 200 ms
- ✓Average tool answer: 240 ms
- ✓find_trips: Slowest tool: find_trips (294 ms)
pass
✓
No secrets leakedChecked 9 error messages: no secrets or internal details
pass
✓
Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
pass
–
Tools work togetherNo safe tool returned data to start a chain from, so chains were not tested (not counted either way)
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://doorfarer.com/mcp

Show this score on GitHub

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[![QAmcp score](https://qamcp.dev/s/com-doorfarer-doorfarer.svg)](https://qamcp.dev/s/com-doorfarer-doorfarer.html)

Score over time

30 Oct 202695

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Doorfarer, signed in with GitHub, one per person. Reviews never change the score.

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