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whatevertrips

by whatevertrips.com · remote · no sign-in to list tools · v1.0.0 · published by com.whatevertrips

Cheap flights in Europe and multi-city trip plans from cached airline prices, with shareable links.

Changes · 2
CompareRegistry entry

4 tools: 2 change things and 2 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http flights https://api.whatevertrips.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnplan_trips

    The server marks "plan_trips" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"idempotentHint":false,"openWorldHint":false}; The description's first verb is "generate": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 2Claude Code: ask
  • plan_tripsGenerate cheap round trips through several cities, from cached flights.1 finding

    Why it is in this group

    • The description's first verb is "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "plan_trips" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"idempotentHint":false,"openWorldHint":false}; The description's first verb is "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Generate cheap round trips through several cities, from cached flights. Accepts one departure city (from) or up to 5 (from_cities); with several, a trip can return to a different one of them. Returns trips sorted by total price. To share or book a trip, pass its flight_ids to save_trip.

    Annotations the server declares

    • idempotentHint: false
    • openWorldHint: false
    • readOnlyHint: true
  • save_tripSave a trip from flight ids returned by search_flights or plan_trips.No findings

    Why it is in this group

    • The name "save_trip" says "save": a word for a change.
    Description, as the server wrote it
    Save a trip from flight ids returned by search_flights or plan_trips. Returns a public page with the trip and a booking link on Kiwi.com. Prices are confirmed on the booking site.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: false
Only reads 2Claude Code: allow
  • search_citiesFind city names we have flights for.No findings

    Why it is in this group

    • The name "search_cities" says "search": a word for reading.
    Description, as the server wrote it
    Find city names we have flights for. Use the exact name in the other tools.

    Annotations the server declares

    • idempotentHint: false
    • openWorldHint: false
    • readOnlyHint: true
  • search_flightsCheapest one-way flights between two cities, or from one city to anywhere, from cached airline prices.No findings

    Why it is in this group

    • The name "search_flights" says "search": a word for reading.
    Description, as the server wrote it
    Cheapest one-way flights between two cities, or from one city to anywhere, from cached airline prices. Dates are a departure window.

    Annotations the server declares

    • idempotentHint: false
    • openWorldHint: false
    • readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http flights https://api.whatevertrips.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__flights__search_cities",
      "mcp__flights__search_flights"
    ],
    "ask": [
      "mcp__flights__plan_trips",
      "mcp__flights__save_trip"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as flights. Review it before you use it.