# Jetopolis (remote · jetopolis.app)

Airline strategy game 1950-2030: live worlds, leaders, historical airlines, aircraft prices

- Trust score: 84/100 (high trust)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `jetopolis.app`: 84/100 (this document), [markdown](https://verifymcp.io/servers/app-jetopolis-game/jetopolis.md), [page](https://verifymcp.io/servers/app-jetopolis-game/jetopolis)

## Channel facts

- Endpoint: `https://jetopolis.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 69/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 83/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - 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.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 94/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 78% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### 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.

### Claude

```bash
claude mcp add --transport http app-jetopolis-game 'https://jetopolis.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "app-jetopolis-game": {
      "url": "https://jetopolis.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "app-jetopolis-game": {
      "type": "http",
      "url": "https://jetopolis.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.app-jetopolis-game]
url = "https://jetopolis.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "app-jetopolis-game": {
      "type": "remote",
      "url": "https://jetopolis.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add app-jetopolis-game --url 'https://jetopolis.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  app-jetopolis-game:
    url: "https://jetopolis.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "app-jetopolis-game": {
      "Transport": "http",
      "Url": "https://jetopolis.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add app-jetopolis-game -t streamable-http -u 'https://jetopolis.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "app-jetopolis-game": {
      "type": "http",
      "url": "https://jetopolis.app/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-29 (score 84, 0)

- [security] Stability: 0.97 → pass
- [functional] Server version: d0f20e7 → f8977ae

### 2026-10-28 (score 84, +1)

- [functional] Server version: 2487b22 → d0f20e7

### 2026-10-27 (score 83, 0)

- [functional] Server version: 082afdc → 2487b22

### 2026-10-26 (score 83, +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.

### 2026-10-24 (score 82, +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.

### 2026-10-22 (score 81, +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.

### 2026-10-20 (score 80, +1)

- [functional] Server version: 3506861 → 082afdc

### 2026-10-19 (score 79, 0)

- [functional] Server version: 2f8e8c6 → 3506861

## MCP tools (7)

### `list_worlds` (~170 tokens)

Live worlds

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.

Input parameters:

- `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

Output parameters:

- `asOf` (string)
- `worlds` (array)

### `get_world` (~96 tokens)

One world

One Jetopolis world by id: the same card as in list_worlds plus finishedAt for a world that has ended.

Input parameters:

- `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, required): World id from list_worlds

Output parameters:

- `active24h` (integer)
- `endYear` (integer)
- `era` (string)
- `eraName` (string)
- `finishedAt` (string|null)
- `gameDate` (string)
- `id` (string)
- `maxPlayers` (integer)
- `name` (string)
- `players` (integer)
- `region` (string)
- `startYear` (integer)
- `status` (string)
- `tickMinutes` (integer)
- `type` (string)
- `typeName` (string)
- `url` (string)
- `year` (integer)

### `world_standings` (~145 tokens)

World leaders

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.

Input parameters:

- `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, required): World id from list_worlds

Output parameters:

- `asOf` (string)
- `gameDate` (string)
- `standings` (array)
- `world` (object)

### `historical_airlines` (~197 tokens)

Historical airlines of a year

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.

Input parameters:

- `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, required): Calendar year, 1950-2030

Output parameters:

- `airlines` (array)
- `total` (integer)
- `year` (integer)

### `aircraft_catalog` (~207 tokens)

Aircraft catalog

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.

Input parameters:

- `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

Output parameters:

- `aircraft` (array)
- `total` (integer)

### `aircraft_price` (~124 tokens)

Aircraft price in a game year

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.

Input parameters:

- `model` (string, required): Aircraft id from aircraft_catalog (a320-200) or part of its name (A320, 747-400)
- `year` (integer, required): Game year to price the aircraft in

Output parameters:

- `candidates` (array)
- `match`
- `note` (string)
- `year` (integer)

### `how_to_start` (~50 tokens)

How to start playing

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.

Input parameters:

- `lang` (string)

Output parameters:

- `facts` (object)
- `lang` (string)
- `links` (object)
- `pitch` (string)
- `steps` (array)
- `title` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/app-jetopolis-game/jetopolis#diagnostics

## Score history

- 2026-11-05: 84
- 2026-11-04: 84
- 2026-11-03: 84
- 2026-11-02: 84
- 2026-11-01: 84
- 2026-10-31: 84
- 2026-10-30: 84
- 2026-10-29: 84
- 2026-10-28: 84
- 2026-10-27: 83
- 2026-10-26: 83
- 2026-10-25: 82
- 2026-10-24: 82
- 2026-10-23: 81
- 2026-10-22: 81
- 2026-10-21: 80
- 2026-10-20: 80
- 2026-10-19: 79
- 2026-10-18: 79
- 2026-10-17: 78
- 2026-10-16: 78
- 2026-10-15: 77
- 2026-10-14: 77
- 2026-10-13: 77
- 2026-10-12: 76
- 2026-10-10: 75
- 2026-10-07: 74
- 2026-10-06: 73
- 2026-10-04: 72
- 2026-10-03: 72

## Common questions

### 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.

## Links

- Remote endpoint: https://jetopolis.app/mcp
- Website: https://jetopolis.app/
- Changelog RSS feed: https://verifymcp.io/servers/app-jetopolis-game/jetopolis.xml
- Changelog JSON feed: https://verifymcp.io/servers/app-jetopolis-game/jetopolis.json
- HTML version of this page: https://verifymcp.io/servers/app-jetopolis-game/jetopolis