# io.github.variflight/variflight-mcp (npm · @variflight-ai/variflight-mcp)

VariFlight's official MCP server provides tools to query flight, weather, comfort, and fare data.

- Trust score: 60/100 (medium)
- Change this week: +16
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@variflight-ai/variflight-mcp`: 60/100 (this document), [markdown](https://verifymcp.io/servers/variflight-variflight-mcp/variflight-ai-variflight-mcp.md), [page](https://verifymcp.io/servers/variflight-variflight-mcp/variflight-ai-variflight-mcp)

## Channel facts

- Registry: `npm`
- Package: `@variflight-ai/variflight-mcp`
- Version: `1.0.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (96 of 100), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (96 of 100), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (ISC).
  - Actively maintained (last published 104 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 49/100
  - AI-judged instruction clarity (fair).
  - Context-footprint check failed: tool/resource definitions use about 1282 tokens (~160/item across 8 items; 8 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### Claude

```bash
claude mcp add variflight-variflight-mcp -- npx -y @variflight-ai/variflight-mcp
```

### Codex

```bash
codex mcp add variflight-variflight-mcp -- npx -y @variflight-ai/variflight-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "variflight-variflight-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@variflight-ai/variflight-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add variflight-variflight-mcp --command npx --arg -y --arg @variflight-ai/variflight-mcp
```

### Hermes

```yaml
mcp_servers:
  variflight-variflight-mcp:
    command: "npx"
    args: ["-y", "@variflight-ai/variflight-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "variflight-variflight-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@variflight-ai/variflight-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-08-02 (score 60, +36)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Capabilities: pass → unverified
- [functional improvement] License: unverified → pass
- [functional improvement] Schema quality: unverified → fair
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional] Licence: ISC

### 2026-08-01 (score 24, +5)

- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] MCP protocol: unverified → pass

### 2026-07-31 (score 19, −25)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-27 (score 44)

First indexed and scored.

## MCP tools (8)

### `searchFlightsByDepArr` (~256 tokens)

Search for flights between airports or cities by date. For cities with multiple airports, use depcity and arrcity parameters; otherwise use dep and arr parameters. Date must be in YYYY-MM-DD format. For today's date, use the getTodayDate tool. All airport/city codes must be valid IATA 3-letter codes (e.g.BJS for city of Beijing, PEK for Beijing Capital Airport).

Input parameters:

- `arr` (string): Arrival airport IATA 3-letter code (e.g. SHA for Shanghai, HFE for Hefei)
- `arrcity` (string): Arrival city IATA 3-letter code (e.g. SHA for Shanghai, BJS for Beijing)
- `date` (string, required): Flight date in YYYY-MM-DD format. IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate tool instead of hardcoding
- `dep` (string): Departure airport IATA 3-letter code (e.g. PEK for Beijing, CAN for Guangzhou)
- `depcity` (string): Departure city IATA 3-letter code (e.g. BJS for Beijing, CAN for Guangzhou)

### `searchFlightsByNumber` (~215 tokens)

Search flights by flight number and date. Flight number should include airline code (e.g. MU2157, CZ3969).  dep and arr are optional, keep empty if you don't know them. Date format: YYYY-MM-DD. IMPORTANT: For today's date, you MUST use getTodayDate tool instead of hardcoding any date. Airport codes (optional) should be IATA 3-letter codes.

Input parameters:

- `arr` (string): Arrival airport IATA 3-letter code (e.g. CAN for Guangzhou)
- `date` (string, required): Flight date in YYYY-MM-DD format. IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate tool instead of hardcoding
- `dep` (string): Departure airport IATA 3-letter code (e.g. HFE for Hefei)
- `fnum` (string, required): Flight number including airline code (e.g. MU2157, CZ3969)

### `getFlightTransferInfo` (~173 tokens)

Get flight transfer info by departure city and arrival city and departure date. Date format: YYYY-MM-DD. IMPORTANT: For today's date, you MUST use getTodayDate tool instead of hardcoding any date. Airport codes should be IATA 3-letter codes.

Input parameters:

- `arrcity` (string, required): Arrival airport IATA 3-letter code (e.g. SHA for Shanghai, LAX for Los Angeles)
- `depcity` (string, required): Departure airport IATA 3-letter code (e.g. BJS for Beijing, CAN for Guangzhou)
- `depdate` (string, required): Flight date in YYYY-MM-DD format. IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate tool instead of hardcoding

### `flightHappinessIndex` (~192 tokens)

using this tool when you need information related to following topics: Detailed flight comparisons (punctuality, amenities, cabin specs),Health safety protocols for air travel,Baggage allowance verification,Environmental impact assessments,Aircraft configuration visualization,Comfort-focused trip planning (seat dimensions, entertainment, food). etc.

Input parameters:

- `arr` (string): Arrival airport IATA 3-letter code (e.g. CAN for Guangzhou)
- `date` (string, required): Flight date in YYYY-MM-DD format. IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate tool instead of hardcoding
- `dep` (string): Departure airport IATA 3-letter code (e.g. HFE for Hefei)
- `fnum` (string, required): Flight number including airline code (e.g. MU2157, CZ3969)

### `getRealtimeLocationByAnum` (~85 tokens)

Get flight realtime location by aircraft number. aircraft number should be Aircraft registration numberlike B2021, B2022, B2023, etc. if aircraft number is unknown, you shuold try to request it using searchFlightsByNumber tool

Input parameters:

- `anum` (string, required): Aircraft number like B2021, B2022, B2023, etc.

### `getTodayDate` (~50 tokens)

Get today's date in local timezone (YYYY-MM-DD format). Use this tool whenever you need today's date - NEVER hardcode dates.

Input parameters:

- `random_string` (string): Dummy parameter for no-parameter tools

### `getFutureWeatherByAirport` (~108 tokens)

Get airport future weather for 3days (today、tomorrow、the day after tomorrow) by airport IATA 3-letter code. Airport codes should be IATA 3-letter codes (e.g. PEK for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei).

Input parameters:

- `airport` (string, required): Airport IATA 3-letter code (e.g. PEK for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei)

### `searchFlightItineraries` (~203 tokens)

Search for purchasable flight options and the lowest price using the departure city three-letter code, arrival city three-letter code, and departure date. (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei).

Input parameters:

- `arrCityCode` (string, required): Arrival city 3-letter code (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei)
- `depCityCode` (string, required): Departure city 3-letter code (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei)
- `depDate` (string, required): Departure city date (format: YYYY-MM-DD, e.g., 2025-07-04).IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate t…

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/variflight-variflight-mcp/variflight-ai-variflight-mcp#diagnostics

## Score history

- 2026-08-03: 60
- 2026-08-02: 60
- 2026-08-01: 24
- 2026-07-31: 19
- 2026-07-30: 44
- 2026-07-28: 44
- 2026-07-27: 44

## Links

- npm package: https://www.npmjs.com/package/@variflight-ai/variflight-mcp
- Socket report: https://socket.dev/npm/package/@variflight-ai/variflight-mcp
- Repository: https://github.com/variflight/variflight-mcp
- Changelog RSS feed: https://verifymcp.io/servers/variflight-variflight-mcp/variflight-ai-variflight-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/variflight-variflight-mcp/variflight-ai-variflight-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/variflight-variflight-mcp/variflight-ai-variflight-mcp