Log in

All open datasets

Explore open, documented datasets for analysis and machine learning, with clear licences, JSON API access, and Parquet downloads.

8 datasets

Every dataset here is published as immutable Apache Parquet versions with a documented column schema, column profiles, an explicit licence and a named publisher. Read the schema and a sample of real rows without an account; sign up free to run bounded JSON queries or download the whole snapshot for training, backtesting or analysis. Agents can do the same over the Model Context Protocol at /api/mcp, or read /llms-full.txt for the whole catalogue in one file.

  1. Hourly

    Mostly Right16 Oct 2026, 04:10:54 UTC

    US Weather Reports and Daily Highs in 20 Cities

    • 1.4M rows (estimated)
    • 5,639 views
    • 622 uses. Uses include downloads and successful API/MCP queries
  2. Hourly

    Mostly Right18 Sept 2026, 20:46:03 UTC

    Hourly rainfall and gauge history, U.S. cities, 2000–2026

    • 6.5M rows (estimated)
    • 3,340 views
    • 9 uses. Uses include downloads and successful API/MCP queries
  3. Daily

    Mostly Right19 Oct 2026, 13:10:18 UTC

    LLM benchmark scores by model, since 2019

    • 7.0K rows (estimated)
    • 1,779 views
    • 89 uses. Uses include downloads and successful API/MCP queries
  4. Daily

    Mostly Right15 Sept 2026, 16:31:35 UTC

    Nursing home operators and staffing, United States

    • 1.6M rows (estimated)
    • 620 views
    • 1,054 uses. Uses include downloads and successful API/MCP queries
  5. Daily

    Mostly Right18 Sept 2026, 18:06:04 UTC

    Policy indicators, India and South Asia, 2000–2024

    • 3.8K rows (estimated)
    • 606 views
    • 11 uses. Uses include downloads and successful API/MCP queries
  6. Weekly

    Mostly Right18 Oct 2026, 03:16:07 UTC

    Czech food products

    • 13.6K rows (estimated)
    • 512 views
    • 79 uses. Uses include downloads and successful API/MCP queries

  7. Mostly Right22 Sept 2026, 12:34:31 UTC

    US fatal crash rates per mile by gender, 2022

    • 48 rows (estimated)
    • 508 views
    • 19 uses. Uses include downloads and successful API/MCP queries
  8. Daily

    Mostly Right9 Sept 2026, 13:52:18 UTC

    European harvests and weather, 2000–2024

    • 7.6K rows (estimated)
    • 459 views
    • 4 uses. Uses include downloads and successful API/MCP queries