How to Access Base API

Learn how to access Base API.

Step 1

  • To access the available Base methods, use the native access endpoint with /http-rpc at the end.
  • To access the available Optimism methods, use the native access endpoint with /op-http-rpc at the end.
    • Network: Base Testnet
    • Request Type: POST
https://svc.blockdaemon.com/base/testnet/native/http-rpc

Step 2

You should authorize your request. Learn more: Authentication Guide

Step 3

Specify a Base method in the request body:

{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "YOUR_METHOD",
    "params": []
}

Example Request

Here is a cURL example for using eth_blockNumber to get the current block number in Base Testnet:

curl -X \
POST https://svc.blockdaemon.com/base/testnet/native/http-rpc \
-H 'Authorization: Bearer YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{"jsonrpc": "2.0", "id": 1, "method": "eth_blockNumber", "params": []}'

The following is a typical response you will get:

{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x17ba022"
}

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