About the network Pitfalls How to send FAQ
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L2 Coinbase — gas in cents, in ETH

Wallet for Base

Base is Ethereum’s “second floor” from Coinbase: same 0x… addresses, fees in cents, gas in ETH. In Mitilena the network is shown on the signing screen; there is no BASE coin of its own — only ETH. A free wallet in 30 seconds, no KYC.

Create a free Base wallet Network pitfalls
Free, no sign-up 18 networks in one app Offline signing on a card
B
Network passportBase · ETH
CoinETH (gas); no native coin
Address0x…, same as Ethereum
Feecents, in ETH
Gas for tokensneed ETH on Base
Confirmationseconds; bridge to Ethereum — up to 7 days
Memo / tagnone
TokensUSDC from Circle, USDT, project tokens
Freezestables — issuer; ETH — nobody
About the network
B

Base

since 2023 · EVM, L2 on top of Ethereum from Coinbase

Why Base, who needs it, and how this network’s rules differ from the rest — short and to the point.

What for
Cheap USDC transfers and apps on Base: on-chain social, memecoins, DeFi.
Who uses it
Coinbase users, for whom this is the default network, and anyone who wants cheap Ethereum with a large audience.
Quirk
The sequencer belongs to Coinbase. The network’s native stablecoin is USDC — Circle issues it on Base directly.
Pitfalls

Four Base rules worth knowing before you send

Not abstract “crypto risks,” but the rules of this network. For each — what happens, and how Mitilena shows it before the Send button.

Pitfall 01

Same address, different floor

A common mistake: withdrawing from an exchange “on Ethereum” to where Base is expected, or the reverse. Same address, different balances — the exchange only sees its own network.

How we do it
The network is chosen explicitly and written in words on the signing screen. Before withdrawing, check: Base specifically.
Pitfall 02

BASE token does not exist

Base has no native coin — gas is paid in ETH. A token named BASE or “Base Coin” is a fake; they are regularly sold on news waves.

How we do it
In Mitilena the Base network coin is one — ETH. A “BASE” token can appear only as a custom contract, and we will show its address.
Pitfall 03

Gas in ETH, separate from Ethereum

ETH on Base and ETH on Ethereum are two different balances on the same address. To send USDC on Base you need ETH specifically on Base.

How we do it
We show the ETH balance on Base and the gas estimate before you sign. Top up — withdraw from an exchange “on Base,” or swap inside the wallet.
Pitfall 04

Bridge to Ethereum — a week

Withdrawing to Ethereum via the official bridge takes about 7 days. Fast bridges take minutes, but with a fee and a middleman.

How we do it
In Mitilena it is simpler to swap the token or withdraw through an exchange that accepts both networks.
How to send

How to send ETH in Mitilena

01
Paste a 0x… address. Confirm the recipient expects the Base network.
02
Pick the coin: ETH or a token. The address needs ETH on the Base network.
03
The fee is cents.
04
Check the signing screen: network, address, operation type. Sign.
05
Confirmation takes seconds.
What happens to the key and what our server sees — step by step on How a transfer leaves.
Send ETHBase
To
0x…
Amount
0.00 ETH≈ $0
Gascents, charged in ETH on Base
network quirk
NetworkBase — not Ethereum
simpler than it looks
!Base has no native coin — a “BASE” token does not exist
Continue
Send-form mock: fields and hints that appear specifically for the Base network.
Tokens

Tokens on Base: ERC-20 on Base

What there is
USDC — native, Circle issues it on Base directly; USDT; project tokens and memecoins.
Gas
A token transfer is paid in ETH on the Base network.
Freeze
Circle and Tether can freeze an address. Nobody can freeze ETH.
Fakes
Memecoins on Base are a separate topic with fakes. Check the contract and do not sign “approvals” for sites that promise giveaways.
How we do it

What Mitilena can do on Base

Send and receive ETH and USDT
ETH and Base network tokens, address 0x…
Separate ETH balance for Base, gas estimate
Replace a stuck transaction with the same nonce
WalletConnect: apps on Base
Offline signing in Mitilena Air
Swap inside the wallet
Hand off to Mitilena Air by sound — no cable or USB: the online phone plays the transaction, the offline one listens, signs, and replies
Mitilena NFC card
For larger amounts
Offline signing of ETH on an NFC card
The key is born on a device with no internet and lives on the card. The transaction goes to the offline phone by sound or QR — no cable, USB, or internet.
Ultimate · €369
FAQ

What people ask about Base

Does Base have its own coin?

No. Gas is paid in ETH. Any “BASE” token is a fake. In Mitilena the network coin is ETH.

What is the fee on Base?

Cents per transfer, in ETH. It only gets more expensive together with Ethereum.

I sent USDC on Base to an exchange address for Ethereum. What now?

The funds sit on Base at that address. If the exchange accepts Base — write support with the hash; if not — only the key owner (the exchange) can return them, at their discretion.

Is USDC on Base the real one?

Yes, Circle issues USDC on Base directly — the native version, not bridged.

Base wallet in 30 seconds — free, no sign-up

ETH and 17 more networks in one app · support@mitilena.com
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