I have created an enhanced bitcoin skill based on the bitcoin skill by Red5d (https://github.com/Red5d/mycroft_skills/tree/master/bitcoin). That skill assumed the currency is USD and only the 24-hour average price was returned. My skill adds other statistics and can grab the stats for many currencies.
This enhanced skill is available here: https://github.com/chrison999/mycroft-skill-bitcoin-enhanced
I welcome for folks to test it and let me know if they find any problems/bugs. (There’s probably plenty because I’m a Python newbie!) I’m also open to suggestions for improving the skill.