LetsFG (LetsFG/LetsFG) is an MCP server listed on the M8ven Trust Index. It scores 98 out of 100, grade A. It declares 14 tools. No publisher has claimed this listing.

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A
Trusted
98/100

LetsFG

Agent-native flight & hotel search and booking — MCP server, CLI, and Python/JS SDKs. Hundreds of airlines plus the major booking sites, with per-flight reliability history. Free-cancellation hotel rates: hold the room with a small upfront charge, then pay the balance later by link, up to the hotel's own deadline.

→ LetsFG/LetsFG· npm: boostedtravel-mcp· pypi: boostedtravel· listed on official

Trusted. Deep verification, no outstanding findings, and an established reputation. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

LetsFG

Source: Official · also listed on PulseMCP, Glama, github_repo_search

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

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Install from

Officialnot scored herePulseMCPnot scored hereGlamanot scored hereGitHub

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
✅
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 3 credentials: LETSFG_API_KEY, LETSFG_BEARER_TOKEN, LETSFG_PROBE_SECRET
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// 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.
🔐 secretLETSFG_API_KEY
configLETSFG_BASE_URL
🔐 secretLETSFG_BEARER_TOKENThe stdio package (npx -y letsfg-mcp) still works for search if you give it a token in ; its own authenticate tool points at the retired Stripe enrolment and is being moved to the connect flow.
configLETSFG_USER_AGENT
configLETSFG_WAIT_FOR_SPLITSet =0 if you would rather have the fast answer.
configLETSFG_WEBSITE_DIR
🔐 secretLETSFG_PROBE_SECRET
configLETSFG_TOKEN_EXPIRES_AT
configXDG_CONFIG_HOME
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

14/14 tools missing one or more hints — search_flights (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); resolve_location (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); book_flight (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +11 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool test coverage

5/14 tools referenced in tests (36%)

Write tests that reference each tool by name so every tool has at least one test.

Secrets not logged

33 secret values sent to log/error

Redact or omit secret values from log output.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// 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.
// improvement guidance — verified publishers only
We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/letsfg/letsfg)](https://m8ven.ai/mcp/letsfg/letsfg)
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commit: 7023e687c16aa6ecf7e7d9e12b97af09e3626b4c
code hash: 5c1f4f4a73571fb3cf5e1872c859cfa9d1a9fd74661fe79efe37f3be972d2e0c
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