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.
Pay attention!
Hey there! Just a friendly heads-up: this page is meant to give you a solid overview of working with Curl/Http requests. For hands-on code examples, check out our API Methods documentation where you'll find ready-to-use examples in all supported languages!
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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