Nft Marketplace: Trade NFTs Anytime, Anywhere | Instantly Buy & Sell NFTs

Introducing the OpenSea mobile app

Discover NFTs by category, track the latest drops, and follow the collections you love with the new OpenSea mobile app. Visit the App Store and the Google Play store to download.

Making NFTs available to all

The calls for a mobile app have been growing, and we’ve been hard at work bringing it to life. Making NFTs available to all is one of our core missions here at OpenSea, and we believe this is a big step in an exciting direction.

NFTs in the palm of your hand

The new OpenSea mobile app makes discovering and managing your NFTs easier than ever. You can now browse new work from your favorite artists, check what’s hot on the OpenSea rankings page, visit our help center, and read the OpenSea blog on the go.

We’ll be improving the app over time, based on community ideas and our feature-filled roadmap, so keep track of us on Twitter and Instagram for all the latest developments.

Introducing Seaport Protocol

Today, we’re excited to announce Seaport, a brand new web3 marketplace protocol for safely and efficiently buying and selling NFTs. We’re incredibly excited to be building on top of it, and while we’ve created the first iteration of Seaport, this protocol is not just for OpenSea – but for all builders, creators and collectors of NFTs. The core smart contract is open source and inherently decentralized, with no contract owner, upgradeability, or other special privileges. 

Seaport Deep-Dive

Most current NFT marketplaces only allow for listings where one party agrees to supply an NFT and the other agrees to supply a payment token. Seaport takes a different approach: offerers can agree to supply a number of ETH / ERC20 / ERC721 / ERC1155 items — this is the “offer.” In order for that offer to be accepted, a number of items must be received by the recipients indicated by the offerer — this is the “consideration.”

Every Seaport listing consists of the same basic structure, including an improved EIP-712 signature payload that clearly outlines what can be spent and what will be received back by whom. However, there are a number of different ways that the fulfiller can choose to have listings fulfilled.

The most straightforward fulfillment option involves choosing a specific listing and creating an implied “mirror” of that listing, where the fulfiller receives all offer items and supplies all consideration items. Seaport also supports the option to fulfill any number of listings at once through a set of “fulfillments” — each fulfillment corresponds to a single item transfer and indicates a group of offer items that the submitter can match with corresponding consideration items. As long as each consideration item on each listing is fully credited after all fulfillments have been applied, the offerers can leverage their coincidence of wants and complete their transfers. This enables elimination of redundant transfers (which are generally the most gas-intensive component of the protocol) and allows for novel and efficient transactions.

Open Source

This is only the beginning for Seaport. We built the initial version of the protocol to unlock use cases and optimizations that creators and collectors expect from a modern web3 marketplace. However, what we’ve really built is a foundation to empower the developer community to work together on this primitive. OpenSea does not control or operate the Seaport protocol — we will be just one, among many, building on top of this shared protocol. And so, as adoption grows and developers create new evolving use-cases, we are all responsible for keeping each other safe. We urge all interested smart contract developers to take a look and help optimize, simplify, and review potential areas of security concern.

The Seaport contracts emphasize efficiency and contain a significant amount of low-level assembly code. We’ve included a reference implementation that replicates the functionality of the optimized contract without any assembly code to enhance readability. We highly recommend contrasting the two implementations to familiarize yourself with the code (or even as an educational resource!) and encourage you to review and ask questions directly on the GitHub project — ongoing community engagement and participation is critical to the ongoing security and evolution of the protocol.

OpenSea Acquires Gem to Invest in ‘Pro’ Experience

At OpenSea, our mission is to bring the power and potential of NFTs to more people around the world. As the NFT community grows, we’ve recognized a need to better serve more experienced, “pro” users, and offer more flexibility and choice to people at every level of experience. 

To invest in the future of the pro community, OpenSea has acquired Gem, the leading NFT marketplace aggregator. 

Gem has built an amazing product with the leading feature set for pro users, growing seemingly overnight in community engagement and enthusiasm. Gem lets you buy NFTs across multiple marketplaces with a single, low cost transaction, and is known for its easy collection floor sweeping, and rarity-based ranking for collections. The acquisition will provide Gem with resources to accelerate their product vision and roadmap. It will also allow us to learn from Gem’s expertise and intuition about the advanced NFT community – and bring the best of Gem’s features to OpenSea. 

We’re excited to invest in Gem’s roadmap, and ultimately welcome more people into the world of NFTs. That said, it’s important for our community to know that when we consider a big decision like the one we’re announcing today, we evaluate all aspects of it thoroughly. We place equal value on the people we’re forging partnerships with, as much as the product and its users. 

We’re Improving the OpenSea Verification Process

As the NFT ecosystem continues to evolve, imitation and plagiarism are growing issues that hinder trust in this space; in a recent blog post, we outlined a number of changes aimed at improving authenticity on OpenSea and increasing trust for our community. 

Our changes cover 2 areas:

    An updated account verification and collection badging system that also broadens the number of creators eligible for verification.

    An automated system to identify, remove, and prevent instances of “copymints” (copies of authentic NFT content).

Account Verification and Collection Badging on OpenSea

Account verification and collection badging on OpenSea are intended to help both creators and collectors by surfacing authentic accounts and content more prominently.

But we’ve heard from our community that eligibility for verification and badging is opaque and the process is slow and cumbersome. So we’re rolling out four changes to improve the system:

    An invite-based account verification system, with broader eligibility criteria

    An updated collection badge

    A new streamlined, in-product notification and application experience

    A dedicated customer support team for verification and badging, with response within 7 days

Please note that while many parts of this process are improving, projects that are currently verified will not lose their existing verification.

The sections below will go into more detail about each of these changes.

Invite-based account verification

To start, any account that owns a collection with at least 100 ETH of volume will be invited to apply for verification. We plan to broaden eligibility soon and introduce additional factors, like presence and activity on Twitter and Discord, when considering who should be eligible for verification. 

This is just the start – we are committed to a future where any authentic creator’s account can be verified, while keeping scammers out of the system.

Updated collection badges

Collection badges are used to identify collections that are owned by a verified account AND have significant interest or sales. Initially, any collection with at least 100 ETH of volume will be eligible for badging. Similar to account verification, we plan to broaden eligibility criteria for collection badging soon.

 Best NFT Marketplaces 

If you want in on the NFT craze, an NFT marketplace is your gateway to participating in the purchase and sale of these digital assets -- from art to music to entire virtual worlds. Think of NFT marketplaces as your Amazon of the digital realm.

There are dozens of NFT marketplaces in existence, and many of them have a specific focus or niche. What should you look for before deciding which one to use, and what are the top NFT marketplaces out there? Here's what you need to know.

OpenSea is the leader in NFTsales. OpenSea has all sorts of digital assets available on its platform, and it's free to sign up and browse the extensive offerings. It also supports artists and creators and has an easy-to-use process if you want to create your own NFT (known as "minting").

Tips for choosing an NFT marketplace

First, remember that an NFT (non-fungible token) simply represents ownership of an asset. Before choosing an NFT marketplace, you'll first want to decide the kind of digital asset you're interested in buying, selling, or creating. Just about anything digital -- the written word, videos, video games, art, collectors items, etc. -- can be tokenized on a blockchain (such as Ethereum (CRYPTO:ETH), the most common blockchain network NFTs are built on), so narrowing down your interest is a good place to start.

Another consideration is the type of tokens supported on a marketplace. Some support a wide variety of tokens. Others are closed marketplaces and utilize a specific proprietary token. When opening an NFT marketplace account, be sure to fund your blockchain wallet with the right crypto or token required to participate in the site's activity. You'll be prompted to link your wallet to the NFT marketplace once you've opened up an account. Also check to see what kind of security the marketplace has in force, and if it has had any issues in the past.

Investing in NFTs

NFT marketplaces are your path to start investing in digital assets, collectibles, and art, but there are lots of options out there. Be sure to choose one that suits your buying and storage needs based on the type of NFT you're after and the crypto you're interested in using for transactions. 

Also be aware that this is a new industry and is highly speculative. Some NFTs may rocket higher in value, but there's no guarantee. The value of digital art and collectibles works much the same as physical art and collectibles: Value is subjective and determined by factors such as uniqueness and the reputation of the artist who made it. Make a purchase -- if any -- with your overall investment strategy, net worth, and investment time horizon in mind.

How to Find an NFT You Love

With so many projects out there, we know it can seem hard to find an NFT you love. Here are a few things you may want to keep in mind to simplify the process. 

    Consider the purpose of purchasing. Are you buying an NFT you’ll use for a profile photo (PFP)? Alternatively, is it purely for art? Is it something you’d display at home? Maybe you’re looking for virtual land? How long do you plan to own the NFT? Asking these questions will help you narrow down the search as you browse.

    Research the project. Start with the official project website. This is a great starting point to understand motivations and goals of the founder(s). Many projects these days have a roadmap with lots of milestones. Does it seem realistic, or is it overly ambitious? Make sure to also check the project’s social media. 

    The founders. Most times, founders drive the vision, future and success of a project. It’s time to introduce two terms: doxxed and undoxxed. Doxxed founders have made their identity publicly known so you are able to research their background/history of success. Undoxxed founders have not revealed their identity and often go by an alias. 

    Join their Discord. You might buy an NFT just for the art, but you shouldn’t overlook the community. Checking out the project’s Discord is usually the best way to get a sense of the community and meet your fellow collectors. Join the discord and ask questions of the community and moderators. Are they helpful and welcoming?

    Research the artist. Artistry takes many forms. Some artists are brilliant and just starting out. Others are accomplished and have a history of other successful projects. At the end of the day, does the art make you feel a certain way? Do you want to support the artist? 

Intro to Crypto Wallets

In this guide, we’ll explain the different types of crypto wallets and recommend ways to secure them. Crypto wallets are the basis of web3 and understanding how they work is essential to protecting your NFTs and cryptocurrencies. Please note, OpenSea is not a wallet provider, and users are solely responsible for keeping their wallet secure. 

How NFT Marketplaces Work

NFTs are bought and sold in marketplaces, ranging from popular non-custodial platforms like Opensea and AirNFTs to custodial ones like Binance and Coinbase. Here's a brief overview of how each of them works:

1. Non-custodial Marketplaces

Non-custodial marketplaces, as you probably already know, require you to access the platform via a web3-compatible wallet like Trust Wallet or Metamask. Buying one will require you to connect the blockchain network's wallet to your NFT account. For example, to buy an NFT on Ethereum-based marketplaces like Opensea or rarible, you must connect an Ethereum wallet. 

2. Custodial marketplaces

On the other hand, custodial marketplaces require you to trade only after verifying their details and complete in KYC. After buying, your NFT, like other coins, will be stored in a section usually known as “Assets” or “Wallets.”  

How to Earn Passive Income via NFTs and DeFi

If you're a cryptocurrency investor, staking is a concept you'll hear about often, but like many crypto concepts, staking can be a complicated or simple idea, depending on how many levels of understanding you're willing to unlock. This guide will cover the basics of staking and how it works as it does, and how you can start earning crypto. 

How to get rich with NFTs

In recent months, the focus on non-fungible tokens (NFTs) has been on the amount of money invested in the sector. While this is certainly the case for many NFT collectors, who explore various NFT marketplaces to find NFT projects that excite them and expect a significant return on investment (ROI), for many, the pleasure of collecting NFTs has much more to do with the emotional value and connection to the artwork itself. If this is the first time you've heard of NFTs, you should probably check out our previous article to learn what NFTs are.