# buying an nft on opensea with a wallet you funded from an exchange

Connect MetaMask on OpenSea, hold the gas token of the chain the NFT is on, and match the collection's contract before you click anything. Buy now is a purchase transaction you confirm in MetaMask and pay gas on. Make offer is a signature, paid in the chain's wrapped token, WETH on Ethereum, and nothing moves until a seller accepts.

## the wallet and the gas

1. **Install MetaMask from MetaMask's own site.** OpenSea connects it and most other browser wallets, and says to take the extension link from the provider's website.
2. **Connect it.** On opensea.io, click Connect wallet, pick MetaMask and follow its prompts. Connecting can ask for a signature; OpenSea counts connecting among what a signature request authorises.
3. **Fund it on the NFT's chain.** Gas is paid in the chain's own token: ETH on Ethereum, ETH on Robinhood Chain. OpenSea's gas-in-stablecoins option is for email-login wallets only, not MetaMask. From the exchange, withdraw that token on that network to your MetaMask address ([the checks](/exchanges/withdraw-to-wallet/)). For Robinhood Chain, that's ETH on Ethereum, [bridged over](/robinhood-chain/bridge/).

## find the chain the nft is on

OpenSea filters by chain, so MetaMask needs no chain switch to browse. Pick the chain in the filter; the collections view has one labelled Robinhood Chain. On an item, the About and Blockchain details tabs name the chain, the token ID and the contract.

OpenSea says checkout can also pay for an item on one chain with funds on another, without bridging, except for Blur listings.

![OpenSea's collections view on Trending and 1d with the Chains list open and Robinhood Chain picked: Goat Street, Hashcats and RH MACHINES lead, with floor price, top offer and 1D volume.](https://apebrief.com/assets/media/opensea-chain-filter.png)

## check the collection

- **The badge.** A blue checkmark on a collection means it belongs to a verified account and has significant interest or sales. OpenSea says a badge is not an endorsement.
- **The contract.** Compare the contract on the item's Blockchain details tab with the address the project publishes on its own site. A name is free to copy; a contract isn't. The obvious URL can even be a dead page: [one Robinhood Chain collection's is delisted](/robinhood-chain/stonkbrokers/), and the real one sits at another slug.
- **The history.** OpenSea's own advice: research the seller, the collection, the NFT and its history first, because on-chain transactions can't be reversed.

![An OpenSea item page from the StonkBrokers collection, Details tab, Blockchain details open: the contract address, Token ID 1, Token Standard ERC721 and Chain Robinhood Chain. Wallet masked.](https://apebrief.com/assets/media/opensea-item-details.png)

## buy now is a transaction

Click Buy now on the item page. OpenSea shows a Checkout and hands MetaMask a transaction to buy at the listed price. You pay the price and the gas. It's final, and gas isn't refunded if the transaction fails. Read the MetaMask window, not only OpenSea's.

![A listed StonkBrokers item on OpenSea with Buy Now and Make Offer both in view, nothing clicked. Wallet and balances masked, market prices left as they are.](https://apebrief.com/assets/media/opensea-item-buy.png)

## make offer is a signature

1. On the item page, click Make offer.
2. Fill in an amount using the chain's wrapped token, WETH on Ethereum, plus a duration: 30 days by default, 6 months at most.
3. Click Review item offer, then sign in MetaMask.

The first offer in a new currency, like WETH, may ask for a one-off gas payment to enable it; offers after that are free. The offer is a bid a seller can fill later with nothing more from you. When one accepts, the seller pays the gas and the purchase is final. By default, cancelling costs no gas.

To get WETH: click your wallet balance at the top right of OpenSea, pick Swap, and swap ETH for it. That's a transaction and costs gas.

A collection offer is a single offer spanning an entire collection, and just one NFT can fill it.

![OpenSea's Make offer window open on a StonkBrokers item, amount empty, nothing submitted. Wallet and balances masked.](https://apebrief.com/assets/media/opensea-offer-form.png)

## telling them apart in metamask

| you click | MetaMask asks for | gas | what it does |
|---|---|---|---|
| Buy now | a transaction | yes | buys at the listed price, final |
| Make offer | a signature | no, after the first one in that currency | a bid a seller can fill later |
| first offer in WETH | a transaction | once | lets that token fund offers |
| Swap to WETH | a transaction | yes | wraps ETH |

OpenSea says every signature request on it comes from Seaport, its trading contract, and never to sign a wallet request that an email prompted.

## fees, as opensea publishes them

- **OpenSea's fee** is on the seller: typically 1% of a sale, already inside the price you see.
- **Creator earnings**, where enforced or where the seller includes them, come out of the price you pay, not on top.
- **Gas** goes to the network, not to OpenSea. The buyer pays it on Buy now, the seller when accepting an offer.

OpenSea states that its fees may change at any time and are determined when a listing or offer is placed. Check them at checkout, not here.

Where the money comes from before this step: [from an exchange to on-chain](/exchanges/to-onchain/).

## related questions

- **How do I get crypto from an exchange onto Solana, Hyperliquid or Robinhood Chain?** Buy on the exchange, withdraw to your own wallet on the network your next stop uses, then trade there. SOL on Solana for Axiom, Photon or Jupiter. USDC on Arbitrum for Hyperliquid, unless the exchange sends there directly. ETH on Ethereum, then bridged, for Robinhood Chain.
- **How do I send crypto from an exchange to my own wallet?** Copy the address from the wallet's receive screen and pick the network the wallet showed you, not the cheapest one. A memo is only for a receiving side that asks for one. Send a small amount first, then the rest.
- **How do I bridge onto Robinhood Chain?** You need ETH on 4663 for gas even if you only want a token. Use the official bridge path, not a DM. Confirm on Blockscout for that chain.
- **Where do StonkBrokers trade?** Robinhood Chain, not Solana. OpenSea chain filter, or the project AMM. Not a buy call. If you cannot add 4663 you cannot buy it.

## how we know: every number on this page

- OpenSea connects MetaMask and most other browser wallets **MetaMask** (https://support.opensea.io/en/articles/8867089-what-crypto-wallets-can-i-use-with-opensea), checked 2026-09-26
- get the wallet extension from the provider's own site **provider's** (https://support.opensea.io/en/articles/8867129-how-can-i-stay-safe-and-protect-my-nfts), checked 2026-09-26
- connecting: Connect wallet, pick the wallet, follow its prompts **Connect** (https://support.opensea.io/en/articles/8866951-how-do-i-log-in-to-opensea-with-a-web3-wallet), checked 2026-09-26
- gas is paid in the native token of the chain, on that chain **native** (https://support.opensea.io/en/articles/8867083-what-are-gas-fees), checked 2026-09-26
- paying gas in stablecoins is for email-login wallets only, not MetaMask **email** (https://support.opensea.io/en/articles/14007857-do-i-need-a-chain-s-native-token-to-pay-for-gas-fees), checked 2026-09-26
- Robinhood Chain's gas token is ETH **ETH** (https://docs.robinhood.com/chain/gas-and-fees/), checked 2026-09-26
- OpenSea filters by chain, so the wallet needs no chain switch to browse **filter** (https://support.opensea.io/en/articles/8867088-how-can-i-switch-my-wallet-to-other-blockchains-while-using-opensea), checked 2026-09-26
- OpenSea's blog names Robinhood Chain in its chain filter and says its NFT collections trade there **Robinhood** (https://opensea.io/blog/articles/robinhood-chain-is-live-on-opensea), checked 2026-09-26
- on 23 Sep 2026 OpenSea's collections view had a chain filter labelled Robinhood Chain **Robinhood** (our capture, shot rh-trade, 23 Sep 2026, logged out: OpenSea's collections view with the filter chip 'Robinhood Chain' applied and a Chains list below it), checked 2026-09-23
- OpenSea's help center chain list does not name Robinhood Chain **not** (https://support.opensea.io/en/articles/8867082-which-blockchains-are-compatible-with-opensea), checked 2026-09-26
- an item page names its chain, token ID and contract **Blockchain** (https://support.opensea.io/en/articles/8866946-review-your-item-page), checked 2026-09-26
- checkout can pay with funds on another chain, except for Blur listings **cross-chain** (https://support.opensea.io/en/articles/10827963-how-can-i-purchase-on-a-different-blockchain-using-opensea), checked 2026-09-26
- what a collection's blue checkmark means, and that it is no endorsement **blue** (https://support.opensea.io/en/articles/8867072-what-is-a-verified-account-or-badged-collection), checked 2026-09-26
- OpenSea's own advice before buying, and that the purchase can't be reversed **irreversible** (https://support.opensea.io/en/articles/8867129-how-can-i-stay-safe-and-protect-my-nfts), checked 2026-09-26
- one collection's obvious OpenSea URL is a delisted page, and the verified one sits at another slug with the project's contract **no** (https://opensea.io/collection/stonkbrokers), checked 2026-09-26
- Buy now opens a Checkout and a wallet transaction at the listed price, and it is final **Buy** (https://support.opensea.io/en/articles/8866966-how-do-i-buy-fixed-price-nfts), checked 2026-09-26
- the buyer pays gas on Buy now, the seller on an accepted offer **gas** (https://support.opensea.io/en/articles/8867014-who-pays-the-gas-fees-on-opensea), checked 2026-09-26
- gas is not refunded when a transaction fails **non-refundable** (https://support.opensea.io/en/articles/8867083-what-are-gas-fees), checked 2026-09-26
- the offer steps, the default and maximum duration, the one-off gas for a new currency, and gas-free cancelling **30** (https://support.opensea.io/en/articles/8866977-how-do-i-make-an-offer-on-nfts), checked 2026-09-26
- an offer needs the chain's wrapped token, WETH on Ethereum, and is a bid filled later with no further action; wrapping costs gas **WETH** (https://support.opensea.io/en/articles/8866978-what-s-weth-how-do-i-get-it), checked 2026-09-26
- a collection offer covers the whole collection, fills once, moves nothing until accepted, and is final once accepted **collection** (https://support.opensea.io/en/articles/8866980-what-is-a-collection-offer), checked 2026-09-26
- what a signature request authorises, and that OpenSea's all come from Seaport **Seaport** (https://support.opensea.io/en/articles/8867119-what-does-a-typed-signature-request-look-like), checked 2026-09-26
- never sign a wallet request prompted from an email **email** (https://support.opensea.io/en/articles/8867129-how-can-i-stay-safe-and-protect-my-nfts), checked 2026-09-26
- OpenSea's fee is 1% on selling, inside the displayed price; fees can change and are set when a listing or offer is made **1%** (https://support.opensea.io/en/articles/8867091-what-fees-do-i-pay-on-opensea), checked 2026-09-26
- creator earnings come out of the item price the buyer pays; gas goes to the network, not OpenSea **creator** (https://support.opensea.io/en/articles/8867091-what-fees-do-i-pay-on-opensea), checked 2026-09-26

## next

- [How do I get crypto from an exchange onto Solana, Hyperliquid or Robinhood Chain?](https://apebrief.com/exchanges/to-onchain/): Buy on the exchange, withdraw to a wallet on the network your next stop uses, then trade there: SOL on Solana for Axiom, Photon or Jupiter; USDC for Hyperliquid, on Arbitrum unless your exchange sends to Hyperliquid directly; ETH on Ethereum, bridged over, for Robinhood Chain.
- [How do I bridge onto Robinhood Chain?](https://apebrief.com/robinhood-chain/bridge/): The canonical bridge is the native route in and out; deposits typically confirm within 10 minutes and withdrawals sit behind a seven day challenge period.
- [Where do StonkBrokers trade?](https://apebrief.com/robinhood-chain/stonkbrokers/): StonkBrokers, 4,444 NFTs on Robinhood Chain, trades on OpenSea as the verified collection at opensea.io/collection/stonkbrokers-434284142, contract 0x539c…abf0.
- [What are you all trading Robinhood tokens on?](https://apebrief.com/robinhood-chain/where-to-trade/): Tokens on Robinhood Chain, chain ID 4663, trade on Uniswap, 1inch, OpenSea and Axiom, and inside Robinhood Wallet.

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HTML version: https://apebrief.com/exchanges/opensea-buy/ · figures checked 2026-09-26