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.
Available components
Last scanned (1 hour ago)
Scores higher than 53% of npm servers
Category Maps and Location
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. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 94 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (ISC).Pass
- Actively maintained (last published 39 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability69
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1749 tokens (~194/item across 9 items; 9 tools + 0 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 Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "getFlightTransferInfo" implies "transfer" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 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.
- 30 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
- 29 Oct 26 0
- Security disclosure: fail → unverified ▼ functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 21 Oct 26 0
- Stability: 0.97 → pass security
- 20 Oct 26 0
- Stability: pass → 0.97 functional
- 17 Oct 26 +2
- Stability: 0.83 → pass security
- 15 Oct 26 −2
- Stability: pass → 0.80 functional
- 14 Oct 26 0
- Stability: 0.97 → pass security
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 · Analysed npm/@variflight-ai/variflight-mcp@1.1.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 94 packages
| Packages resolved | 94 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
flightHappinessIndex ~198
Use this tool when the user wants comfort-focused details for a known flight, such as punctuality, aircraft type, cabin configuration, seat comfort, meals, entertainment, or other onboard experience details. This tool works best when a specific flight number and date are already known. Do not use it for fare search, itinerary recommendation, or raw price comparison.
| Name | Type | Req | Description |
|---|---|---|---|
| arr | string | – | Arrival airport IATA 3-letter code (e.g. CAN for Guangzhou) |
| date | string | yes | Flight date in YYYY-MM-DD format. IMPORTANT: If the user input contains only month and day, use getTodayDate to determine the year. For today's date, use getTodayDate instead of hardcoding. |
| dep | string | – | Departure airport IATA 3-letter code (e.g. HFE for Hefei) |
| fnum | string | yes | Flight number including airline code (e.g. MU2157, CZ3969) |
No output schema declared.
No examples provided.
getFlightPriceByCities ~240
Use this tool when the user needs structured raw pricing data. It returns sale flights between two cities as a list of flights, and each flight contains cabin entries with prices. This is better than searchFlightItineraries when the caller needs per-flight, per-cabin price details instead of a natural-language recommendation summary. All city codes must be valid IATA 3-letter codes (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei).
| Name | Type | Req | Description |
|---|---|---|---|
| arr_city | string | yes | Arrival city 3-letter code (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei) |
| dep_city | string | yes | Departure city 3-letter code (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei) |
| dep_date | string | yes | Departure date in YYYY-MM-DD format, for example 2026-04-20. IMPORTANT: If the user input contains only month and day, use getTodayDate to determine the year. For today's date, use getTodayDate inste… |
No output schema declared.
No examples provided.
getFlightTransferInfo ~288
Search connecting flight options between a departure city and an arrival city on a specific date. Use city IATA 3-letter codes such as BJS, SHA, or LAX. This tool is for transfer or connection itineraries between cities, not for airport weather, airport facilities, or realtime tracking. Date must be in YYYY-MM-DD format. For today's date, use getTodayDate instead of hardcoding.
| Name | Type | Req | Description |
|---|---|---|---|
| arrcity | string | yes | Arrival city IATA 3-letter code (e.g. SHA for Shanghai, LAX for Los Angeles) |
| depcity | string | yes | Departure city IATA 3-letter code (e.g. BJS for Beijing, CAN for Guangzhou) |
| depdate | string | yes | Departure date in YYYY-MM-DD format. IMPORTANT: If the user input contains only month and day, use getTodayDate to determine the year. For today's date, use getTodayDate instead of hardcoding. |
| detail | string | – | Optional. 'summary' returns only the core fields of each result; 'full' returns every field. Defaults to 'full'. |
| limit | integer | – | Optional. Maximum number of results to return. Omit to return all results. |
| offset | integer | – | Optional. Number of results to skip, for fetching the next page. Use next_offset from the previous response. Each page is a separate billed call. |
No output schema declared.
No examples provided.
getFutureWeatherByAirport ~87
Get the 3-day airport weather forecast for today, tomorrow, and the day after tomorrow by airport IATA 3-letter code, such as PEK, SHA, CAN, or HFE.
| Name | Type | Req | Description |
|---|---|---|---|
| airport | string | yes | Airport IATA 3-letter code (e.g. PEK for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei) |
No output schema declared.
No examples provided.
getRealtimeLocationByAnum ~106
Get realtime flight location by aircraft registration number, also called tail number, such as B2021 or B2022. Use this only when the aircraft registration number is known. If the registration number is unknown, first try to find the flight through searchFlightsByNumber and then use the aircraft registration number from that result.
| Name | Type | Req | Description |
|---|---|---|---|
| anum | string | yes | Aircraft registration number, also called tail number, such as B2021, B2022, or B2023. |
No output schema declared.
No examples provided.
getTodayDate ~50
Get today's date in local timezone (YYYY-MM-DD format). Use this tool whenever you need today's date - NEVER hardcode dates.
| Name | Type | Req | Description |
|---|---|---|---|
| random_string | string | – | Optional placeholder parameter. Normally omit it. |
No output schema declared.
No examples provided.
searchFlightItineraries ~222
Use this tool when the user wants a concise recommended itinerary summary in natural language. It returns a text-style result that summarizes how many sale flights match, the overall lowest price, the shortest duration, and several recommended options. Use city IATA 3-letter codes only. If the user instead needs structured raw flight pricing data with each flight and cabin price, use getFlightPriceByCities.
| Name | Type | Req | Description |
|---|---|---|---|
| arrCityCode | string | yes | Arrival city 3-letter code (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei) |
| depCityCode | string | yes | Departure city 3-letter code (e.g. BJS for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei) |
| depDate | string | yes | Departure date in YYYY-MM-DD format, for example 2025-07-04. IMPORTANT: If the user input contains only month and day, use getTodayDate to determine the year. For today's date, use getTodayDate inste… |
No output schema declared.
No examples provided.
searchFlightsByDepArr ~363
Search direct flights by departure and arrival location plus date. Use depcity and arrcity when the user specifies cities such as BJS or SHA. Use dep and arr when the user specifies exact airports such as PEK or PVG. Provide one departure field and one arrival field, and do not mix city and airport codes for the same side. All codes must be valid IATA 3-letter codes. Date must be in YYYY-MM-DD format. For today's date, use getTodayDate instead of hardcoding.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | Flight date in YYYY-MM-DD format. IMPORTANT: If the user input contains only month and day, use getTodayDate to determine the year. For today's date, use getTodayDate 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) |
| detail | string | – | Optional. 'summary' returns only the core fields of each result; 'full' returns every field. Defaults to 'full'. |
| limit | integer | – | Optional. Maximum number of results to return. Omit to return all results. |
| offset | integer | – | Optional. Number of results to skip, for fetching the next page. Use next_offset from the previous response. Each page is a separate billed call. |
No output schema declared.
No examples provided.
searchFlightsByNumber ~195
Search a flight by flight number and date. The flight number must include the airline code, for example MU2157 or CZ3969. dep and arr are optional and should only be provided when the exact airports are known. Date must be in YYYY-MM-DD format. For today's date, use getTodayDate instead of hardcoding.
| Name | Type | Req | Description |
|---|---|---|---|
| arr | string | – | Arrival airport IATA 3-letter code (e.g. CAN for Guangzhou) |
| date | string | yes | Flight date in YYYY-MM-DD format. IMPORTANT: If the user input contains only month and day, use getTodayDate to determine the year. For today's date, use getTodayDate instead of hardcoding. |
| dep | string | – | Departure airport IATA 3-letter code (e.g. HFE for Hefei) |
| fnum | string | yes | Flight number including airline code (e.g. MU2157, CZ3969) |
No output schema declared.
No examples provided.
How do I install the io.github.variflight/variflight-mcp server?
io.github.variflight/variflight-mcp runs locally as an npm package, launched with npx -y @variflight-ai/variflight-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @variflight-ai/variflight-mcp
claude mcp add variflight-variflight-mcp -- npx -y @variflight-ai/variflight-mcp
What is the io.github.variflight/variflight-mcp server?
io.github.variflight/variflight-mcp is listed in the public MCP registry as io.github.variflight/variflight-mcp. VariFlight's official MCP server provides tools to query flight, weather, comfort, and fare data. This page covers its npm package (@variflight-ai/variflight-mcp).
Is the io.github.variflight/variflight-mcp server safe to use?
io.github.variflight/variflight-mcp scores 76 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. 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 io.github.variflight/variflight-mcp server expose?
io.github.variflight/variflight-mcp exposes 9 tools: searchFlightsByDepArr, searchFlightsByNumber, getFlightTransferInfo, flightHappinessIndex, getRealtimeLocationByAnum, and 4 more. Their descriptions and schemas cost roughly 1,749 tokens of context every time the server is loaded.
Is the io.github.variflight/variflight-mcp server still maintained?
io.github.variflight/variflight-mcp 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.
What licence is the io.github.variflight/variflight-mcp server under?
io.github.variflight/variflight-mcp declares the ISC licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.