# Transport & travel (remote · fourzerotwo.si)

Airports, runways and frequencies worldwide, tides, UK road collisions and London transport.

- Trust score: 78/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-22

## Components

- remote · `fourzerotwo.si`: 78/100 (this document), [markdown](https://verifymcp.io/servers/si-fourzerotwo-transport/mcp-v-transport.md), [page](https://verifymcp.io/servers/si-fourzerotwo-transport/mcp-v-transport)

## Channel facts

- Endpoint: `https://fourzerotwo.si/mcp/v/transport`
- 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 2026-10-22.

- **Endpoint Security**: 80/100
  - 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 is enforced; there's no plaintext access path.
  - 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**: 72/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 2479 tokens (~79/item across 31 items; 31 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 31 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 32 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Transport & travel MCP server?

Transport & travel is a hosted endpoint at https://fourzerotwo.si/mcp/v/transport, 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 si-fourzerotwo-transport 'https://fourzerotwo.si/mcp/v/transport'
```

### Cursor

```json
{
  "mcpServers": {
    "si-fourzerotwo-transport": {
      "url": "https://fourzerotwo.si/mcp/v/transport"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "si-fourzerotwo-transport": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/transport"
    }
  }
}
```

### Codex

```toml
[mcp_servers.si-fourzerotwo-transport]
url = "https://fourzerotwo.si/mcp/v/transport"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "si-fourzerotwo-transport": {
      "type": "remote",
      "url": "https://fourzerotwo.si/mcp/v/transport",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add si-fourzerotwo-transport --url 'https://fourzerotwo.si/mcp/v/transport' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  si-fourzerotwo-transport:
    url: "https://fourzerotwo.si/mcp/v/transport"
```

### Netclaw

```json
{
  "McpServers": {
    "si-fourzerotwo-transport": {
      "Transport": "http",
      "Url": "https://fourzerotwo.si/mcp/v/transport"
    }
  }
}
```

### Vellum

```bash
assistant mcp add si-fourzerotwo-transport -t streamable-http -u 'https://fourzerotwo.si/mcp/v/transport'
```

### Other

```json
{
  "mcpServers": {
    "si-fourzerotwo-transport": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/transport"
    }
  }
}
```

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.

### 2026-10-22 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-20 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-18 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-16 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-14 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-13 (score 73, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-12 (score 73)

First indexed and scored.

## MCP tools (31)

### `airports__airport` (~82 tokens)

Airports Worldwide: Airport by code

An airport by ICAO, IATA or ident: name, type, town, country and region, location, elevation, runways and frequencies. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `code` (string, required): ICAO (EGLL), IATA (LHR) or OurAirports ident

### `airports__search` (~121 tokens)

Airports Worldwide: Search airports

Find airports by name or town and/or country, optionally by type or scheduled service only; biggest first. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `country` (string): 2-letter country code
- `limit` (integer): Max results (default 20)
- `name` (string): Airport name or town
- `scheduled` (string): 1 = scheduled passenger service only
- `type` (string): large | medium | small | heliport | seaplane_base | closed

### `airports__near` (~150 tokens)

Airports Worldwide: Airports near a point

Airports (large/medium/small by default) within a radius of a point or UK postcode, nearest first. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `lat` (string): Latitude (or give a UK postcode)
- `limit` (integer): Max results (default 10)
- `lng` (string): Longitude
- `postcode` (string): UK postcode instead of lat/lng
- `radius_km` (integer): Radius in km (default 50, max 300)
- `scheduled` (string): 1 = scheduled passenger service only
- `type` (string): large | medium | small | heliport | …

### `airports__runways` (~76 tokens)

Airports Worldwide: Runways

An airport's runways: length, width, surface, lighting and each end's identifier, heading and elevation. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `code` (string, required): ICAO (EGLL), IATA (LHR) or OurAirports ident

### `airports__frequencies` (~72 tokens)

Airports Worldwide: Radio frequencies

An airport's radio frequencies (tower, ground, ATIS, approach…) in MHz. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `code` (string, required): ICAO (EGLL), IATA (LHR) or OurAirports ident

### `airports__country` (~55 tokens)

Airports Worldwide: Airports in a country

Airport counts by type, the large airports and the regions for a country. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `country` (string, required): 2-letter country code

### `airports__navaids-near` (~125 tokens)

Airports Worldwide: Navaids near a point

VORs, NDBs, DMEs and other navaids within a radius of a point, with frequency and associated airport. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `lat` (string): Latitude (or give a UK postcode)
- `limit` (integer): Max results (default 20)
- `lng` (string): Longitude
- `postcode` (string): UK postcode instead of lat/lng
- `radius_km` (integer): Radius in km (default 50)

### `london-transport__tube-status` (~39 tokens)

London Transport: Tube status

Live status of every Tube line. A few free samples a day, then $0.001 USDC per call via x402.

### `london-transport__mode-status` (~65 tokens)

London Transport: Status by mode

Live status of every line for a mode (tube, overground, elizabeth-line, dlr, tram, bus). A few free samples a day, then $0.001 USDC per call via x402.

Input parameters:

- `mode` (string, required): Mode

### `london-transport__line-status` (~64 tokens)

London Transport: Line status

Live status and disruption for one line. A few free samples a day, then $0.001 USDC per call via x402.

Input parameters:

- `line` (string, required): Line id, e.g. "victoria", "elizabeth", "northern"

### `london-transport__line-arrivals` (~67 tokens)

London Transport: Line arrivals

Live arrival predictions for every stop on a line. A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `line` (string, required): Line id, e.g. "victoria", "elizabeth", "northern"

### `london-transport__stop-arrivals` (~71 tokens)

London Transport: Stop arrivals

Live arrival predictions at a stop or station. A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `stop` (string, required): StopPoint id (NaPTAN), e.g. "940GZZLUOXC" (Oxford Circus)

### `london-transport__stop-search` (~47 tokens)

London Transport: Search stops

Find stations and stops by name. A few free samples a day, then $0.001 USDC per call via x402.

Input parameters:

- `q` (string, required): Name

### `london-transport__stop` (~72 tokens)

London Transport: Stop details

Lines, modes, facilities and child stops of a station. A few free samples a day, then $0.001 USDC per call via x402.

Input parameters:

- `stop` (string, required): StopPoint id (NaPTAN), e.g. "940GZZLUOXC" (Oxford Circus)

### `london-transport__stops-near` (~73 tokens)

London Transport: Stops near a point

Stations and stops within a radius of a point. A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `lat` (string, required): Latitude
- `lon` (string, required): Longitude
- `radius` (integer): Metres (default 200)

### `london-transport__journey` (~65 tokens)

London Transport: Plan a journey

Journey options between two places (postcodes, stop ids or "lat,lon"). A few free samples a day, then $0.003 USDC per call via x402.

Input parameters:

- `from` (string, required): Origin
- `to` (string, required): Destination

### `london-transport__bike-points` (~46 tokens)

London Transport: Cycle docks

Every Santander Cycles docking station with live bike and space counts. A few free samples a day, then $0.002 USDC per call via x402.

### `london-transport__bike-point` (~55 tokens)

London Transport: Cycle dock

Live bikes, e-bikes and empty docks at one station. A few free samples a day, then $0.001 USDC per call via x402.

Input parameters:

- `id` (string, required): BikePoint id

### `london-transport__road-status` (~40 tokens)

London Transport: Road corridor status

Live status of major London road corridors. A few free samples a day, then $0.001 USDC per call via x402.

### `london-transport__road-disruption` (~60 tokens)

London Transport: Road disruptions

Current disruption on a road corridor, e.g. "a2", "a406". A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `road` (string, required): Road id

### `london-transport__air-quality` (~41 tokens)

London Transport: Air quality forecast

London air quality forecast for today and tomorrow. A few free samples a day, then $0.001 USDC per call via x402.

### `uk-road-safety__near` (~158 tokens)

UK Road Collisions: Collisions near a point

Reported collisions within a radius (default 500 m, max 2 km) of a UK postcode or point over the last five years: totals by severity and year, and the most recent collisions with road, speed limit, light and weather. A few free samples a day, then $0.003 USDC per call via x402.

Input parameters:

- `lat` (string): Latitude
- `limit` (integer): Recent collisions to list (default 20)
- `lng` (string): Longitude
- `postcode` (string): UK postcode (or give lat and lng)
- `radius_m` (integer): Radius in metres (default 500, max 2000)
- `year` (integer): One year only

### `uk-road-safety__local-authority` (~92 tokens)

UK Road Collisions: Collisions in a local authority

Five-year (or one-year) collision totals for a local authority district by severity and year, road class, speed limit, light, weather, surface and urban/rural. A few free samples a day, then $0.003 USDC per call via x402.

Input parameters:

- `code` (string, required): ONS local authority district code
- `year` (integer): One year only

### `uk-road-safety__lsoa` (~79 tokens)

UK Road Collisions: Collisions in a small area

Collisions in a 2021 LSOA (neighbourhood of ~1,500 people) over five years, with the 50 most recent. A few free samples a day, then $0.002 USDC per call via x402.

Input parameters:

- `code` (string, required): LSOA 2021 code

### `uk-road-safety__collision` (~65 tokens)

UK Road Collisions: Collision by id

One reported collision by its STATS19 index: date, time, severity, vehicles, casualties, road and conditions. A few free samples a day, then $0.001 USDC per call via x402.

Input parameters:

- `id` (string, required): Collision index

### `tides__stations-near` (~97 tokens)

US Tides & Water Levels: Tide stations near a point

NOAA tide-prediction stations within a radius (default 50 km) of a point, nearest first. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `lat` (string, required): Latitude
- `limit` (integer): Max results (default 10)
- `lng` (string, required): Longitude
- `radius_km` (integer): Radius in km (default 50)

### `tides__search` (~59 tokens)

US Tides & Water Levels: Find tide stations

Search NOAA tide stations by name and/or state. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `name` (string): Station name contains
- `state` (string): 2-letter state

### `tides__station` (~56 tokens)

US Tides & Water Levels: Tide station details

A station's location, time zone, products offered and tidal datums. Free within the daily allowance, then $0.001 USDC per call via x402.

Input parameters:

- `station` (string, required): NOAA CO-OPS station id

### `tides__predictions` (~121 tokens)

US Tides & Water Levels: High and low tides

Predicted high and low tide times (local) and heights for up to 7 days from today. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `datum` (string): MLLW (default) | MLW | MSL | MHW | MHHW | NAVD
- `days` (integer): Days (1–7, default 2)
- `station` (string, required): NOAA CO-OPS station id
- `units` (string): metric (default) | english

### `tides__water-level` (~122 tokens)

US Tides & Water Levels: Observed water level

Observed 6-minute water levels for the last hours (default 6, max 72) with the latest reading. Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `datum` (string): MLLW (default) | MLW | MSL | MHW | MHHW | NAVD
- `hours` (integer): Hours back (default 6)
- `station` (string, required): NOAA CO-OPS station id
- `units` (string): metric (default) | english

### `tides__conditions` (~75 tokens)

US Tides & Water Levels: Station conditions now

Latest water temperature, air temperature, wind and air pressure reported at a station (whichever it measures). Free within the daily allowance, then $0.002 USDC per call via x402.

Input parameters:

- `station` (string, required): NOAA CO-OPS station id
- `units` (string): metric (default) | english

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/si-fourzerotwo-transport/mcp-v-transport#diagnostics

## Score history

- 2026-10-22: 78
- 2026-10-21: 77
- 2026-10-20: 77
- 2026-10-19: 76
- 2026-10-18: 76
- 2026-10-17: 75
- 2026-10-16: 75
- 2026-10-15: 74
- 2026-10-14: 74
- 2026-10-13: 73
- 2026-10-12: 73

## Common questions

### What is the Transport & travel MCP server?

Transport & travel is an MCP server listed in the public MCP registry as si.fourzerotwo/transport. Airports, runways and frequencies worldwide, tides, UK road collisions and London transport. This page covers its hosted endpoint (https://fourzerotwo.si/mcp/v/transport).

### Is the Transport & travel MCP server safe to use?

Transport & travel scores 78 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 Transport & travel MCP server expose?

Transport & travel exposes 31 tools: airports__airport, airports__search, airports__near, airports__runways, airports__frequencies, and 26 more. Their descriptions and schemas cost roughly 2,410 tokens of context every time the server is loaded.

### Does the Transport & travel MCP server require authentication?

No. We connected to Transport & travel without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Transport & travel MCP server still maintained?

Transport & travel is still listed as active in the MCP registry. We last reached this channel on 22 October 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://fourzerotwo.si/mcp/v/transport
- Website: https://fourzerotwo.si/
- Changelog RSS feed: https://verifymcp.io/servers/si-fourzerotwo-transport/mcp-v-transport.xml
- Changelog JSON feed: https://verifymcp.io/servers/si-fourzerotwo-transport/mcp-v-transport.json
- HTML version of this page: https://verifymcp.io/servers/si-fourzerotwo-transport/mcp-v-transport