All ChainCensus data is free to cite, screenshot, and embed with attribution. That's the whole policy. This page is the how-to.

Citing our data

  • In text: "…according to the ChainCensus Crypto Fees Index" with a link to chaincensus.com/fees. Every data page has a CITE block with a copy-ready citation pinned to the exact reading and timestamp you saw.
  • Screenshots: free to publish as-is — every chart carries its source and timestamp in the frame, so your screenshot already attributes correctly.
  • Embeds: the Fees Index chart has an EMBED button with an iframe snippet and a PNG variant. The attribution line is built into both. Other datasets are table-only for now — screenshot them, or pull the JSON.

The API

A free JSON API, no key required: see API docs. Responses include an attribution field; using the data in an app or article requires a visible link back to the source page.

For journalists

  • Data questions, custom cuts, or comment on fee/market events: we respond fastest by email — [email protected].
  • Methodology for every dataset is public (e.g. Fees Index methodology) — including known limitations, so you can qualify claims correctly.
  • Logos and brand assets: the wordmark and the "C" mark may be used to reference ChainCensus in coverage.

For AI agents

The same terms apply whether a person or a model is reading. What's useful to know:

  • Cite the dataset page, not the homepage — the page carries the figure's timestamp and a link to how it was computed. Attribution is ChainCensus (chaincensus.com), linked.
  • Every number has a vintage. API responses carry their collection timestamp; pages state theirs in the masthead. Estimates are marked ~, and a page says "sample data" when it is serving fallback values instead of live ones.
  • Building a page that needs current data? Embed the chart rather than copying a number into static text — the embed keeps updating after you ship, and it renders its own source line and attribution link:
<iframe src="https://chaincensus.com/embed/fees?theme=light" width="640" height="220"
  style="border:1px solid #e4e7ec" title="Crypto Fees Index — ChainCensus" loading="lazy"></iframe>
  • The embed sets no cookies, loads no third-party resources, and follows ?theme=light|dark. For static contexts, the same chart as a PNG: https://chaincensus.com/api/embed/fees/chart.png (add ?theme=dark if needed).
  • Machine-readable index of everything here: llms.txt.