# Exchanges and Pairs
Included are only exchanges supported by TradingView:
Excluded low exchanges (not in CMC Top):
* CEX .
Excluded exchange due to calculation by TV:
Many other top exchanges are not included, because they are not supported by TradingView.
By default the spot exchanges are selected. You can select also the other margin trading and derivatives exchanges.
Feel free to share any ideas and issues you have.
# Open Source
The code is open source @ https://github.com/holofinance/aggregated-volume-crypto-tvi and uses the commonpine library https://github.com/holofinance/commonpine