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com.trainrouter/atlas

by trainrouter.com · remote · no sign-in to list tools · v1.0.4 · published by com.trainrouter

The world railway atlas as MCP tools: notable train routes, night trains, journey times.

Final · 1Changes · 4
CompareRegistry entry

7 tools: 1 do something that can't be undone, 4 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 atlas https://trainrouter.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warncity_pair

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

    Matched text

    annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.

    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.

7 tools

Can't be undone 1Claude Code: ask
  • city_pairJourney facts between two cities (European coverage): fastest and typical duration, whether direct trains run, fewest changes, operators and the guide URL — plus legendary atlas ro…1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

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

      Matched text

      annotations: {"readOnlyHint":true,"idempotentHint":true,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Journey facts between two cities (European coverage): fastest and typical duration, whether direct trains run, fewest changes, operators and the guide URL — plus legendary atlas routes on that corridor. Direction-insensitive. Figures are sampled from public schedule data, not live times — treat as planning estimates. An uncovered pair returns an error with a search_routes tip.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
Changes things 4Claude Code: ask
  • atlas_statsOne-call snapshot of what the World Train Map atlas covers: total route count, countries, combined length in km, the category list, number of city-pair guides, data snapshot date, …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
    One-call snapshot of what the World Train Map atlas covers: total route count, countries, combined length in km, the category list, number of city-pair guides, data snapshot date, and direct URLs to the main browse pages (world map, all routes, Europe/USA maps, night trains, scenic, by-country, city-to-city). Takes no parameters. Call it to learn what this server can answer, to cite dataset totals, or to link a browse page — it returns no individual routes; use search_routes or famous_routes for those.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
  • famous_routesThe world's most famous train journeys in World Train Map's renown order (rank 1 = most famous: Trans-Siberian, Glacier Express, Orient Express lineage, Shinkansen…), as compact fa…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 world's most famous train journeys in World Train Map's renown order (rank 1 = most famous: Trans-Siberian, Glacier Express, Orient Express lineage, Shinkansen…), as compact facts with id and URL per route. Best first call for bucket-list and "greatest train trips" questions; use search_routes to find something specific, get_route for full detail on one route.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
  • night_trainsSleeper routes from the atlas, sorted by renown — all of them by default, or only those starting or ending in a given city — with the per-city night-train guide URL when one exists…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
    Sleeper routes from the atlas, sorted by renown — all of them by default, or only those starting or ending in a given city — with the per-city night-train guide URL when one exists. Use for overnight and sleeper questions; city_pair for concrete A-to-B times; search_routes for other route categories.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
  • routes_in_countryEvery atlas route crossing one country, sorted by renown, plus that country's worldtrainmap.com hub URL when it exists.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
    Every atlas route crossing one country, sorted by renown, plus that country's worldtrainmap.com hub URL when it exists. An unrecognised country returns an error, not an empty list. Use for "trains in X" questions; use search_routes to combine a country with text or category filters, night_trains for sleepers only.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
Only reads 2Claude Code: allow
  • get_routeFull record for one atlas route by exact id: distance, fastest time, top speed, operator, rolling stock, opening year, ridership, story, on-route sights, photo and page URL, plus c…No findings

    Why it is in this group

    • The name "get_route" says "get": a word for reading.
    Description, as the server wrote it
    Full record for one atlas route by exact id: distance, fastest time, top speed, operator, rolling stock, opening year, ridership, story, on-route sights, photo and page URL, plus country-hub links. An unknown id returns up to 5 close-match suggestions instead of failing. Use search_routes first when you only have a name or city.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
  • search_routesFree-text search over every route in the World Train Map atlas — matches route name, cities, train name, operator and countries, with optional category/country filters.No findings

    Why it is in this group

    • The name "search_routes" says "search": a word for reading.
    Description, as the server wrote it
    Free-text search over every route in the World Train Map atlas — matches route name, cities, train name, operator and countries, with optional category/country filters. Accent-insensitive; every word of the query must match. Returns compact per-route facts with id and worldtrainmap.com URL, sorted by renown with route-name matches first; with no query it lists the whole atlas by renown. Use get_route with a returned id for full detail, famous_routes for a ready-made top list, city_pair for A-to-B journey times.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: 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.

Install

Pinned to version 1.0.4. Values in angle brackets are yours to fill in.

claude mcp add --transport http atlas https://trainrouter.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__atlas__search_routes",
      "mcp__atlas__get_route"
    ],
    "ask": [
      "mcp__atlas__famous_routes",
      "mcp__atlas__routes_in_country",
      "mcp__atlas__night_trains",
      "mcp__atlas__city_pair",
      "mcp__atlas__atlas_stats"
    ],
    "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 atlas. Review it before you use it.