{
  "updated": "2026-11-11",
  "countries": 250,
  "tier1": 20,
  "tier2": 73,
  "tier3": 157,
  "sources": [
    {
      "name": "Debian iso-codes",
      "version": "v4.20.1",
      "url": "https://salsa.debian.org/iso-codes-team/iso-codes/-/raw/v4.20.1/data/iso_3166-1.json",
      "license": "LGPL-2.1-or-later",
      "license_url": "https://salsa.debian.org/iso-codes-team/iso-codes/-/blob/v4.20.1/LICENSES/LGPL-2.1-or-later.txt",
      "fields": [
        "iso2",
        "iso3",
        "numeric",
        "name",
        "common_name"
      ]
    },
    {
      "name": "World Bank country metadata API",
      "url": "https://api.worldbank.org/v2/country?format=json&per_page=400",
      "license": "CC BY 4.0",
      "license_url": "https://datacatalog.worldbank.org/public-licenses",
      "fields": [
        "income_group",
        "income_code",
        "region",
        "region_code"
      ]
    },
    {
      "name": "European Union, EU countries",
      "url": "https://european-union.europa.eu/principles-countries-history/eu-countries_en",
      "license": "CC BY 4.0 (europa.eu legal notice)",
      "license_url": "https://european-union.europa.eu/legal-notice_en",
      "fields": [
        "eu_member"
      ]
    },
    {
      "name": "Eurostat glossary, European Economic Area",
      "url": "https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Glossary:European_Economic_Area_(EEA)",
      "license": "CC BY 4.0 (europa.eu legal notice)",
      "license_url": "https://european-union.europa.eu/legal-notice_en",
      "fields": [
        "eea_member"
      ]
    },
    {
      "name": "European Commission, outermost regions",
      "url": "https://regions-and-cities.ec.europa.eu/policy/themes/outermost-regions",
      "license": "CC BY 4.0 (europa.eu legal notice)",
      "license_url": "https://european-union.europa.eu/legal-notice_en",
      "fields": [
        "eu_territory"
      ]
    },
    {
      "name": "Treaty on the Functioning of the European Union, Article 355(4)",
      "url": "https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:12016E355",
      "fields": [
        "eu_territory"
      ]
    },
    {
      "name": "Moonetix Academy, Tier 1, 2 and 3 countries",
      "url": "https://moonetix.com/academy/glossary/tier-1-2-3-countries",
      "fields": [
        "tier",
        "tier_basis",
        "alt_tiers"
      ]
    }
  ]
}