Curl
This guide demonstrates how to interact with Ethereum nodes directly using Curl commands. This is useful for testing, debugging, and understanding the underlying API calls.
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Basic Usage
Here's a basic example of getting the latest block number:
curl -X POST \
-H "Content-Type: application/json" \
--data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}' \
YOUR_ETHEREUM_NODE_URL
Authentication
When using authenticated endpoints:
curl -X POST \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
--data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}' \
YOUR_ETHEREUM_NODE_URL
Common Operations
Get Balance
curl -X POST \
-H "Content-Type: application/json" \
--data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0x742d35Cc6634C0532925a3b844Bc454e4438f44e","latest"],"id":1}' \
YOUR_ETHEREUM_NODE_URL
Get Transaction
curl -X POST \
-H "Content-Type: application/json" \
--data '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b"],"id":1}' \
YOUR_ETHEREUM_NODE_URL
See also
- Tools Overview - All Available SDKs and Tools
- Authentication Guide - Detailed Authentication Information
- Basic Operations - Fundamental Blockchain Operations
- Available Methods - Explore API Capabilities
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