Receive dollars | Arca Docs

Receiving dollars is the easiest thing Arca does. You share your wallet address with the sender, and the dollars land in your wallet when they send. No approval on your side, no forms, no forwarding.

Open the Receive screen

On the Wallet tab, tap Receive (the second of the three buttons under your balance). The Receive screen opens.

What the screen shows

At the top is a card with your wallet’s QR code. Below the QR code is your wallet address as text (a long string starting with 0x), and two buttons:

Copy — copies the address to your phone’s clipboard.
Share — opens your phone’s share menu so you can send the address through a message, email, or any app.

Below that is a second card labeled Supported Networks and Supported Tokens. Each is shown as a row of badges.

At the bottom is an amber warning: Only send tokens to supported networks. Tokens sent to the wrong network may be lost permanently. Always check before sending.

You have a few ways to give someone what they need to send you dollars.

Copy and paste. Tap Copy, switch to your messaging app, and paste. Works for every app.
Share sheet. Tap Share, pick an app, and send. Fastest way to reach someone on iMessage, WhatsApp, Telegram, Signal, or email.
Show the QR code. In person, just show the screen. The other wallet’s scanner reads it and fills in your address automatically.

Supported networks and tokens

Arca supports two networks: Base and Optimism. Both are layer-2 networks built on top of Ethereum. You do not need to pick between them for receiving, because your wallet address is the same on both. Dollars sent on either network arrive at the same place.

Arca supports two digital dollar tokens: USDC (issued by Circle) and USDT (issued by Tether). Both are pegged one-to-one with the US dollar and backed by the companies that issue them. They appear in your balance as dollars either way.

Tell the sender which network you want

If the sender is using another wallet app, ask them which network they plan to use. Both Base and Optimism are common, and most major wallets and exchanges support them.

If the sender is on Arca, they will see a prompt to pick a network on the send side, and either choice lands in your wallet.

Getting dollars from an exchange

If someone is sending from an exchange (Coinbase, Binance, Kraken, and similar):

Copy your Arca wallet address.
On the exchange, start a withdrawal of USDC or USDT.
Paste your Arca address as the destination.
Pick Base or Optimism as the network. Not every exchange supports both, so pick whichever the exchange offers.
Confirm the withdrawal.

Your dollars arrive in Arca once the exchange sends the transfer, which can be instant or a few minutes depending on the exchange.

What happens when dollars arrive

Your balance on the Wallet tab updates right away. If notifications are on, you get a push. The transfer appears in Activity with the sender’s address, the amount, and the network.

You do not have to accept, approve, or confirm anything. Incoming dollars are yours the moment they arrive.

The one thing to avoid

Never give out your wallet address as a destination for a different token (like Bitcoin) or for a network that is not Base or Optimism. Those tokens would be sent to an address that exists on the wrong network, and they cannot be recovered. The amber warning on the Receive screen is there to remind you every time.

If you are unsure what network the sender is using, ask before they send. A one-line question is cheaper than a mistake.