Authentication with API Key

GetBlock currently supports full blockchain nodes of over 40 cryptocurrencies. We are constantly developing and adding new nodes to the platform. You can find the full list of available nodes here. If you could’t find the blockchain node you need, let us know, and we will do our best to add it as soon as possible.

Use a generally accepted blockchain SYMBOL in the request to access it, you also need to get the API key. You can get it for free at or write to our email. To send YOUR-API-KEY, use x-api-key as a request header (preferred):

Or add your API_KEY to the request parameters:


API methods (JSON-RPC, REST, WebSockets, etc.)

Get access to 40+ free blockchain nodes right now! provides connection for the most popular cryptocurrencies nodes with fast and reliable connection. All nodes have an open API and available for connection.
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