Country Info

Get country data — population, languages, currencies, capital, flag, and more using REST Countries API.

Category: education

API Key Required: No

When to use

• User asks about a country (population, capital, language, currency)
• User wants to compare countries
• User asks "what currency does X use?" or "what language do they speak in X?"

How it works

Base URL: https://restcountries.com/v3.1

1. Search by name

curl -s "https://restcountries.com/v3.1/name/france"

2. Get by country code

curl -s "https://restcountries.com/v3.1/alpha/GB"

3. Filter specific fields (reduce response size)

curl -s "https://restcountries.com/v3.1/name/japan?fields=name,capital,population,currencies,languages,flags"

4. Search by currency

curl -s "https://restcountries.com/v3.1/currency/eur"

5. Search by language

curl -s "https://restcountries.com/v3.1/lang/spanish"

6. Get all countries in a region

curl -s "https://restcountries.com/v3.1/region/europe?fields=name,capital,population"

Regions: africa, americas, asia, europe, oceania.

Examples

User: "Tell me about Japan"

→ Query by name. Reply with capital, population, languages, currency, region, flag emoji.

User: "What countries use the Euro?"

→ Query by currency/eur. List the countries.

Constraints

• Free, no key needed, no strict rate limit
• Country names are flexible (partial matches work)
• Some fields are deeply nested — parse carefully