Developer Settings

Developer settings provides additional features for development and managing your wallet, such as enabling test networks, viewing your private key, and other experimental features.

Testnets

Enable and disable test networks.

To see a list of supported test networks, see Whitelisted Networks.

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Testnets are enabled by default for the Coinbase Wallet browser extension.

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When enabled, Testnet assets will be displayed separately from Mainnet assets in a dedicated Testnets tab.

Testnet Faucets

Fund your wallet with assets for various test networks.

Faucets are provided for the following test networks:

Network	Limit
Görli Ethereum	0.1 ETH per 24 hours
Sepolia Ethereum	0.5 ETH per 24 hours
Polygon Mumbai	0.25 MATIC per 24 hours
Optimistic Görli	0.05 ETH per 24 hours

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Testnet faucets are only available in the Coinbase Wallet browser extension.

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Testnet faucet limits are updated dynamically. Limits may be lower than stated above when there is an increase in user traffic and demand.

Show Private Key

View the private key associated with your wallet.

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If 'Show Private Key' is disabled, you are connected to the extension through your mobile app or your hardware wallet. To export your private key and get full functionality, first sign out of the extension and import your seed phrase into Coinbase Wallet Extension.

caution

Do not share your private key with anyone, even Coinbase. Anyone with your private key can steal your funds.

Export Custom Networks

Exports all custom networks to your clipboard in JSON format.

[
  {
    "id": "1337",
    "chainName": "localhost",
    "rpcUrls": [
      "http://127.0.0.1:8545"
    ],
    "chainId": "1337",
    "nativeCurrency": {
      "decimals": 18,
      "name": "Custom network",
      "symbol": "TEST"
    },
    "blockExplorerUrls": [
      ""
    ],
    "iconUrls": [
      ""
    ]
  }
]

You can import custom networks under settings by navigating to Default Network > Add custom network