io.github.variflight/variflight-mcp
NPM · @VARIFLIGHT-AI/VARIFLIGHT-MCP · SCANNED SEP 20
VariFlight's official MCP server provides tools to query flight, weather, comfort, and fare data.
Available components
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 Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 97 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 152 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 1282 tokens (~160/item across 8 items; 8 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 Management90
- Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
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 8 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
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
{
"mcpServers": {
"variflight-variflight-mcp": {
"command": "npx",
"args": [
"-y",
"@variflight-ai/variflight-mcp"
]
}
}
} {
"servers": {
"variflight-variflight-mcp": {
"command": "npx",
"args": [
"-y",
"@variflight-ai/variflight-mcp"
]
}
}
} codex mcp add variflight-variflight-mcp -- npx -y @variflight-ai/variflight-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"variflight-variflight-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"@variflight-ai/variflight-mcp"
],
"enabled": true
}
}
} openclaw mcp add variflight-variflight-mcp --command npx --arg -y --arg @variflight-ai/variflight-mcp
mcp_servers:
variflight-variflight-mcp:
command: "npx"
args: ["-y", "@variflight-ai/variflight-mcp"] {
"McpServers": {
"variflight-variflight-mcp": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@variflight-ai/variflight-mcp"
]
}
}
} assistant mcp add variflight-variflight-mcp -t stdio -c npx -a -y @variflight-ai/variflight-mcp
{
"mcpServers": {
"variflight-variflight-mcp": {
"command": "npx",
"args": [
"-y",
"@variflight-ai/variflight-mcp"
]
}
}
} 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.
- 20 Sept 26 0
- Security disclosure: unverified → fail ▼ functional
- 19 Sept 26 +1
- Security disclosure: fail → unverified ▼ functional
- 17 Sept 26 −2
- Stability: pass → 0.80 functional
- 16 Sept 26 0
- Stability: 0.97 → pass security
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 −2
- Stability: pass → 0.80 functional
- 9 Sept 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 20 Sept 2026 · Analysed npm/@variflight-ai/variflight-mcp@1.0.1
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 →
Dependencies 97 packages
| Packages resolved | 97 |
|---|---|
| Stale | 31 |
| 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 ~192
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.
| 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 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 | yes | Flight number including airline code (e.g. MU2157, CZ3969) |
No output schema declared.
No examples provided.
getFlightTransferInfo ~173
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.
| Name | Type | Req | Description |
|---|---|---|---|
| arrcity | string | yes | Arrival airport IATA 3-letter code (e.g. SHA for Shanghai, LAX for Los Angeles) |
| depcity | string | yes | Departure airport IATA 3-letter code (e.g. BJS for Beijing, CAN for Guangzhou) |
| depdate | string | yes | 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 |
No output schema declared.
No examples provided.
getFutureWeatherByAirport ~108
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).
| 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 ~85
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
| Name | Type | Req | Description |
|---|---|---|---|
| anum | string | yes | Aircraft number like B2021, B2022, B2023, etc. |
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 | – | Dummy parameter for no-parameter tools |
No output schema declared.
No examples provided.
searchFlightItineraries ~203
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).
| 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 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… |
No output schema declared.
No examples provided.
searchFlightsByDepArr ~256
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).
| 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 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) |
No output schema declared.
No examples provided.
searchFlightsByNumber ~215
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.
| 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 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 | yes | Flight number including airline code (e.g. MU2157, CZ3969) |
No output schema declared.
No examples provided.
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 80 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 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 8 tools: searchFlightsByDepArr, searchFlightsByNumber, getFlightTransferInfo, flightHappinessIndex, getRealtimeLocationByAnum, and 3 more. Their descriptions and schemas cost roughly 1,282 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 20 September 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.