eth_chainId - Monad RPC Method

Get the chain ID for Monad. Essential for transaction signing and network verification.

Returns the chain ID used for transaction signing on Monad.

Why Monad? Build on the parallel EVM L1 delivering 10,000 TPS with 400ms blocks and sub-cent gas fees with optimistic parallel execution, MonadBFT consensus, $244M Paradigm-led funding, and consumer-grade validator hardware requirements.

Use Cases

The eth_chainId method is essential for:

Transaction signing - Ensure transactions are signed for the correct network
Network verification - Confirm connection to the expected chain
Multi-chain apps - Handle different networks programmatically
Wallet integration - Validate network before transactions

Code Examples

Bash

curl -X POST https://api-monad-mainnet-full.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_chainId",
    "params": [],
    "id": 1
  }'

net_version - Get network version
eth_syncing - Check sync status

debug_getRawTransaction

Get the RLP-encoded raw transaction data on Monad. Essential for transaction analysis and re-broadcasting.

eth_syncing

Check the sync status of your Monad node. Returns sync progress or false when fully synced — essential for node health monitoring and dApp reliability.

On this page

Related Methods