eth_chainId - Celo RPC Method
Get the chain ID for Celo. Essential for transaction signing and network verification.
Returns the chain ID used for transaction signing on Celo.
Why Celo? Build on the mobile-first L2 powering 500K+ daily active users and $2B+ monthly stablecoin volume with phone number-based addressing, sub-cent fees, 150+ country adoption, Nightfall privacy layer, and Opera browser integration.
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
Related Methods
net_version- Get network versioneth_syncing- Check sync status
debug_traceTransaction
Trace a transaction execution on Celo. Requires archive node for debugging mobile stablecoin payments (MiniPay 10M+ wallets), remittances, humanitarian aid, and local currency stablecoins (cUSD, cNGN, cEUR).
eth_syncing
Check the sync status of your Celo node. Returns sync progress or false when fully synced — essential for node health monitoring and dApp reliability.