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Pay on websites and apps

Connect Arca with WalletConnect or pay a wallet address while checking the app, network, token, amount, fee, and approval request.

Updated

A website may ask you to connect your wallet or send to a wallet address. The website, not Arca, is responsible for the purchase, price, delivery, and support. Availability varies by website, country, network, and token. A listing in Arca Apps means the site is known to work with Arca, not that every service or transaction is guaranteed.

Warning: Approve only requests you started on a website you trust. A familiar name or logo can be copied.

Pay by connecting your wallet

  1. On the website, choose Connect wallet and then WalletConnect.
  2. If the website is on another screen, open Arca, tap the QR scanner, and scan its code. On the same phone, use the website’s Open in wallet or mobile WalletConnect option.
  3. Check that you recognize the app and started the request, then approve the connection.

Connecting shares your public wallet address but does not let the website move money on its own. Any transaction or signature still comes back to Arca for approval.

Before approving a request, check that it matches what you started on the website. Review the token, amount, destination, network, fee, and any warning. A token approval can let the app spend that token later; limit the amount when Arca offers Set a Limit. Reject any request you do not understand.

The website may charge a service fee in addition to the wallet fee shown by Arca.

Pay a wallet address

If the website gives you an address instead of a Connect button:

  1. Go to Send > Send to a wallet.
  2. Choose the exact token and network requested by the website.
  3. Paste or scan the address and enter the exact amount.
  4. Check the address, amount, network, fee, and total, then send.

Arca supports USDC and USDT sends on Base, Optimism, Arbitrum, and Ethereum, but the website may accept only one combination. Do not substitute a cheaper network or a token you used before.

Check the order or disconnect

Use Activity to follow the transfer. If it succeeds in Arca but the order does not update, save the transaction details and contact the website’s support.

When you no longer need a connection, go to Settings > Account > Connected Apps, choose the app, and disconnect it. This stops new requests from that session. It does not undo a transaction, signature, or token permission you already approved.

For safety, open the real website yourself, check its address, and never approve a request only to clear a warning.