curl --request GET \
  --url https://api.struct.to/v1/polymarket/events/{event_slug}/analytics/changes

{
  "volume_usd": 123,
  "buy_volume_usd": 123,
  "sell_volume_usd": 123,
  "merge_volume_usd": 123,
  "split_volume_usd": 123,
  "unique_traders": 123,
  "unique_makers": 123,
  "unique_takers": 123,
  "txn_count": 123,
  "fees_usd": 123,
  "shares_volume": 123,
  "yes_volume_usd": 123,
  "no_volume_usd": 123
}