# GetBlock Docs

GetBlock provides connection to blockchain nodes of over 40 cryptocurrencies via such APIs as REST, JSON-RPC, and WebSockets.

The service allows developers to build blockchain apps faster, as they don’t need to worry about nodes configuration and maintenance.

You can find the full list of available nodes here. If you can’t find the node you need, let us know, and we will do our best to add it as soon as possible.

Here, we’ve collected resources with detailed information on the related protocols and specifications. Currently, we provide documentation for the most popular and highly used blockchain nodes. We are continuously developing and working on the Docs, and relatively soon, the required information will be available for each node.