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Overview of Celo Mainnet and the Celo Sepolia Testnet.

Celo Mainnet

NameValue
Network NameCelo Mainnet
DescriptionThe production Celo network
Chain ID42220
Currency SymbolCELO
RPC Nodes
RPC Endpoint (best effort)https://forno.celo.org
Note: Forno is rate limited, as your usage increases consider options that can provide the desired level of support (SLA).
Block Explorers
Bridge LinkList of bridges
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Celo Sepolia Testnet

NameValue
Network NameCelo Sepolia
DescriptionThe New Developer Testnet network (replacing Alfajores)
Chain ID11142220
Currency SymbolCELO
RPC Endpoint (best effort)https://forno.celo-sepolia.celo-testnet.org
OP-Node RPC Endpoint (best effort)https://op.celo-sepolia.celo-testnet.org
Block Explorerhttps://celo-sepolia.blockscout.com
Bridge Linkhttps://testnets.superbridge.app
Note: Ensure you enable Testnet in settings
Faucet Links
The Celo Sepolia Testnet is Celo’s new developer testnet built on Ethereum Sepolia, designed to replace Alfajores following the planned Holesky deprecation in September 2025. Key Features:
  • Fresh State: Starts with a clean slate, no state inheritance from Alfajores
  • L1 Foundation: Built on Ethereum Sepolia for enhanced stability
  • Developer-Focused: Provides the same developer experience as Alfajores
New Celo Sepolia Testnet Now Live!Try Celo’s new developer testnet on Ethereum Sepolia. Learn more →
The Celo Sepolia Testnet is designed for testing and experimentation by developers. Its tokens hold no real world economic value. The testnet software will be upgraded on a regular basis. This will erase your accounts, their balance and your transaction history. You may encounter bugs and limitations with the software and documentation.
Your use of the Celo Sepolia Testnet is subject to the Celo Sepolia Testnet Disclaimer.
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