Offline global aviation reference: airports, runways, navaids, frequencies from OurAirports.
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Find airports within a radius of a latitude/longitude, ranked nearest-first by great-circle distance, each with its distance (km) and bearing (degrees true) from the query point. The grounding tool for "nearest airport to here" — pair it with a live aviation server to fetch weather or positions for the result. Takes a coordinate only: no geocoding, so resolve place names to lat/lon upstream first (e.g. an OpenStreetMap or Open-Meteo geocode tool). Closed airports are excluded unless include_closed is set. totalCount is the in-radius match count before limit; a capped result says so. OurAirports is community-edited — not authoritative for flight operations.
Query point latitude in decimal degrees (WGS84), −90 to 90.
Query point longitude in decimal degrees (WGS84), −180 to 180.
Restrict to one airport type (e.g. large_airport for major fields only).
Maximum airports to return (1–50). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20).
Search radius in kilometers (1–500). Defaults to 100.
Include airports of type "closed". Off by default.
Find airports within a radius of a latitude/longitude, ranked nearest-first by great-circle distance, each with its distance (km) and bearing (degrees true) from the query point. The grounding tool for "nearest airport to here" — pair it with a live aviation server to fetch weather or positions for the result. Takes a coordinate only: no geocoding, so resolve place names to lat/lon upstream first (e.g. an OpenStreetMap or Open-Meteo geocode tool). Closed airports are excluded unless include_closed is set. totalCount is the in-radius match count before limit; a capped result says so. OurAirports is community-edited — not authoritative for flight operations.
| Argument | Type | Description |
|---|---|---|
| type | string | Restrict to one airport type (e.g. large_airport for major fields only). |
| limit | integer | Maximum airports to return (1–50). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20). |
| latitude* | number | Query point latitude in decimal degrees (WGS84), −90 to 90. |
| longitude* | number | Query point longitude in decimal degrees (WGS84), −180 to 180. |
| radius_km | number | Search radius in kilometers (1–500). Defaults to 100. |
| include_closed | boolean | Include airports of type "closed". Off by default. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"latitude",
"longitude"
],
"properties": {
"type": {
"enum": [
"large_airport",
"medium_airport",
"small_airport",
"heliport",
"seaplane_base",
"balloonport",
"closed"
],
"type": "string",
"description": "Restrict to one airport type (e.g. large_airport for major fields only)."
},
"limit": {
"type": "integer",
"maximum": 50,
"minimum": 1,
"description": "Maximum airports to return (1–50). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20)."
},
"latitude": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Query point latitude in decimal degrees (WGS84), −90 to 90."
},
"longitude": {
"type": "number",
"maximum": 180,
"minimum": -180,
"description": "Query point longitude in decimal degrees (WGS84), −180 to 180."
},
"radius_km": {
"type": "number",
"default": 100,
"maximum": 500,
"minimum": 1,
"description": "Search radius in kilometers (1–500). Defaults to 100."
},
"include_closed": {
"type": "boolean",
"default": false,
"description": "Include airports of type \"closed\". Off by default."
}
},
"additionalProperties": false
}Find navigation aids (VOR, VOR-DME, DME, NDB, NDB-DME, TACAN, VORTAC) two ways: spatially, by passing latitude+longitude (with an optional radius_km); or relationally, by passing airport_code to get the navaids that serve that airport. Supply exactly one mode — both or neither is a validation error. Coordinate mode ranks nearest-first with distance (km) and bearing (degrees true). frequencyKhz is the stored value for every navaid type (a VOR on 114.5 MHz reads 114500); frequencyMhz carries the VHF frequency of a VOR or VOR-DME and the paired VHF frequency of a DME, TACAN, or VORTAC, and is null for NDB and NDB-DME, which are tuned in kHz. Each navaid also carries its DME paired frequency, usage class, power, and actual and slaved magnetic variation. totalCount is the match count before limit; a capped result says so. Airport mode returns an empty list (not an error) when the airport exists but has no associated navaids; an unknown airport_code is an error. When airport_code is also a code of other airports, a resolutionNote says which airport it resolved to and names the others by ident — pass that ident to query one of them. OurAirports is community-edited — not authoritative for flight operations.
| Argument | Type | Description |
|---|---|---|
| type | string | Restrict to one navaid type: NDB, VOR-DME, VORTAC, TACAN, VOR, DME, or NDB-DME. |
| limit | integer | Maximum navaids to return (1–50). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20). |
| latitude | number | Coordinate mode: query point latitude (−90 to 90). Provide with longitude; mutually exclusive with airport_code. |
| longitude | number |
Fetch the full record for one airport resolved by ANY code — IATA (SEA), ICAO (KSEA), GPS, national/local, or the OurAirports ident — with its runways and radio frequencies inline. The single `code` param is resolved case-insensitively across all five identifier spaces (priority: ident, then ICAO, IATA, GPS, local). The response always echoes the airport's complete code set and a resolutionNote naming which space matched; when other airports carry the same code, the note names each one (ident, country, code space) and why this airport won, so a wrong resolution is self-correcting — pass the other airport's ident to fetch it. Absent codes are reported as null, never an error. Runway lengths are the full runway surface (displaced thresholds and overruns included), not usable takeoff or landing distance. Closed airports always resolve. OurAirports is community-edited — not authoritative for flight operations.
| Argument | Type | Description |
|---|---|---|
| code* | string | Any airport code: IATA (SEA), ICAO (KSEA), GPS code, national/local code, or the OurAirports ident. Case-insensitive; surrounding whitespace is ignored. |
| include | array | Which related records to include inline. Defaults to both. Pass a subset to trim the response. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"code"
],
"properties": {
"code": {
"type": "string",
"minLength": 1,
"description": "Any airport code: IATA (SEA), ICAO (KSEA), GPS code, national/local code, or the OurAirports ident. Case-insensitive; surrounding whitespace is ignored."
},
"include": {
"type": "array",
"items": {
"enum": [
"runways",
"frequencies"
],
"type": "string"
},
"default": [
"runways",
"frequencies"
],
"description": "Which related records to include inline. Defaults to both. Pass a subset to trim the response."
}
},
"additionalProperties": false
}List countries and valid country/region filter codes for ourairports_search_airports and ourairports_search_runways, with airport counts excluding closed airports. Restrict to country for one country's regions; country and continent combine as AND. include_regions without a scope returns the entire region table, so prefer country for a one-country lookup. Unscoped and continent-only requests remain available.
| Argument | Type | Description |
|---|---|---|
| country | any | Country code from ourairports_list_countries (e.g. US). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid. |
| continent | string | Restrict to one continent: AF (Africa), AN (Antarctica), AS (Asia), EU (Europe), NA (North America), OC (Oceania), SA (South America). |
| include_regions | boolean | When true, nest each country's ISO 3166-2 regions (with airport counts) under it. Off by default to keep the response compact. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"country": {
"anyOf": [
{
"type": "string",
"const": ""
},
{
"type": "string",
"pattern": "^[A-Za-z]{2}$",
"description": "Two-letter country code."
}
],
"description": "Country code from ourairports_list_countries (e.g. US). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid."
},
"continent": {
"enum": [
"AF",
"AN",
"AS",
"EU",
"NA",
"OC",
"SA"
],
"type": "string",
"description": "Restrict to one continent: AF (Africa), AN (Antarctica), AS (Asia), EU (Europe), NA (North America), OC (Oceania), SA (South America)."
},
"include_regions": {
"type": "boolean",
"default": false,
"description": "When true, nest each country's ISO 3166-2 regions (with airport counts) under it. Off by default to keep the response compact."
}
},
"additionalProperties": false
}Search the bundled OurAirports corpus by free-text (name / municipality / keywords) and/or facets (country, region, type). Every query token must match (word order and partial words are handled). Returns ranked airport summaries — operational and larger airports first — each with its full code set and coordinates, ready to chain into ourairports_get_airport. Closed airports are excluded unless include_closed is set. Use ourairports_list_countries for valid country/region codes. For "nearest airport to a coordinate" use ourairports_find_airports instead. OurAirports is community-edited — not authoritative for flight operations.
| Argument | Type | Description |
|---|---|---|
| type | string | Restrict to one airport type: large_airport, medium_airport, small_airport, heliport, seaplane_base, balloonport, or closed. |
| limit | integer | Maximum airports to return (1–100). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20). |
| query | string | Free-text search over airport name, municipality, and keywords. Tokens are AND-matched. Omit to browse purely by facets. |
| region | any | Region code from ourairports_list_countries with include_regions (e.g. US-WA or KS-U-A). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid. |
| country | any | Country code from ourairports_list_countries (e.g. US). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid. |
Search runways across the whole bundled OurAirports corpus by attribute, joined back to their airports — the cross-airport counterpart to ourairports_get_airport (which returns runways for one already-known airport). Filter by airport facets (country, region, type) and runway facets (surface, min_length_ft, min_width_ft, lighted). Returns one flat {airport, runway} row per matching runway, so an airport with three matching runways contributes three rows. `surface` is a case-insensitive substring match against the raw upstream surface string, not an exact code — the runway surface must CONTAIN your text, so a shorter fragment matches more variants (no controlled vocabulary: "asp" matches ASP, ASPH, and Asphalt). Lengths are the full runway surface, including displaced thresholds and overruns — not usable takeoff or landing distance; each runway also reports its displaced threshold per end. A runway whose length or width is unknown is excluded when the matching min_*_ft filter is set — the data can never confirm it meets the threshold. Closed airports and closed runways are both excluded unless their include_* flag is set. Use ourairports_list_countries for valid country/region codes. OurAirports is community-edited — not authoritative for flight operations.
| Argument | Type | Description |
|---|---|---|
| type | string | Restrict to runways at airports of one type: large_airport, medium_airport, small_airport, heliport, seaplane_base, balloonport, or closed. |
| limit | integer | Maximum runway rows to return (1–100). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20). |
| region | any | Region code from ourairports_list_countries with include_regions (e.g. US-WA or KS-U-A). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid. |
| Coordinate mode: query point longitude (−180 to 180). Provide with latitude. |
| radius_km | number | Coordinate mode: search radius in kilometers (1–500). Defaults to 100. Ignored in airport mode. |
| airport_code | string | Airport mode: any airport code (IATA/ICAO/GPS/local/ident); returns the navaids serving that airport. Case-insensitive; surrounding whitespace is ignored. Mutually exclusive with latitude/longitude. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"type": {
"enum": [
"NDB",
"VOR-DME",
"VORTAC",
"TACAN",
"VOR",
"DME",
"NDB-DME"
],
"type": "string",
"description": "Restrict to one navaid type: NDB, VOR-DME, VORTAC, TACAN, VOR, DME, or NDB-DME."
},
"limit": {
"type": "integer",
"maximum": 50,
"minimum": 1,
"description": "Maximum navaids to return (1–50). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20)."
},
"latitude": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Coordinate mode: query point latitude (−90 to 90). Provide with longitude; mutually exclusive with airport_code."
},
"longitude": {
"type": "number",
"maximum": 180,
"minimum": -180,
"description": "Coordinate mode: query point longitude (−180 to 180). Provide with latitude."
},
"radius_km": {
"type": "number",
"default": 100,
"maximum": 500,
"minimum": 1,
"description": "Coordinate mode: search radius in kilometers (1–500). Defaults to 100. Ignored in airport mode."
},
"airport_code": {
"type": "string",
"minLength": 1,
"description": "Airport mode: any airport code (IATA/ICAO/GPS/local/ident); returns the navaids serving that airport. Case-insensitive; surrounding whitespace is ignored. Mutually exclusive with latitude/longitude."
}
},
"additionalProperties": false
}| include_closed | boolean | Include airports of type "closed". Off by default — closed airports pollute the live-flight grounding use case. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"type": {
"enum": [
"large_airport",
"medium_airport",
"small_airport",
"heliport",
"seaplane_base",
"balloonport",
"closed"
],
"type": "string",
"description": "Restrict to one airport type: large_airport, medium_airport, small_airport, heliport, seaplane_base, balloonport, or closed."
},
"limit": {
"type": "integer",
"maximum": 100,
"minimum": 1,
"description": "Maximum airports to return (1–100). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20)."
},
"query": {
"type": "string",
"description": "Free-text search over airport name, municipality, and keywords. Tokens are AND-matched. Omit to browse purely by facets."
},
"region": {
"anyOf": [
{
"type": "string",
"const": ""
},
{
"type": "string",
"pattern": "^[A-Za-z]{2}(-[A-Za-z0-9]{1,3}){1,2}$",
"description": "Region code with one or two segments."
}
],
"description": "Region code from ourairports_list_countries with include_regions (e.g. US-WA or KS-U-A). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid."
},
"country": {
"anyOf": [
{
"type": "string",
"const": ""
},
{
"type": "string",
"pattern": "^[A-Za-z]{2}$",
"description": "Two-letter country code."
}
],
"description": "Country code from ourairports_list_countries (e.g. US). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid."
},
"include_closed": {
"type": "boolean",
"default": false,
"description": "Include airports of type \"closed\". Off by default — closed airports pollute the live-flight grounding use case."
}
},
"additionalProperties": false
}| country | any | Country code from ourairports_list_countries (e.g. US). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid. |
| lighted | boolean | Filter by runway lighting: true for lighted runways only, false for unlighted only. Omit to include both. |
| surface | string | Surface filter — case-insensitive substring match against the raw upstream surface string (free text, no controlled vocabulary; ~654 distinct values). Match the literal text as recorded: "asp" matches ASP/ASPH/Asphalt/ASPH-G, "con" matches CON/Concrete, "turf" or "grs" for grass strips. A shorter fragment matches more variants; there is no enum or reference tool for surfaces. |
| min_width_ft | number | Minimum runway width in feet (inclusive). Runways with an unknown width are excluded when this is set, never assumed to pass. |
| min_length_ft | number | Minimum length of the full runway surface in feet (inclusive), matched against lengthFt — which includes displaced thresholds and overruns, so this is not a usable-distance filter. Runways with an unknown length are excluded when this is set, never assumed to pass. |
| include_closed_runways | boolean | Include runways flagged closed. Off by default. |
| include_closed_airports | boolean | Include runways at airports of type "closed". Off by default. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"type": {
"enum": [
"large_airport",
"medium_airport",
"small_airport",
"heliport",
"seaplane_base",
"balloonport",
"closed"
],
"type": "string",
"description": "Restrict to runways at airports of one type: large_airport, medium_airport, small_airport, heliport, seaplane_base, balloonport, or closed."
},
"limit": {
"type": "integer",
"maximum": 100,
"minimum": 1,
"description": "Maximum runway rows to return (1–100). Defaults to OURAIRPORTS_DEFAULT_SEARCH_LIMIT (20)."
},
"region": {
"anyOf": [
{
"type": "string",
"const": ""
},
{
"type": "string",
"pattern": "^[A-Za-z]{2}(-[A-Za-z0-9]{1,3}){1,2}$",
"description": "Region code with one or two segments."
}
],
"description": "Region code from ourairports_list_countries with include_regions (e.g. US-WA or KS-U-A). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid."
},
"country": {
"anyOf": [
{
"type": "string",
"const": ""
},
{
"type": "string",
"pattern": "^[A-Za-z]{2}$",
"description": "Two-letter country code."
}
],
"description": "Country code from ourairports_list_countries (e.g. US). Case-insensitive; surrounding whitespace is ignored. Literal empty string is unset; whitespace-only is invalid."
},
"lighted": {
"type": "boolean",
"description": "Filter by runway lighting: true for lighted runways only, false for unlighted only. Omit to include both."
},
"surface": {
"type": "string",
"minLength": 1,
"description": "Surface filter — case-insensitive substring match against the raw upstream surface string (free text, no controlled vocabulary; ~654 distinct values). Match the literal text as recorded: \"asp\" matches ASP/ASPH/Asphalt/ASPH-G, \"con\" matches CON/Concrete, \"turf\" or \"grs\" for grass strips. A shorter fragment matches more variants; there is no enum or reference tool for surfaces."
},
"min_width_ft": {
"type": "number",
"minimum": 0,
"description": "Minimum runway width in feet (inclusive). Runways with an unknown width are excluded when this is set, never assumed to pass."
},
"min_length_ft": {
"type": "number",
"minimum": 0,
"description": "Minimum length of the full runway surface in feet (inclusive), matched against lengthFt — which includes displaced thresholds and overruns, so this is not a usable-distance filter. Runways with an unknown length are excluded when this is set, never assumed to pass."
},
"include_closed_runways": {
"type": "boolean",
"default": false,
"description": "Include runways flagged closed. Off by default."
},
"include_closed_airports": {
"type": "boolean",
"default": false,
"description": "Include runways at airports of type \"closed\". Off by default."
}
},
"additionalProperties": false
}