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Sponsor runs on Robinhood Chain (chain id 4663). Any EVM wallet works. You need the network added and a little ETH on it for gas.

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Add Robinhood Chain

Open your wallet’s add-network flow and enter: The RPC is public. Every balance and event in these docs can be read from it without an account or gas.

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Bridge ETH

You pay your own Robinhood Chain gas, for claiming and launching alike. The canonical bridge and partner routes are listed in Robinhood’s bridging guide.
  • Claiming: gas is the only cost. The app suggests bridging when your wallet holds 0.0002 ETH or less.
  • Launching: each launch pays the 0.0005 ETH launch fee plus any optional dev buy, plus gas.
Both numbers are canonical on Fees & parameters.
Payouts are WETH. Claims pay WETH (an ERC-20 transfer), not native ETH. Add the WETH token to your wallet to see the balance, and unwrap to ETH whenever you want. WETH on Robinhood Chain:
View on Blockscout
Next: launch a coin, or claim your fees if someone has already directed fees to your handle.