Can I stream without an API key? Vladimir Cosic 26 May 2020 11:48 Updated Follow No, to stream data you will need an API key. https://www.cryptocompare.com/coins/guides/how-to-use-our-api/ Related articles How are WebSocket messages counted towards my API limit? What can I expect from the Developer Portal? What will happen to the existing free public API? Comments 0 comments Article is closed for comments.