The World Bank Indicators API provides access to nearly 16,000 development indicators across 200+ countries and territories. Data covers GDP, population, poverty, education, health, trade, environment, infrastructure, and more, with time series spanning decades. No authentication is required. Data is freely available under CC BY 4.0 license.
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You can query country-level indicator data by country code and indicator code with date range filtering (country/{code}/indicator/{code}), browse country metadata, and search the full indicator catalog. Common indicators include GDP, GDP per capita, population, life expectancy, unemployment rate, inflation, CO2 emissions, and access to electricity.
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