Clue

curl "https://api.tcggraph.com/v1/cards/mtg_b7c52125-929" \
  -H "Authorization: Bearer $TCGGRAPH_KEY"

# realised sales by day
curl "https://api.tcggraph.com/v1/prices/mtg_b7c52125-929/sales?days=90" \
  -H "Authorization: Bearer $TCGGRAPH_KEY"

{
  card(id: "mtg_b7c52125-929") {
    name
    prices { source finish currency low trend market }
    printings { key label kind imageFrom images { small } prices { source market trend } }
    languagePrices {
      language finish low lowNm offers truncatedAbove
      conditions { condition low offers }
    }
    gradedPrices { grader grade price }
  }
}