Jetopolis
REMOTE · JETOPOLIS.APP
Airline strategy game 1950-2030: live worlds, leaders, historical airlines, aircraft prices
Available components
Last scanned (2 hours ago)
Scores higher than 89% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Entertainment and Games
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security69
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability83
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1028 tokens (~114/item across 9 items; 7 tools + 2 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage94
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 78% of tool parameters carry a description.Partial
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 29 Oct 26 0
- Stability: 0.97 → pass security
- Server version: d0f20e7 → f8977ae functional
- 28 Oct 26 +1
- Server version: 2487b22 → d0f20e7 functional
- 27 Oct 26 0
- Server version: 082afdc → 2487b22 functional
- 26 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 24 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Oct 26 +1
- Server version: 3506861 → 082afdc functional
- 19 Oct 26 0
- Server version: 2f8e8c6 → 3506861 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://jetopolis.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=jetopolis.app | CN=WE1,O=Google Trust Services,C=US | 1 Nov 2026 | 30 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | c55538864627ae4a1364050e297605c2 |
| SANs: jetopolis.app, *.jetopolis.app | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of jetopolis.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| jetopolis.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| content-security-policy | default-src 'none'; frame-ancestors 'none' |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://jetopolis.app/mcp | Verified | 200 | |
| http (plaintext) | http://jetopolis.app/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
aircraft_catalog Aircraft catalog ~207
Aircraft types of the game catalog: seats in two classes, range, cruise speed, required runway, entry into service and end of production, and the list price in millions of US dollars of the entry-into-service year. With year, only types already flying that year are returned and availabilityInYear says whether they are sold new or only on the used market.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| lang | string | – | Language for the human-readable labels next to keys, one of the 25 game locales (en, ru, de, fr, es, ja, zh-CN and others); unknown values fall back to English |
| limit | integer | – | – |
| manufacturer | string | – | Substring, case-insensitive |
| query | string | – | Substring of the model name or id, case-insensitive (A320, 747, dc-3) |
| year | integer | – | Only aircraft already in service in this year; also fills availabilityInYear |
| Name | Type | Req | Description |
|---|---|---|---|
| aircraft | array | yes | – |
| total | integer | yes | – |
No examples provided.
aircraft_price Aircraft price in a game year ~124
In-game catalogue price of a new aircraft in a given year: the entry-into-service price inflated by US CPI to nominal dollars of that year, and the same price in 2024 dollars. Accepts an id from aircraft_catalog or part of the name; when several types match and the year does not settle it, returns candidates to choose from.
| Name | Type | Req | Description |
|---|---|---|---|
| model | string | yes | Aircraft id from aircraft_catalog (a320-200) or part of its name (A320, 747-400) |
| year | integer | yes | Game year to price the aircraft in |
| Name | Type | Req | Description |
|---|---|---|---|
| candidates | array | yes | – |
| match | – | yes | – |
| note | string | yes | – |
| year | integer | yes | – |
No examples provided.
get_world One world ~96
One Jetopolis world by id: the same card as in list_worlds plus finishedAt for a world that has ended.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Language for the human-readable labels next to keys, one of the 25 game locales (en, ru, de, fr, es, ja, zh-CN and others); unknown values fall back to English |
| worldId | string | yes | World id from list_worlds |
| Name | Type | Req | Description |
|---|---|---|---|
| active24h | integer | yes | – |
| endYear | integer | yes | – |
| era | string | yes | – |
| eraName | string | yes | – |
| finishedAt | string|null | yes | – |
| gameDate | string | yes | – |
| id | string | yes | – |
| maxPlayers | integer | yes | – |
| name | string | yes | – |
| players | integer | yes | – |
| region | string | yes | – |
| startYear | integer | yes | – |
| status | string | yes | – |
| tickMinutes | integer | yes | – |
| type | string | yes | – |
| typeName | string | yes | – |
| url | string | yes | – |
| year | integer | yes | – |
No examples provided.
historical_airlines Historical airlines of a year ~197
Real airlines that operated in a given year (1950-2030) as the game knows them: name, IATA code when reliably known, home country and region, type, years of operation, and the countries each one served that year. Network data has decade precision: a country listed for the 1960s may have been added mid-decade. servedCountries lists destinations from home; when networkKnown is false only the home country is known. Sorted by the airline size in the dataset.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Home country of the airline, ISO 3166-1 alpha-2 (GB, US, FR) |
| kind | string | – | flag carrier, major, regional, low-cost or charter |
| limit | integer | – | At most this many airlines |
| region | string | – | Game region of the airline base |
| year | integer | yes | Calendar year, 1950-2030 |
| Name | Type | Req | Description |
|---|---|---|---|
| airlines | array | yes | – |
| total | integer | yes | – |
| year | integer | yes | – |
No examples provided.
how_to_start How to start playing ~50
How to start playing Jetopolis: the steps from the first click to the first route, the world pace and links to the game and its guides. English or Russian.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| facts | object | yes | – |
| lang | string | yes | – |
| links | object | yes | – |
| pitch | string | yes | – |
| steps | array | yes | – |
| title | string | yes | – |
No examples provided.
list_worlds Live worlds ~170
Public Jetopolis worlds open right now: name, server region, pace (Standard: 1 game day = 20 real minutes, Blitz: 5), start and end year, current game date and era, players and seats, players active in the last 24 hours, and a link to open the world. Worlds never pause.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Language for the human-readable labels next to keys, one of the 25 game locales (en, ru, de, fr, es, ja, zh-CN and others); unknown values fall back to English |
| region | string | – | Server region of the world |
| status | string | – | – |
| type | string | – | STANDARD: 1 game day = 20 min, BLITZ: 5 min |
| Name | Type | Req | Description |
|---|---|---|---|
| asOf | string | yes | – |
| worlds | array | yes | – |
No examples provided.
world_standings World leaders ~145
Player airlines of a world ranked by rating: airline name and two-letter code, home base, rating, aircraft in service, open routes, founding date, status and a link to the public airline card. Updated once per game day of that world. Cash, fares and profit are private to each player and are never returned.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Language for the human-readable labels next to keys, one of the 25 game locales (en, ru, de, fr, es, ja, zh-CN and others); unknown values fall back to English |
| limit | integer | – | – |
| worldId | string | yes | World id from list_worlds |
| Name | Type | Req | Description |
|---|---|---|---|
| asOf | string | yes | – |
| gameDate | string | yes | – |
| standings | array | yes | – |
| world | object | yes | – |
No examples provided.
How do I install the Jetopolis MCP server?
Jetopolis is a hosted endpoint at https://jetopolis.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · jetopolis.app
claude mcp add --transport http app-jetopolis-game 'https://jetopolis.app/mcp'
What is the Jetopolis MCP server?
Jetopolis is an MCP server listed in the public MCP registry as app.jetopolis/game. Airline strategy game 1950-2030: live worlds, leaders, historical airlines, aircraft prices. This page covers its hosted endpoint (https://jetopolis.app/mcp).
Is the Jetopolis MCP server safe to use?
Jetopolis scores 84 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Jetopolis MCP server expose?
Jetopolis exposes 7 tools: list_worlds, get_world, world_standings, historical_airlines, aircraft_catalog, and 2 more. Their descriptions and schemas cost roughly 989 tokens of context every time the server is loaded.
Does the Jetopolis MCP server require authentication?
No. We connected to Jetopolis without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Jetopolis MCP server still maintained?
Jetopolis is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.