Open datasets

Take it, use it, sell work built on it.

Everything we measure publishes as a downloadable dataset under CC-BY 4.0. Commercial use included. Attribution and a link back is the entire price, and you do not need to ask us first.

CC-BY 4.0 Commercial use OK No signup No rate limit
CATALOGUE

Available now

How we measure →
DatasetLicenceRecordsCadenceStatus
Rap lexical density index 2026 CC-BY 4.0 — Quarterly Corpus running

One dataset, not yet released. We are not going to pad this table to make the catalogue look bigger than it is.

Using the data

Attribution, in full

Data by Overtone. Free to reuse, including commercially, with attribution and a link back to the study it came from. If you build something with it, we would like to see it, but you are not required to tell us.

What every dataset ships with

  • A method note: how the population was defined and what was excluded
  • The sample size, stated plainly, even when it is small
  • A limitations section written before the findings, not after
  • An as_of date and a published refresh cadence
  • A machine-readable schema describing every measured variable