RPC Configuration (Mainnet & Testnet)

How to configure RPC endpoints for Shardeum Mainnet and Testnet.

To interact with the Shardeum blockchain, you need to connect your application or wallet to the correct JSON-RPC endpoint. Below are the official configuration details for both the Mainnet and Testnet networks.

Shardeum Mainnet

Setting	Value
Network Name	Shardeum
RPC URL	https://api.shardeum.org
Chain ID	8118
Currency Symbol	SHM
Block Explorer	https://explorer.shardeum.org

Shardeum Testnet

Setting	Value
Network Name	Shardeum Testnet
RPC URL	https://api-testnet.shardeum.org
Chain ID	8083
Currency Symbol	SHM
Block Explorer	https://explorer-testnet.shardeum.org

How to Add to MetaMask (or any EVM wallet)

1. Open your wallet and go to the network selection dropdown.
2. Click “Add Network” or “Custom RPC”.
3. Enter the values from the table above for either Mainnet or Testnet.
4. Save and switch to the new network.

You can now interact with Shardeum using your preferred tools and libraries (e.g., ethers.js, web3.js, MetaMask, etc.).

Tip: Always verify you are using the official endpoints. For the latest information, see the official Shardeum docs.