Yes, there are Swap Points, or so called Overnight Financing for holding positions overnight even for Cryptocurrencies.

Swap rates are calculated based on the relevant interbank rate.

Swap Charge occurs at 00:00 in MetaTrader server time and it could take a few minutes.

Swap Points of Cryptocurrencies are often negative with many online brokers, thus it can be a demerit holding positions longer.

You can find the latest Swap Points for each Cryptocurrency pair on the platform.