Compare Cryptocurrency Market Caps with CoinGecko Data

Market-cap comparisons become misleading when rows use different currencies, collection times, or asset definitions. The CoinGecko Markets Scraper collects a ranked snapshot with the same quote currency and update context.

Collect one coherent ranking

Leave the ID list empty, order by descending market capitalization, and set the population size explicitly.

{
  "coinIds": [],
  "vsCurrency": "usd",
  "order": "market_cap_desc",
  "maxResults": 100
}

The result contains rank, current and fully diluted valuations, 24-hour volume, circulating and total supply, price movement, and source timestamps. Check that IDs are unique and currencies are identical before calculating shares.

Derive comparisons carefully

Market-cap share within the returned sample is not automatically share of the entire crypto market. Label the denominator as “top 100 returned market cap” unless you have a verified total-market value. Treat missing supply or fully diluted valuation as null, not zero.

Volume-to-market-cap ratios can highlight unusual activity, but volume definitions and market coverage are source-dependent. Use them as screening signals and inspect the asset page before drawing a conclusion. The same caution applies to all-time high distance: older assets and newer launches have very different histories.

For a repeated study, save the input as a Task and retain timestamped datasets. Rankings can change between snapshots, so join history on CoinGecko ID rather than row number or symbol. If you switch currency, category, order, or population cap, start a new series or store those parameters with every observation. A reproducible comparison records not only the values but also exactly which universe produced them.