ToolTrust
B19/100
Smithery

letsfg

mcpsmithery

@Smithery

Agent-native flight search. 102 airline connectors fire in parallel — Ryanair, EasyJet, Wizz Air, Southwest, AirAsia, Qantas, and 96 more — plus enterprise GDS/NDC providers (Amadeus, Duffel, Sabre, Travelport) through the LetsFG backend. One tool call scans the entire world for flights, including airlines your agent didn't know existed. Your agent doesn't need to build a flight integration. It doesn't need to scrape. Just add this MCP server and it can search and book flights in seconds. ### Why? Flight websites inflate prices with demand tracking, cookie-based pricing, and surge markup. The same flight is often **$20–$50 cheaper** through LetsFG — raw airline price, zero markup. ### How it works `search_flights` fires all relevant connectors in parallel on your machine + queries enterprise GDS sources in the cloud. Results come back merged, deduplicated, sorted by price. ~5 seconds for a full global search. ### Tools | Tool | What it does | Cost | |------|-------------|------| | `search_flights` | Search 400+ airlines | Free | | `search_hotels` | Search hotels worldwide | Free | | `resolve_location` | City/airport → IATA code | Free | | `get_agent_profile` | Your usage & profile | Free | | `unlock_flight_offer` | Confirm live price, reserve 30 min | Free | | `setup_payment` | Attach Stripe payment | Free | | `book_flight` | Book with real PNR + e-ticket | Ticket price only | **Search is free forever. Booking charges the raw airline ticket price via Stripe — we add zero margin.** `LETSFG_API_KEY` is optional. Without it, the server runs all 102 local connectors. With it, you also get 400+ airlines via enterprise GDS/NDC sources. ### Pricing - **Personal use** — completely free. Search, unlock, book. No limits. - **Commercial use** — 1% fee (min $1 USD) per booking, collected via Stripe Connect. Search and unlock are still free. - **First 1,000 GitHub stars** — star the repo and link your GitHub username to get free unlimited access (personal & commercial). No trial, no catch. ### Links - **GitHub:** [github.com/LetsFG/LetsFG](https://github.com/LetsFG/LetsFG) — full docs, 102 connector source code, architecture guide, agent integration tutorials - **API Docs:** [api.letsfg.co/docs](https://api.letsfg.co/docs) - **PyPI:** [pypi.org/project/letsfg](https://pypi.org/project/letsfg/) - **npm:** [npmjs.com/package/letsfg-mcp](https://www.npmjs.com/package/letsfg-mcp)

By Smithery | 13 findings | Scanned 4/19/2026 | tooltrust-scanner/v0.3.8

2 High1 Medium3 Low7 Info

Risk Summary

Safe With Normal Controls

Dep Visibility is the main signal, but overall risk remains within an acceptable range.

Potential impact: This finding indicates the tool should be reviewed before it is trusted.

Recommended action: No high-risk findings were detected in this scan, but you should still apply least-privilege defaults and rescan after changes.

Suggested policy: keep this tool behind manual approval, do not allow unattended runs, and re-scan after narrowing risky permissions.

Security Findings (13)

  • HighAS-002

    ⚠️Excessive Permissions

    search_flights:tool declares network permission

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • HighAS-010

    🔑Insecure Secret Handling

    setup_payment:input parameter "token" appears to accept a secret or credential

    Fix: Avoid accepting raw credentials as input parameters. Use secret managers (e.g. 1Password CLI, AWS Secrets Manager) and ensure credentials are never logged or stored in agent traces.

  • MediumAS-002

    ⚠️Excessive Permissions

    get_agent_profile:tool declares fs permission

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • LowAS-011

    ℹ️Missing Rate-Limit / Timeout ×2

    tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration

    search_flightssetup_payment

    Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

  • LowAS-002

    ⚠️Excessive Permissions

    setup_payment:tool declares http permission

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • InfoAS-014

    ℹ️Dependency Inventory Unavailable ×7

    Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.

    search_flightsresolve_locationunlock_flight_offerbook_flightsetup_paymentget_agent_profilesystem_info

    Fix: Review and remediate the identified issue.

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$ curl -sfL https://raw.githubusercontent.com/AgentSafe-AI/tooltrust-scanner/main/install.sh | bash
$ tooltrust-scanner scan --server "npx -y letsfg"

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