google-flights-mcp-free (mtnrabi/google-flights-mcp-free) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 1 tool. The publisher has confirmed an email address for this listing, which proves an inbox rather than ownership (Claimed).

C
Emerging
74/100

google-flights-mcp-free

Free, ad-supported MCP server for real-time Google Flights and Booking.com search. No API key - sign in with Google. 150 searches a day, funded by one disclosed sponsored card per result.

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

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Who stands behind it

mtnrabi · Claimed

Source: Glama · also listed on github_repo_search

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Install from

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
1 tools verified — handlers match their declared behaviour
3 read-only tools verified — handlers contain no write/delete/exec
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 5 credentials: METRICS_TOKEN, UPSTASH_REDIS_REST_TOKEN, KV_REST_API_TOKEN, MCP_SIGNIN_SECRET, GOOGLE_OAUTH_CLIENT_SECRET
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
Are you the publisher? Confirm or correct these findings.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretMETRICS_TOKENGET /metrics (set to require an x-metrics-token header).
configFREE_UNSUBSCRIBE_BASE
configFREE_ANON_MODEanyone, /mcp/oauth a 404. =open is the softer rollback: it
configMCP_OAUTH
configUPSTASH_REDIS_REST_URL
configKV_REST_API_URL
🔐 secretUPSTASH_REDIS_REST_TOKEN
🔐 secretKV_REST_API_TOKEN
🔐 secretMCP_SIGNIN_SECRET
configGOOGLE_OAUTH_CLIENT_IDGoogle sign-in. Redirect URI is <origin>/connect/callback, scopes openid and .../auth/userinfo.email.
🔐 secretGOOGLE_OAUTH_CLIENT_SECRETand DATABASE_URL are all set. A deployment
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployDATABASE_URL
// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/mtnrabi/google-flights-mcp-free)](https://m8ven.ai/mcp/mtnrabi/google-flights-mcp-free)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: f632155a8951d9a421039067792c4df3785426d8
code hash: 25c85ccf5a9c2ee29eabd0e465b43da86e8dbb74f55c56110dd8c1f89757efe2
view raw JSON →
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