Add money

How to fund your 4rho wallet with USDC.

Through Coinbase (in-app)

The fastest path. From the wallet menu, tap Add money.

1. Pick a payment method — debit card, bank transfer, or your existing Coinbase balance.
2. Enter an amount in your local currency.
3. Coinbase shows you the all-in fee and the USDC amount you'll receive.
4. Confirm. The USDC arrives in your Polygon wallet within a few minutes.

4rho doesn't charge a fee on this. The fee shown in the Coinbase checkout is theirs.

From an exchange

Withdraw USDC from any exchange (Coinbase, Binance, Kraken, etc.) and set the network to Polygon. Send to your 4rho address.

Important: USDC on Ethereum is a different token from USDC on Polygon. Always pick Polygon as the withdrawal network. Sending to the wrong network may not be recoverable.

From another wallet

Send USDC directly from any Polygon wallet to your 4rho address. No bridge needed. This is just a normal token transfer.

What about minimums and limits?

There's no 4rho-side minimum or maximum. Coinbase has its own minimums (typically a few dollars) and per-day limits on cards. Exchange withdrawals have their own minimums and may require ID verification above certain thresholds.

When can I trade?

As soon as USDC shows up in your address. The portfolio page balance updates within a few seconds of the transaction confirming.

There's no separate "deposit to platform" step — your wallet balance is your trading balance. Funds in open BUY orders are reserved on-chain and shown as "in open orders" in your portfolio breakdown.