# Supported cryptocurrency exchanges
# Supported by XChange
Cassandre uses XChange (opens new window), a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.
You can find here (opens new window) a table showing a list of exchanges and how XChange supports them.
# Validated by Cassandre
Cassandre can theoretically support the 60+ cryptocurrency exchanges the way XChange does but we can't test them all.
Some exchanges provide a sandbox. On those ones, we were able to create integration tests for :
- Coinbase (opens new window): Working except cancel order.
- Gemini (opens new window): Working but market orders are not supported.
- Kucoin (opens new window): Working.