| @unitedstates/congress-legislators | CC0 1.0 (photos: public domain, U.S. Government works) | Members of the United States Congress |
| @unitedstates/images (official congressional photos) | CC0 1.0 (photos: public domain, U.S. Government works) | Members of the United States Congress |
| Academy Awards database (oscars.org) | CC0 1.0 | Academy Award for Best Picture winners, Academy Award winners in the major categories |
| BLS CPI flat files | Public domain (U.S. Government work) | U.S. consumer price index (CPI-U) and inflation rate, monthly since 1913 |
| BLS Public Data API | Public domain (U.S. Government work) | U.S. unemployment rate, monthly since 1948 |
| ECB daily reference rates (XML) | ECB statistics: free reuse with source acknowledgement | Euro foreign exchange reference rates (ECB), latest day |
| ECB Data Portal — EXR.D.USD.EUR.SP00.A | ECB statistics: free reuse with source acknowledgement | Euro to U.S. dollar exchange rate (ECB), daily since 1999 |
| Ember — Yearly Electricity Data | CC BY 4.0 | Electricity generation mix by country |
| European Central Bank — euro foreign exchange reference rates | ECB statistics: free reuse with source acknowledgement | Euro foreign exchange reference rates (ECB), latest day |
| European Parliament Open Data Portal (API v2) | European Parliament reuse policy (reuse authorised, source must be acknowledged) | Members of the European Parliament |
| Federal Reserve Board — H.15 Selected Interest Rates | Public domain (Federal Reserve Board) | U.S. federal funds effective rate, monthly since 1954 |
| Federal Reserve Data Download Program (H.15) | Public domain (Federal Reserve Board) | U.S. federal funds effective rate, monthly since 1954 |
| GeoNames — cities15000 dump, countryInfo and admin1 codes | CC BY 4.0 | Cities of the world with 50,000+ people |
| GeoNames country codes (ISO 3166 alpha-2 to alpha-3) | Public domain (OurAirports); country codes CC BY 4.0 (GeoNames) | Airports of the world with scheduled service |
| Global Carbon Project — Global Carbon Budget (fossil CO₂ emissions) | CC BY 4.0 | CO₂ emissions by country |
| HM Land Registry — UK House Price Index data downloads | Open Government Licence v3.0 | UK house prices by region (UK House Price Index) |
| HUGO Gene Nomenclature Committee (HGNC) — protein-coding gene set | CC0 1.0 | Human protein-coding genes |
| HYG Stellar Database v4.4 (Astronexus, David Nash) | CC BY-SA 4.0 | Stars visible to the naked eye |
| NASA Exoplanet Archive — Planetary Systems Composite Parameters (pscomppars) | NASA Exoplanet Archive open data — free to use with acknowledgment | Confirmed exoplanets |
| NASA Goddard Institute for Space Studies — GISTEMP v4 (Land-Ocean Temperature Index) | Public domain (U.S. Government work) | Global surface temperature anomaly (NASA GISTEMP) |
| NASA Goddard Space Flight Center — Planetary Fact Sheet (metric), NSSDCA | Public domain (U.S. Government work) / CC0 1.0 (Wikidata) | Planets of the Solar System |
| NOAA Global Monitoring Laboratory — Trends in Atmospheric Carbon Dioxide (Mauna Loa) | Public domain (NOAA, U.S. Government work); March 1958–April 1974 Scripps data CC BY 4.0 | Atmospheric CO₂ at Mauna Loa (Keeling Curve) |
| NOAA Space Weather Prediction Center — observed solar cycle indices | Public domain (U.S. Government work) | Monthly sunspot number and solar radio flux |
| Nobel Prize API v2.1 (Nobel Prize Outreach) | CC0 1.0 | Nobel Prize laureates |
| openFDA Drugs@FDA API (U.S. Food and Drug Administration) | Public domain (U.S. Government work) / CC0 1.0 | FDA drug approvals per year, FDA drug approvals: original NDAs and BLAs |
| openfootball football.json | CC0 1.0 (public domain) | German Bundesliga match results, English Premier League champions, English Premier League match results, Spanish La Liga match results, French Ligue 1 match results, Italian Serie A match results |
| Our World in Data — CO₂ and Greenhouse Gas Emissions dataset | CC BY 4.0 | CO₂ emissions by country |
| Our World in Data — Energy dataset | CC BY 4.0 | Electricity generation mix by country |
| OurAirports | Public domain (OurAirports); country codes CC BY 4.0 (GeoNames) | Airports of the world with scheduled service |
| PubChem Periodic Table (NIH/NCBI) | Public domain (U.S. Government work) / CC0 1.0 | Periodic table of the elements |
| Scripps Institution of Oceanography CO₂ Program (1958–1974 record) | Public domain (NOAA, U.S. Government work); March 1958–April 1974 Scripps data CC BY 4.0 | Atmospheric CO₂ at Mauna Loa (Keeling Curve) |
| SEC EDGAR company tickers and exchanges | Public domain (U.S. Government work) | Largest U.S.-listed companies by revenue, U.S. public companies and their latest annual financials |
| SEC EDGAR XBRL frames API | Public domain (U.S. Government work) | Largest U.S.-listed companies by revenue, U.S. public companies and their latest annual financials |
| Smithsonian Institution Global Volcanism Program — Volcanoes of the World database (web feature service) | No known copyright restrictions — U.S. Government work (Smithsonian GVP Terms of Use); Wikidata identifiers CC0 | Volcanoes of the world (Holocene) |
| U.S. Bureau of Labor Statistics — CPI-U, series CUUR0000SA0 | Public domain (U.S. Government work) | U.S. consumer price index (CPI-U) and inflation rate, monthly since 1913 |
| U.S. Bureau of Labor Statistics — series LNS14000000 | Public domain (U.S. Government work) | U.S. unemployment rate, monthly since 1948 |
| U.S. Census Bureau — American Community Survey 5-year estimates, tables B25077 and B25064 (Summary File) | Public domain (U.S. Government work) | Median home value and rent by U.S. state and county |
| U.S. Census Bureau — Gazetteer files (county names) | Public domain (U.S. Government work) | Median home value and rent by U.S. state and county |
| U.S. Census Bureau — Population Estimates Program, state totals (NST-EST ALLDATA) | Public domain (U.S. Government work) | U.S. population by state |
| U.S. Department of the Treasury — Daily Treasury Par Yield Curve Rates | Public domain (U.S. Government work) | U.S. Treasury par yield curve rates, daily since 1990 |
| U.S. Federal Housing Finance Agency — House Price Index datasets | Public domain (U.S. Government work) | U.S. house price index by state (FHFA HPI) |
| UK House Price Index (HM Land Registry, Registers of Scotland, Land & Property Services Northern Ireland, ONS) | Open Government Licence v3.0 | UK house prices by region (UK House Price Index) |
| UK Parliament Members API | Open Parliament Licence v3.0 | Members of the UK House of Commons |
| UNESCO World Heritage List | CC0 1.0 | UNESCO World Heritage Sites |
| USGS Earthquake Hazards Program — ComCat FDSN event web service | Public domain (U.S. Government work) | Major earthquakes since 1900 (magnitude 7+) |
| USGS Earthquake Hazards Program — real-time GeoJSON feed | Public domain (U.S. Government work) | Earthquakes of magnitude 2.5+ in the past 30 days |
| Wikidata | CC0 1.0; Public domain (U.S. Government work) / CC0 1.0 | Billionaires with a net worth over $10 billion, Countries of the world, Highest-grossing films of all time, Highest mountains in the world, Languages by number of speakers, Largest cities in the world by population, Largest companies by number of employees, Largest lakes in the world, Largest stadiums in the world, Longest rivers in the world, Moons of the Solar System, Nuclear power plants, Academy Award for Best Picture winners, Academy Award winners in the major categories, Periodic table of the elements, Programming languages, Tallest buildings in the world, Presidents of the United States, UNESCO World Heritage Sites, Current world leaders |
| Wikidata (discovery date and discoverers) | Public domain (U.S. Government work) / CC0 1.0 (Wikidata) | Planets of the Solar System |
| Wikidata (European Parliament MEP ID, P1186) | European Parliament reuse policy (reuse authorised, source must be acknowledged) | Members of the European Parliament |
| Wikidata (identifier matching via Global Volcanism Program ID, P1886) | No known copyright restrictions — U.S. Government work (Smithsonian GVP Terms of Use); Wikidata identifiers CC0 | Volcanoes of the world (Holocene) |
| Wikidata (identifiers) | CC BY-SA 4.0 | Formula One World Championship circuits, Formula One World Constructors' Champions, Formula One drivers: career statistics, Formula One World Championship Grand Prix winners, Formula One World Drivers' Champions |
| Wikidata (instances of space probe, Q26529, and its subclasses) | CC0 1.0 | Robotic space probes |
| Wikidata (ISO country codes) | CC0 1.0 | Nobel Prize laureates |
| Wikidata (parliament.uk member ID, P10428) | Open Parliament Licence v3.0 | Members of the UK House of Commons |
| Wikidata (season winners, used as a cross-check) | CC0 1.0 (public domain) | English Premier League champions |
| Wikidata (team and player identifiers; season winners used as a cross-check) | CC BY-SA 4.0 | NBA champions, WNBA champions |
| Wikidata (team and stadium identifiers) | CC BY-SA 4.0 | NFL champions, 1920–1969 |
| Wikidata (team, player and stadium identifiers; Super Bowl winners used as a cross-check) | CC BY-SA 4.0 | Super Bowl champions |
| Wikidata Query Service (query used) | CC0 1.0 | Billionaires with a net worth over $10 billion, Countries of the world, Highest-grossing films of all time, Highest mountains in the world, Languages by number of speakers, Largest cities in the world by population, Largest companies by number of employees, Largest lakes in the world, Largest stadiums in the world, Longest rivers in the world, Nuclear power plants, Academy Award for Best Picture winners, Academy Award winners in the major categories, Programming languages, Tallest buildings in the world, Presidents of the United States, UNESCO World Heritage Sites, Current world leaders |
| Wikipedia: All-time Olympic Games medal table | CC BY-SA 4.0 | All-time Olympic Games medal table |
| Wikipedia: College football national championships in NCAA Division I FBS | CC BY-SA 4.0 | College football national champions (major selectors), 1869–present |
| Wikipedia: each season's article, "YYYY Formula One season" (1950–1980) and "YYYY Formula One World Championship" (1981 onward) | CC BY-SA 4.0 | Formula One World Championship Grand Prix winners |
| Wikipedia: List of College Football Playoff games | CC BY-SA 4.0 | College Football Playoff game results |
| Wikipedia: List of Formula One circuits | CC BY-SA 4.0 | Formula One World Championship circuits |
| Wikipedia: List of Formula One drivers | CC BY-SA 4.0 | Formula One drivers: career statistics |
| Wikipedia: List of Formula One Grand Prix winners | CC BY-SA 4.0 | Formula One drivers: career statistics, Formula One World Championship Grand Prix winners |
| Wikipedia: List of Formula One Grands Prix | CC BY-SA 4.0 | Formula One World Championship circuits, Formula One World Championship Grand Prix winners |
| Wikipedia: List of Formula One World Constructors' Champions | CC BY-SA 4.0 | Formula One World Constructors' Champions |
| Wikipedia: List of Formula One World Drivers' Champions | CC BY-SA 4.0 | Formula One drivers: career statistics, Formula One World Drivers' Champions |
| Wikipedia: List of Heisman Trophy winners | CC BY-SA 4.0 | Heisman Trophy winners |
| Wikipedia: List of NBA champions | CC BY-SA 4.0 | NBA champions |
| Wikipedia: List of NFL champions (1920–1969) | CC BY-SA 4.0 | NFL champions, 1920–1969 |
| Wikipedia: List of Super Bowl champions | CC BY-SA 4.0 | Super Bowl champions |
| Wikipedia: List of WNBA champions | CC BY-SA 4.0 | WNBA champions |
| Wikipedia: Super Bowl Most Valuable Player Award | CC BY-SA 4.0 | Super Bowl champions |
| World Bank — World Development Indicators | CC BY 4.0 | CO₂ emissions per person by country, 1970 to present, Countries of the world: key economic and social indicators, Fertility rate by country, 1960 to present, GDP by country, 1960 to present (current US$), GDP per capita by country, 1960 to present (current US$), Inflation rate by country, 1960 to present (consumer prices), Life expectancy at birth by country, 1960 to present, Population by country, 1960 to present, Unemployment rate by country, 1991 to present, World population, 1960 to present |
| World Bank Commodity Price Data (The Pink Sheet) | CC BY 4.0 | Commodity prices, monthly since 1960 (World Bank Pink Sheet) |
| World Bank indicator EN.GHG.CO2.PC.CE.AR5 | CC BY 4.0 | CO₂ emissions per person by country, 1970 to present |
| World Bank indicator FP.CPI.TOTL.ZG | CC BY 4.0 | Inflation rate by country, 1960 to present (consumer prices) |
| World Bank indicator NY.GDP.MKTP.CD | CC BY 4.0 | GDP by country, 1960 to present (current US$) |
| World Bank indicator NY.GDP.PCAP.CD | CC BY 4.0 | GDP per capita by country, 1960 to present (current US$) |
| World Bank indicator SL.UEM.TOTL.ZS | CC BY 4.0 | Unemployment rate by country, 1991 to present |
| World Bank indicator SP.DYN.LE00.IN | CC BY 4.0 | Life expectancy at birth by country, 1960 to present |
| World Bank indicator SP.DYN.TFRT.IN | CC BY 4.0 | Fertility rate by country, 1960 to present |
| World Bank indicator SP.POP.TOTL | CC BY 4.0 | Population by country, 1960 to present |
| World Bank indicator SP.POP.TOTL (World) | CC BY 4.0 | World population, 1960 to present |
| World Bank Indicators API | CC BY 4.0 | Countries of the world: key economic and social indicators |