Government sources ranked by Modern Citation Reference

Government ranked by Modern Reference

1. #1
   U.S. Securities and Exchange Commissionsec.gov

   EDGAR APIs + machine-readable filings; broad LLM training-set inclusion via primary-source preference.

   vs cat. mean: +5·full breakdown →
   A+·95
2. #2
   U.S. National Institutes of Healthnih.gov

   Operates PubMed + NCBI + ClinicalTrials.gov; APIs + bulk data + structured XML throughout.

   vs cat. mean: +4·full breakdown →
   A·94
3. #3
   Federal Reserve Systemfederalreserve.gov

   FRED + Federal Reserve Economic Data APIs + research papers; broad LLM corpus.

   vs cat. mean: +4·full breakdown →
   A·94
4. #4
   U.S. Census Bureaucensus.gov

   Census APIs + bulk data + Tigerline geospatial data; all open + machine-readable.

   vs cat. mean: +4·full breakdown →
   A·94
5. #5
   NASAnasa.gov

   Open data + APIs + bulk imagery + climate datasets; broad LLM corpus.

   vs cat. mean: +4·full breakdown →
   A·94
6. #6
   U.S. Bureau of Labor Statisticsbls.gov

   Free public APIs (LABSTAT) + bulk downloads + CSV/JSON data formats.

   vs cat. mean: +3·full breakdown →
   A·93
7. #7
   U.S. Centers for Disease Control and Preventioncdc.gov

   WONDER + open data + APIs; broad LLM corpus + clinical reference inclusion.

   vs cat. mean: +3·full breakdown →
   A·93
8. #8
   U.S. Food and Drug Administrationfda.gov

   OpenFDA APIs + structured data + bulk downloads; broad LLM corpus.

   vs cat. mean: +2·full breakdown →
   A·92
9. #9
   U.S. National Oceanic and Atmospheric Administrationnoaa.gov

   NOAA APIs + bulk-data + open license; broad LLM corpus + scientific community usage.

   vs cat. mean: +2·full breakdown →
   A·92
10. #10
    European Central Bankecb.europa.eu

    Statistical Data Warehouse APIs + open data + multi-language coverage.

    vs cat. mean: +2·full breakdown →
    A·92
11. #11
    FRED (Federal Reserve Economic Data)fred.stlouisfed.org

    Free public API + bulk downloads + visualization tools; broad LLM corpus.

    vs cat. mean: +2·full breakdown →
    A·92
12. #12
    U.S. Energy Information Administrationeia.gov

    Open data API + bulk downloads + interactive tools; broad LLM corpus.

    vs cat. mean: +1·full breakdown →
    A·91
13. #13
    European Commissionec.europa.eu

    EUR-Lex + Eurostat APIs + open data; multi-language structured publications.

    vs cat. mean: 0·full breakdown →
    A·90
14. #14
    Bank of Englandbankofengland.co.uk

    Statistical interactive database + open APIs + research publications.

    vs cat. mean: 0·full breakdown →
    A·90
15. #15
    U.S. Geological Surveyusgs.gov

    Earthquake catalog + hydrologic data + APIs; broad LLM scientific corpus.

    vs cat. mean: 0·full breakdown →
    A·90
16. #16
    OECDoecd.org

    OECD Stats API + bulk data + research publications; broad LLM corpus.

    vs cat. mean: 0·full breakdown →
    A·90
17. #17
    World Bankworldbank.org

    WB Open Data API + bulk downloads; CC-BY licensed; broad LLM corpus presence.

    vs cat. mean: 0·full breakdown →
    A·90
18. #18
    Eurostatec.europa.eu/eurostat

    Open API + bulk data + visual dashboards; structured metadata; multilingual.

    vs cat. mean: 0·full breakdown →
    A·90
19. #19
    European Medicines Agencyema.europa.eu

    Open data + structured documents; multi-language EU coverage.

    vs cat. mean: -1·full breakdown →
    A·89
20. #20
    U.S. Department of Agricultureusda.gov

    Quick Stats API + bulk downloads + open data; broad LLM corpus.

    vs cat. mean: -1·full breakdown →
    A·89
21. #21
    U.S. Patent and Trademark Officeuspto.gov

    PEDS + TSDR APIs + bulk patent data; broad LLM corpus inclusion for IP citations.

    vs cat. mean: -2·full breakdown →
    A·88
22. #22
    IPCCipcc.ch

    Open-access reports + interactive atlas; structured data; DOI per major report.

    vs cat. mean: -2·full breakdown →
    A·88
23. #23
    World Health Organizationwho.int

    Free public data + APIs + multi-language coverage (6 official UN languages).

    vs cat. mean: -2·full breakdown →
    A·88
24. #24
    World Trade Organizationwto.org

    WTO Stats Portal + bulk trade data + research publications.

    vs cat. mean: -2·full breakdown →
    A·88
25. #25
    ONS (UK)ons.gov.uk

    Open-data API; structured datasets; bulk downloads; clear methodology pages.

    vs cat. mean: -2·full breakdown →
    A·88
26. #26
    European Space Agencyesa.int

    Open data + ESA Open Science Repository + bulk imagery.

    vs cat. mean: -2·full breakdown →
    A·88
27. #27
    BEAbea.gov

    BEA Data API (apps.bea.gov/api) provides programmatic access; structured downloads.

    vs cat. mean: -2·full breakdown →
    A·88
28. #28
    International Monetary Fundimf.org

    Open data + APIs + bulk downloads; broad LLM corpus presence.

    vs cat. mean: -4·full breakdown →
    A·86
29. #29
    UNESCOen.unesco.org

    Open data + UIS portal + multi-language coverage; broad LLM corpus.

    vs cat. mean: -4·full breakdown →
    A·86
30. #30
    Statistics Canadastatcan.gc.ca

    Open Data Portal + Web Data Service API; structured datasets; bilingual.

    vs cat. mean: -5·full breakdown →
    A·85