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BaseETH

Overview

BaseETH ( Base Ethereum) is a Layer 2 scaling solution for Ethereum built by Coinbase using the OP Stack, the same technology powering Optimism. Base uses optimistic rollup technology to process transactions off-chain while posting compressed data to Ethereum mainnet for security.

Base implements EVM equivalence at the bytecode level through the Optimism Virtual Machine. The network uses sequencers to order transactions and achieve fast block times. Base inherits Ethereum's security through a fraud proof window during which invalid state transitions can be challenged. The network uses ETH for gas fees and supports all Ethereum transaction types including EIP-1559.

Explorer

https://base.blockscout.com/

Wallets Types

BitGo enables holding BaseETH in the following wallet types:

Multisig ColdMultisig HotMPC ColdMPC Hot
Custody✅❌✅❌
Self-Custody✅✅✅✅

Ticker Symbols

MainnetTestnet
baseethtbaseeth

Faucet

You can use a faucet to obtain free testnet BaseETH for development and testing purposes.

Faucet: https://www.ethereum-ecosystem.com/faucets/base-sepolia

Units

Each BaseETH is comprised of 1,000,000,000,000,000,000 (1018) wei, so not even a single BaseETH can be stored numerically without exceeding the range of JavaScript numbers. Gas fees are denoted in gwei.

  • 1 BaseETH = 1018 wei
  • 1 wei = 10-18 BaseETH
  • 1 gwei = 10-9 BaseETH

For that reason, only string balance properties are available, which are balanceString, confirmedBalanceString, and spendableBalanceString.

Tokens

The BaseETH blockchain natively supports tokens .

Create Wallet

  • cURL
  • JavaScript
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export BITGO_EXPRESS_HOST="<YOUR_LOCALHOST>"
export COIN="tbaseeth"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"
export LABEL="<DESIRED_WALLET_NAME>"
export PASSPHRASE="<YOUR_BITGO_LOGIN_PASSPHRASE>"
export ENTERPRISE_ID="<YOUR_ENTERPRISE_ID>"

curl -X POST \
 http://$BITGO_EXPRESS_HOST/api/v2/$COIN/wallet/generate \
 -H 'Content-Type: application/json' \
 -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "label": "'"$LABEL"'",
    "passphrase": "'"$PASSPHRASE"'",
    "enterprise": "'"$ENTERPRISE_ID"'",
    "walletVersion": 4
}'

Create Address

  • cURL
  • JavaScript
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export WALLET="585c51a5df8380e0e3082e46"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"

curl -X POST \
-H "Authorization: Bearer $ACCESS_TOKEN" \
https://app.bitgo-test.com/api/v2/tbaseeth/wallet/$WALLET/address

Consolidate Balance

Consolidation Fee Source: BaseETH Gas Tank

BaseETH uses forwarders, so it does not support manual consolidation

Estimate Fee

  • cURL
  • JavaScript
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export COIN="tbaseeth"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"

curl -X GET \
 https://app.bitgo-test.com/api/v2/$COIN/tx/fee \
 -H 'Content-Type: application/json' \
 -H "Authorization: Bearer $ACCESS_TOKEN"

Transact

Withdrawal Fee Source: Wallet Base Address

  • cURL
  • cURL (send to many)
  • JavaScript
  • JavaScript (send to many)
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export BITGO_EXPRESS_HOST="<YOUR_LOCALHOST>"
export COIN="tbaseeth"
export WALLET_ID="<YOUR_WALLET_ID>"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"
export ADDRESS="<DESTINATION_ADDRESS>"
export AMOUNT="<AMOUNT_IN_BASE_UNITS>"
export WALLET_PASSPHRASE="<YOUR_WALLET_PASSPHRASE>"

curl -X POST \
 http://$BITGO_EXPRESS_HOST/api/v2/$COIN/wallet/$WALLET_ID/sendcoins \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "address": "'"$ADDRESS"'",
    "amount": "'"$AMOUNT"'",
    "walletPassphrase": "'"$WALLET_PASSPHRASE"'"
}'

See Also