Binance Public Data

Every file is a plain HTTPS GET from data.binance.vision with no account and no API key — a bare curl or wget against a path like data/spot/monthly/klines/BTCUSDT/1d/… — and the whole bucket can be enumerated without auth through its public S3 listing API. Each ZIP ships a sibling .CHECKSUM file for sha256sum -c. The companion repository, published by the verified binance GitHub organization, documents the file layout and ships Python and shell downloaders for klines, trades and aggregate trades.

License: the data carries no license or terms anywhere. The repository has no LICENSE file (the GitHub API reports license: null), data.binance.vision publishes no terms or disclaimer page, and the only statement of any kind is a bare “MIT” line at the end of the README — an unbacked claim in a repository that contains nothing but download scripts and format documentation. Do not treat the market data as MIT-licensed; what Binance’s general Terms of Use permit for redistribution or commercial use is not stated anywhere on the archive.

Two things will bite a naive loader. SPOT timestamps are in microseconds from 1 January 2025 onward and milliseconds before it, so one parser across that boundary silently misreads dates. And the README warns that archived files may be updated later to correct discovered issues, with a changelog of past retroactive corrections — a backtest is not guaranteed to be byte-for-byte reproducible over time. Note also that the documentation repository has been dormant since January 2025 while the archive itself is updated daily; the repo’s staleness does not imply stale data.