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Directory / Google Flights MCP

Google Flights MCP

Q: Is Google Flights MCP server safe?

QAmcp's test on 2 Nov 2026: None of the hidden-instruction wordings we know were found in its tool descriptions. 0 of its 2 tools are labeled read-only; the others may change or send things. Overall it scored 93/100 on 2 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 mcps.wondel.ai · https://mcp.wondel.ai/google-flights/mcp

Live Google Flights fares: search routes, discover cheap deals from an origin.

2 tools✓ no account neededPricing: not listed

Visit website

93 /100

PASS · WITH NOTES

Partial: 8 of 11 checks · 2 Nov 2026

Is Google Flights MCP server safe?

None of the hidden-instruction wordings we know were found in its tool descriptions.
0 of its 2 tools are labeled read-only; the others may change or send things.
Overall it scored 93/100 on 2 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

2 tools, in the server's own words.

google_flights_search

Search Google Flights live via SerpAPI.

google_flights_deals_search

Discover cheap flight destinations from an origin via SerpAPI's Google Flights Deals engine (google_flights_deals).

Test results

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

!
Tools are labeled safe or dangerous
1 warning
- !2 of 2 tools have no safety label (read-only or dangerous): google_flights_search, google_flights_deals_search
note
!
Follows MCP best practices (not scored yet)
2 tips (not scored)
- !2 tools not labeled read-only don't say whether running them twice is safe (idempotentHint): google_flights_search, google_flights_deals_search
- !2 tools don't say whether they reach outside services like the web (openWorldHint): google_flights_search, google_flights_deals_search
note
✓
ConnectsConnected in 31 ms
pass
✓
Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
pass
✓
Lists its toolsFound 2 tools
pass
✓
Every tool is describedAll 2 tools and their inputs are described
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
✓
Fast enough
All good
- ✓Connecting took 31 ms
- ✓Listing tools took 107 ms
pass
–
Tools work with good inputs
Not tested
- –google_flights_search: Not run: no safety label (if you own this server, test again in owner mode)
- –google_flights_deals_search: Not run: no safety label (if you own this server, test again in owner mode)
not tested
–
Bad inputs give a clean errorNot tested
not tested
–
Tools work togetherNo safe tool returned data to start a chain from, so chains were not tested (not counted either way)
not tested
–
No secrets leakedNo error messages to check
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://mcp.wondel.ai/google-flights/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/ai-wondel-google-flights.svg)](https://qamcp.dev/s/ai-wondel-google-flights.html)

Score over time

2 Nov 202693

One test so far. New tests will show here.

Reviews

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

Is this your server? Get an alert the moment it breaks.

QAmcp Monitor tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. Free for 1 server, no card.

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