Native ETH and WETH: Check the Right Balance

Identify the WETH contract

Base’s official contract registry identifies WETH9 as 0x4200000000000000000000000000000000000006. Use the network and full contract address together when identifying it. A token name alone does not establish that it is the same asset. The registry also lists a testnet deployment, so the address must be interpreted with the selected network.

Compare two balances rather than one label

For a practical check, write down the public account address and selected network. Inspect the native balance on that network’s explorer, then inspect the account’s balance for the verified WETH contract. If the account has 0.02 native ETH and no WETH, entering 0.02 in a WETH quote field does not create WETH or prove the quoted input is available. These numbers are an illustration, not a balance report.

Keep conversion separate from quoting

Wrapping and unwrapping are distinct contract interactions; selecting a token in a form does not perform either action. Do not approve an unexpected request merely to make a displayed balance match an estimate. RunixCoin’s public quote interface does not establish a verified native-ETH conversion or executable swap route. No wrapping transaction is needed to read this guide.

Use a two-line record

Record native ETH and WETH separately when investigating a balance problem. Include the network beside each amount and the WETH contract beside the token amount. This makes it easier to distinguish a missing token row from a different account, wrong chain or conversion that never occurred. Treat a quote output as an estimate, not as newly received USDC.

References and verification

Content reviewed on 10 November 2026. Product observations describe the inspected public interface; external references explain the underlying concepts.

• Base: contract addresses