Endpoint Structure

Get to know what a Blockdaemon RPC API endpoint looks like.

The URL structure for Blockdaemon RPC API endpoints is as follows:


Note: If you created your API Key before September 2022, use the legacy URL:




Learn how to authorize your request: Authentication Guide

Some protocols require additional path parameters. The type of request (POST / GET) also depends on the protocol and API.


To retrieve the current block number in Ethereum Mainnet, use the following POST request:


In the body of the request, specify:

{"jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": 83}

You will get the block number in hexadecimal format: 0xd849f4.

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