⛓️ eth_blockNumber RPC Method (Base Chain)

The eth_blockNumber method returns the number of the most recently mined block — encoded as a hexadecimal string.

It’s useful if you need to know the latest block height for syncing, indexing, or just monitoring the network in real time.

📄 Description

• Returns the latest block number available on the chain.
• Output is encoded in hexadecimal format.
• Requires no parameters.

🔧 Parameters

None.

🔁 Returns

A single hex string — the current block number.

Example:

"0x98b7db"

This means the latest block number is 10,000,155 in decimal.

🛰️ Request

POST https://base-mainnet.chainnodes.org/YOUR-API-KEY

💡 Example

curl https://base-mainnet.chainnodes.org/YOUR-API-KEY \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

📦 Body

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x98b7db"
}