Sertopia

How to Purchase Polygon NFTs on OpenSea

Polygon is a blockchain that provides scalable, secure and instant transactions with Ethereum currencies like ETH, USDC, DAI.

This guide explains several of the advantages to buying NFTs on Polygon:

  • There are no more costly wallet initialization fees. 
  • Selling and buying NFTs is gas free.
  • Gas fees are only required when transferring ETH funds to the Polygon network.

Please note that buying an NFT on Polygon requires using Polygon ETH. In order to spend your Ethereum currencies on Polygon, you must first “bridge” them across to the Polygon blockchain.

1. Set Up MetaMask

First, install MetaMask as a browser extension on any compatible browser. Then you should see the fox icon on the top right on your browser.

Click it and do the following steps:

  1. Click on the “Create a Wallet” button.
  2. Create a new password.
  3. View and save your secret pass phrase. It is used to recovery your account.

For more details, see Polygon Docs.

2. Configure Matic Network on MetaMask

For getting ETH (Polygon) and purchasing NFTs, you need to configure Matic Network on your MetaMask.

  1. Click MetaMask icon on your browser.
  2. Click the network drop-down menu. Probably the default network is “Ethereum Mainnet”.
  3. On the drop-down menu, click “Custom RPC” and set the correct value in forms as below:
  4. Click “Save” button.

For more details, see Polygon Docs.

3. Get ETH (Ethereum) From Somewhere

Get ETH (Ethereum) from somewhere e.g. Binance, Coinbase, bitFlyer,…

For more details, see Ethereum Page.

4. ETH (Etherum) -> ETH (Polygon) on OpenSea

OK, you’re ready for convert your ETH (Ethereum) to ETH (Polygon)!

Go to OpenSea and login.

Please check the Ethereum Mainnet is selected on your MetaMask at this point.

Then, click the Wallet icon on the top right on OpenSea.

Click the “More” button on the right of “ETH (Ethereum)”

Click “Bridge to Polygon”.
The popup opened, so enter the ETH (Ethereum) value that you want to bridge to Polygon.

Click “Convert tokens”.
The gas fee is high, so let’s wait for the moment it will be cheaper while taking a cup of coffee☕

When it’s done, you should see that your balance of ETH(Polygon) has increased on your wallet of OpenSea.

5. Purchase NFTs on OpenSea

Now you can purchase NFTs on OpenSea with Polygon.

6. Sertopia

Now it’s time to get your citizen from sertopia click here or search Sertopia on opensea. How rare is my citizen? click here to check rarity.

7. Discord

Join to the Discord Group after receiving ownership of a citizen of Sertopia.

resources : Opensea Docs , Polygon Docs , hdks , Bluehawk Crypto 

 

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