Creating a Cryptocurrency Holdings spreadsheet in Google Docs (Sheets)

Thought I'd ask the professionals here some spreadsheet questions regarding IMPORTDATA, IMPORTHTML, etc... for a small side project I'm working on.

Goal:
-Make a spreadsheet of crypto holdings that can update automatically by gathering API web data.

What I've got so far:
-A spreadsheet with categories such as: Asset, Holdings, Total Distribution, Holding Percentage, USD Price, USD Total Value, BTC Price, BTC Total Value

What I need help with:
-Importing data from web sources into specific cells of my spreadsheet that, in turn, automatically updates as the pulled information updates.

An Example:

Say I own XCP-Counterparty. I want to populate a cell in my spreadsheet under "Total Distribution" with the data provided by this feed: http://xcp.blockscan.com/api2.aspx?module=supply&asset=XCP
HOW DO I DO THAT?

I can get the feed to load by using this command:

Code:

=IMPORTDATA("http://xch.blockscan.com/api2.aspx?module=supply&asset=XCH")

which gets me this:

Code:

{
  "status": "success",
  "message": "XCP",
  "result": "2647299.0783785"
}

But I can't just simplify it to show only the resulting number under

Code:

"result": "2647299.0783785"

Grabbing web data from multiple sources:
-I'd also like to do the same trick to load data from http://coinmarketcap.com/currencies/counterparty/ for cells in the spreadsheet under "USD Price" and "BTC Price". I figure that if someone can walk me through the steps in the example above I can curtail that knowledge into grabbing other data to auto-populate this spreadsheet.

Any help would be great, I appreciate it in advance!
Cheers,
LiteBit