I am building an app on the free Airports dataset from Spatibase. Use the Spatibase Content Delivery API as the data source. It is read-only and returns published content only.

Project
- Project id: f7f53b91-4e86-4a73-9f50-70f4bff43652
- API base URL: https://api.spatibase.com/delivery/v1/projects/f7f53b91-4e86-4a73-9f50-70f4bff43652
- Access: public. No key is needed, and the API can be called straight from the browser.

The dataset
- Airports, a free public dataset: https://spatibase.com/datasets/airports/
- Licence: Public domain (https://ourairports.com/data/#data-license). No attribution required; a credit is appreciated.
- Good to know about the data: Not for navigation. Provided as is, without warranty. Do not use it for flight planning or anything safety-critical.
- Fields (the keys under "fields" in an entry):
  - title (text): Airport name, for example Václav Havel Airport Prague
  - ident (identifier): OurAirports identifier, unique; mostly the ICAO code, for example LKPR
  - iata_code (text): IATA code (3 letters); empty for airports without one, for example PRG
  - icao_code (text): ICAO code (4 characters); may be empty, for example LKPR
  - gps_code (text): GPS code, for example LKPR
  - local_code (text): Code used locally
  - airport_type (choice): large_airport, medium_airport, small_airport or seaplane_base, for example large_airport
  - scheduled_service (boolean): Has scheduled airline service, for example true
  - elevation_ft (number): Elevation in feet, for example 1247
  - continent (choice): AF, AN, AS, EU, NA, OC or SA, for example EU
  - country_code (text): ISO 3166-1 alpha-2 country code, for example CZ
  - country (text): Country name, for example Czechia
  - region_code (text): ISO 3166-2 region code, for example CZ-10
  - region (text): Region name, for example Praha
  - municipality (text): Town or city served, for example Prague
  - website (link): Airport website, for example https://www.prg.aero/
  - wikipedia (link): Wikipedia article, for example https://en.wikipedia.org/wiki/Václav_Havel_Airport_Prague
- Filters that work here, for example: filter[continent]=EU, filter[iata_code]=PRG, filter[airport_type]=large_airport, near=<lng>,<lat>&radius=<metres>&sort=distance, bbox=<minLng>,<minLat>,<maxLng>,<maxLat>, q=<name search>
- This public copy is shared and read-only. To add my own data or fields, or for a busy app, I copy it into my own project: https://app.spatibase.com/signup?dataset=airports&ref=ds-airports

Read these first
- This project's typed OpenAPI file, with my real field names and types: https://api.spatibase.com/delivery/v1/projects/f7f53b91-4e86-4a73-9f50-70f4bff43652/openapi.json
- The general OpenAPI file of the API: https://api.spatibase.com/delivery/v1/openapi.json
- The docs, written for AI agents: https://spatibase.com/llms.txt (every docs page is also Markdown, for example https://spatibase.com/docs/reference/delivery-api.md)
Generate TypeScript types or a typed client from the typed OpenAPI file before writing app code. Take field names from it, never guess them.

Endpoints (all GET, relative to the base URL)
- /entries: entries as JSON, paged (limit up to 500). Filters: type, group, q (title search), filter[<field>]=value or filter[<field>][<op>]=value (eq, ne, gt, gte, lt, lte, in, contains, exists), bbox, near + radius (meters), sort (for example title, -publishedAt, distance), include=references
- /entries.geojson: the same entries and filters as a GeoJSON FeatureCollection (up to 5000)
- /entries/<entryId>: one entry
- /tiles.json: TileJSON for vector tiles (tiles at /tiles/{z}/{x}/{y}.pbf, one layer "entries"; filters type, subtypes, group)
- /types, /groups, /groups/<groupKey> (entries in the order I arranged them), /feature-types

Good to know
- An entry has id, type, title, geometry (GeoJSON, can be null) and fields keyed by each field's API key.
- Image URLs are absolute; add ?w=800&fmt=webp to get a resized image.
- Responses are cacheable (ETag and 304; about a minute in the browser, up to five minutes at the CDN). CORS is open. Errors look like { "error": { "code", "message" } }.
- For maps, use MapLibre GL JS with the vector tiles or the GeoJSON, or Leaflet with the GeoJSON.
- Regenerate the types when I tell you I changed my content model.