Ross ROSS = Recommend OSS · open-source software intelligence for agents

countries/countries

All sorts of useful information about every country packaged as convenient little country objects. It includes data from ISO 3166 (countries and states/subdivisions ), ISO 4217 (currency), and E.164 (phone numbers). observed · 2026-08-28

github.com/countries/countries · Ruby · MIT (permissive) observed · 2026-08-28

Health v2 · maintenance only

78/100

  • Activity 89
  • Release rhythm 52
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: 44.5
  • age_days: 6102
  • days_rel: 243
  • days_push: 67
  • n_releases_24m: 9

Full methodology

Adoption not part of the score

2359 stars · 682 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Ruby gem providing country objects with data from ISO 3166 (countries and subdivisions), ISO 4217 (currencies), and E.164 (phone numbers). It offers attribute-based finder methods to look up countries by name, code, region, and other attributes.

Use cases

  • get country names and codes for a dropdown in a rails app
  • look up a country's currency by ISO code
  • find countries by region or translated name
  • validate and map phone number country codes
  • get states and subdivisions for a country
  • populate country data in a form

When to avoid

  • you need country data in a non-Ruby language (use the YAML/JSON data repos instead)
  • you need geolocation or IP-to-country resolution
  • you need frequently changing geopolitical data beyond ISO standards

Facets

library · maturity active

sdk data-science internationalization developer-tools apis ruby cross-platform iso3166 iso4217 e164 country-data currency phone-numbers subdivisions gem localization

1 source

Member repositories

RepositoryRoleHealth v2
countries/countriesmain78

For agents

markdown · JSON · MCP: product_card(name="countries/countries")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem