Airport Code Converter Skill

Overview

Airport Code Converter automatically detects whether you've submitted an IATA or ICAO code based on length, then returns the corresponding code in the other format. Uses a comprehensive database of 40,000+ airports worldwide.

Live Test Airport Code Converter Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as AirportCodeConverterSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

Tool call

{
  "name": "AirportCodeConverterSkill",
  "arguments": {
    "code": "MCI"
  }
}

You do not name the tool yourself; the model picks it. Asking about MCI in the terms this skill covers is enough for it to reach for AirportCodeConverterSkill on its own — naming it explicitly also works, and is the way to force the call.

Connecting

One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervekit": {
      "url": "https://api.vervekit.com/v1/mcp"
    }
  }
}

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

Argument	Type	Description
`code`Required	string	The airport code to convert (IATA: 3 letters, ICAO: 4 letters)

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

Result

{
  "status": "ok",
  "error": null,
  "data": {
    "input": "MCI",
    "inputType": "IATA",
    "iata": "MCI",
    "icao": "KMCI",
    "name": "Kansas City International Airport",
    "city": "Kansas City",
    "state": "Missouri",
    "country": "US",
    "elevation": 1026,
    "latitude": 39.2976,
    "longitude": -94.7139,
    "timezone": "America/Chicago",
    "found": true
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Field	Type	Example	Description
`input`	string	`MCI`	Original airport code provided in request
`inputType`	string	`IATA`	Detected input code format (IATA or ICAO)
`iata`	string	`MCI`	Three-letter IATA airport code
`icao`	string	`KMCI`	Four-letter ICAO airport code
`name`	string	`Kansas City International Airport`	Official airport name
`city`	string	`Kansas City`	City where airport is located
`state`	string	`Missouri`	State or province where airport is located
`country`	string	`US`	Country code (ISO 3166-1 alpha-2)
`elevation`Premium	number	`1026`	Airport elevation in feet above sea level
`latitude`Premium	number	`39.2976`	Airport latitude coordinate
`longitude`Premium	number	`-94.7139`	Airport longitude coordinate
`timezone`Premium	string	`America/Chicago`	Airport timezone (e.g., America/Chicago)
`found`	boolean	`true`	Whether airport code was found in database

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

Status	What it means
`400` / `422`	The arguments did not validate. The message names the offending one.
`401`	The OAuth session is invalid or expired — reconnect the server.
`403`	Blocked by a key restriction or an IP allow-list. Never a bad identity.
`404`	This skill is not part of VerveKit. Check the catalog.
`429`	Out of credits, or a brief rate limit. The message tells them apart.

A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Flight Systems: Convert between IATA and ICAO codes for flight booking systems and aviation applications
Data Integration: Normalize airport codes when integrating data from different aviation sources
Travel Apps: Display both IATA and ICAO codes to users for comprehensive airport identification

Other ways to use Airport Code Converter Skill

Set up Airport Code Converter Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.

Call it as a REST APIOne HTTPS endpoint and an x-api-key header, with SDKs for Node, Python and .NET.APIVerve →Reference →

Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.VerveSheets →Reference →

Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.VerveContext →Reference →