Fly Where To?

by flywhereto.com · remote · no sign-in to list tools · v1.4.0 · published by com.flywhereto

Worldwide nonstop flight routes from Wikipedia: airports, destinations, connections, airlines.

Changes · 5

Compare Registry entry

8 tools: 5 change things and 3 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things5Claude Code: ask: see these tools
Only reads3Claude Code: allow: see these tools

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

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

Tools

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

8 tools

Changes things 5Creates or changes something that can be changed back.Claude Code: ask

airline_routesThe full network one airline flies: every origin with its nonstop destinations, as IATA codes.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
The full network one airline flies: every origin with its nonstop destinations, as IATA codes. Look up by IATA airline code ("TK") or name fragment ("turkish"). Ambiguous queries return a candidate list to refine from.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
destinations_fromAll airports reachable nonstop from a given origin, with the service kinds (scheduled, seasonal, charter, suspended, ...) per destination.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
All airports reachable nonstop from a given origin, with the service kinds (scheduled, seasonal, charter, suspended, ...) per destination. Optionally filter by kind and include the operating airlines. Seasonal and charter service carries no operating dates; treat as unverified for specific travel dates.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
most_connected_airportsAirports ranked by number of nonstop destinations served, worldwide or within one country.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Airports ranked by number of nonstop destinations served, worldwide or within one country.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
reachable_fromHow far the network stretches from one airport within a stop budget: totals, breakdown by stop count and by country.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
How far the network stretches from one airport within a stop budget: totals, breakdown by stop count and by country. Pass country to list the individual reachable airports there with their minimum stops.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
route_detailsWhich airlines fly nonstop between two airports, with alliance, homepage and the service periods of each.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Which airlines fly nonstop between two airports, with alliance, homepage and the service periods of each. Only periods of kind begins, ends or resumes ever carry dates; scheduled, seasonal and charter periods have none, so seasonal service is unverified for specific travel dates. Responses include book deep links to Kiwi.com search results (our referral id included); without depart_date the link defaults to a one-way search two weeks out.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false

Only reads 3Looks things up and changes nothing.Claude Code: allow

find_airportLook up airports by IATA/ICAO code or by name fragment.No findings
Why it is in this group
- The name "find_airport" says "find": a word for reading.
Description, as the server wrote it
Look up airports by IATA/ICAO code or by name fragment. Returns code, name, country, coordinates and how many nonstop destinations each serves. Use this first when you only have a city or airport name.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
find_connectionsMulti-stop itineraries from an origin airport to either a destination airport or to any airport in a country.No findings
Why it is in this group
- The name "find_connections" says "find": a word for reading.
Description, as the server wrote it
Multi-stop itineraries from an origin airport to either a destination airport or to any airport in a country. Returns airport paths with every airline flying each leg. Airline entries carry their alliance and, when service is not plain scheduled, a kind field (seasonal, charter or suspended). Suspended legs are included and flagged, not excluded; pass exclude_kinds to drop them. Seasonal and charter service carries no operating dates and there is no frequency or days-of-week data, so treat every match as unverified for specific travel dates. Provide exactly one of destination or to_country. Responses include book deep links to Kiwi.com search results (our referral id included); without depart_date the link defaults to a one-way search two weeks out.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false
find_meetupBest meet-up airports for travellers from multiple origins, ranked by combined travel effort using the same scoring as the site.No findings
Why it is in this group
- The name "find_meetup" says "find": a word for reading.
Description, as the server wrote it
Best meet-up airports for travellers from multiple origins, ranked by combined travel effort using the same scoring as the site. Origins can be weighted by traveller count. Scores are kilometre values, lower is better; optimize "score" and "total_distance" both rank by weighted total distance (the frontend default), "worst_case" by the longest single journey. Candidates everyone can reach always rank above candidates someone cannot. Route data only: no fares, no frequency or days-of-week data; non-scheduled legs are flagged with a kind field. The map link stores the query as an anonymous share code and reopens it in the site’s meet-up planner. Each reachable party carries a book deep link for its own journey to the candidate. Responses include book deep links to Kiwi.com search results (our referral id included); without depart_date the link defaults to a one-way search two weeks out.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: false

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.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:32 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 5
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: none
RFC 9728 protected resource metadata: none
Authorization servers: none
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 5 tools that change things (5 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://flywhereto.com/api/mcp: tools/list returned 8 tools to an anonymous client, including destinations_from (write), route_details (write), most_connected_airports (write), reachable_from (write), airline_routes (write)
What this check looks for

Install

Pinned to version 1.4.0. Values in angle brackets are yours to fill in.

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

Run in a terminal.

Claude Code permissions

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

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__flywhereto__find_airport",
      "mcp__flywhereto__find_connections",
      "mcp__flywhereto__find_meetup"
    ],
    "ask": [
      "mcp__flywhereto__destinations_from",
      "mcp__flywhereto__route_details",
      "mcp__flywhereto__most_connected_airports",
      "mcp__flywhereto__reachable_from",
      "mcp__flywhereto__airline_routes"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as flywhereto. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.flywhereto/mcp/changes.xml

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Anlyon alternative

5 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Source: MCP Registry. Synced Oct 21, 2026, 17:55 UTC.

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