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All open datasets

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

5 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 Right18 Sept 2026, 20:46:03 UTC

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

    • 6.5M rows (estimated)
    • 3,339 views
    • 9 uses. Uses include downloads and successful API/MCP queries
  2. Streaming

    Mostly Right5 Oct 2026, 16:50:52 UTC

    Kalshi 15-minute BTC order book, fresh live

    • 1.2M rows (estimated)
    • 1,554 views
    • 605 uses. Uses include downloads and successful API/MCP queries

  3. Mostly Right10 Oct 2026, 23:50:04 UTC

    NYC Uber and Lyft trips by taxi zone and hour

    • 511.0K rows (estimated)
    • 386 views
    • 0 uses. Uses include downloads and successful API/MCP queries
  4. Daily

    Mostly Right19 Oct 2026, 16:10:04 UTC

    EU financial firm licences and regulator warnings

    • 55.5K rows (estimated)
    • 172 views
    • 0 uses. Uses include downloads and successful API/MCP queries
  5. Daily

    Mostly Right19 Oct 2026, 14:22:45 UTC

    Czech companies with KYB risk flags

    • 642.3K rows (estimated)
    • 85 views
    • 0 uses. Uses include downloads and successful API/MCP queries