Loved this, exactly what I was hoping for in
my request in another tool. Can you retrieve prices with a shorter time history for no date query (eg closing price in the last 1 hour).
For everyone's information: use "&" to combine multiple queries like color and date at once. Example

(
BTC price per 2017-12-27)
[img]https://ztt.se/btc:quote?img=col:blue&date=2017-12-27[/img]