Question 1

How to upload a collection to IPFS?

Accepted Answer

How to Upload Your Assets and Metadata to IPFS

Follow this easy 4-step guide to upload your images and metadata to IPFS using Filebase or Pinata, and link them correctly for your NFT project. At this end of this guide, you will have one CID for your assets (images) and one CID for your metadata.

Step 1: Upload Your Assets Folder

Make sure you already have generated a collection using our generated and extract all the files from the zip you downloaded.

Create an account on Filebase or Pinata.
Log in to your IPFS provider account and upload the assets folder.
Once uploaded, you'll receive an IPFS CID. Save this CID—you will need it later.

Step 2: Regenerate Your Metadata

Visit NFT Generator Metadata Tool.
Click "Choose file" and select the metadata.json from your metadata folder. Your collection's name and description will auto-populate if already set.
In the "Image URL Prefix" field, enter: ipfs://YOUR_ASSETS_CID/. Make sure to replace YOUR_ASSETS_CID with the CID from Step 1, and don't forget the / at the end.
Click "Generate" to update your metadata.

Step 3: Upload Your Updated Metadata

Go back to your IPFS Provider account.
Upload the newly generated metadata folder.
You'll

Question 2

How much does it cost to deploy a smart contract?

Accepted Answer

To deploy a smart contract using onemint you will only need to pay gas fees. Onemint does not charge to create a smart-contract.

Question 3

How long does it take for my NFT to appear on Opensea?

Accepted Answer

There are two ways to import a collection to Opensea: by creating a smart contract or by manually uploading your images. When you deploy a smart contract, Opensea will automatically import the collection after the first NFT has been minted. As more NFTs are minted, they will gradually appear on Opensea.

If you see your NFT on Opensea but the image or name is not displayed, you may need to refresh the metadata. To do this, follow the instructions in this article: How to refresh the metadata on Opensea?

Question 4

Which blockchains do you support?

Accepted Answer

We currently support those networks to deploy your smart contract:

Ethereum
Polygon
Base
Solana
Eclipse
ApeChain
Binance
Turbo
Abstract
Berachain

If you need another network, please contact us.

Question 5

How to verify a smart contract?

Accepted Answer

First go to contract and click "verify":

When verifying a smart contract on Etherscan or Polygonscan, those are the options you need to specify: If deployed in 2025, choose v0.8.20+commit.a1b79de6and paris EvmVersion

On the next page we set optimisation to "yes"

Now we go to step 4 on our dashboard and find the smart contract source code:

We copy the contract source code and we paste it on ETH/Poly scan:

We now delete the constructor ABI displayed as an example on ETH/Poly scan:

And we copy our constructor ABI from step 4 under the smart contract source code:

Once all this has been done we can click verify and it will be done.

After verifying you can activate the proxy features of the contract to be able to interact wi

Question 6

How do I upload my collection to opensea?

Accepted Answer

Marketplaces such as Opensea are like Ebay, they are a platform for people to resale their NFTs. The majority of NFT collections first do what is called an "initial sale". An initial sale happens from the collection website where people can buy one or many NFTs, also called minting. Once an NFT is minted, it will automatically appear on marketplaces like Opensea where you can choose to resale your NFTs.

In order to do an initial sale, you have to first deploy a smart contract. A smart contract is required because this is where the NFT ownership is stored and can prove you are the owner of which NFT.

Your alternative is to upload your entire collection to Opensea manually (it cannot be automated) or deploy a smart contract and airdrop the entire collection to yourself (costly).

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