Next steps on Seaport migration
Blog iconOpenSea for Developers
Jun 14
Earlier today, we announced that we’ve started to migrate to Seaport, a new web3 marketplace protocol designed for safely and efficiently buying and selling NFTs. Following up on our detailed migration guide for developers that we had shared a few weeks ago, we’re highlighting the implications for developers at this milestone. To recap, here’s what developers can expect from today (June 14) forward: June 14 ✅ API: Begin using the new Seaport offers and listings endpoints on Mainnet ✅ API: Beg...

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Next steps on Seaport migration

Next steps on Seaport migration

OpenSea for Developers

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Open-sourcing Seaport data abstraction
Blog iconOpenSea for Developers
Jun 14
Over the next few days, OpenSea will be migrating to Seaport, a brand new web3 marketplace protocol designed for safely and efficiently buying and selling NFTs. We’re going to be one of the first marketplaces using the core Seaport smart contract to build new features for the OpenSea community. Seaport as a protocol is decentralized and open source - anyone can use it, with no contract owner, upgradeability, or other special privileges. In that spirit, we’re also sharing the Seaport Dune abst...
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Blog iconOpenSea for Developers
Jun 10
Horton Hears A Who!
Horton Hears A Who!Neutralizing a critical vulnerability in Wyvern Protocol — TL;DR — In Q1 of 2022, a security researcher reported a critical vulnerability in the Wyvern 2.2 smart contracts that powered OpenSea. The vulnerability was neutralized before it could be exploited, and users are no longer at risk. We awarded the vulnerability reporter a bug bounty. Historical blockchain logs provide no indication that the vulnerability was ever exploited in the wild. — The “Horton Principle” is a m...
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Blog iconOpenSea for Developers
May 25
Migrating to the Seaport protocol
Last week, we unpacked the early details of OpenSea’s new open-source protocol – Seaport – for the developer community. Seaport will become the foundation for OpenSea’s core products, unlocking a range of new use cases for creators, collectors, and the broader developer ecosystem. The protocol is non-custodial, non-upgradeable, and decentralized at its core — it belongs to the community first & foremost. And in that spirit, we’re inviting the community to join us in early testing via a $1M Co...
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Blog iconOpenSea for Developers
May 16
OpenSea Developer Newsletter: Edition 1
Hello Devs, Welcome to the inaugural OpenSea Developer Newsletter! In this first edition, we’re sharing a recap of recent news and updates to the OpenSea Developer platform - including our API, SDK and developer events. Let’s dive in!Product UpdatesStream API now in betaOn May 5th, we launched a beta version of the Stream API, a new websocket-based service that enables developers to receive events as they occur across our marketplace. We’ve built the Stream API to better support a range of us...
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Blog iconOpenSea for Developers
May 16
“Hello NFT World” Hackathon Recap
That’s a wrap! The Replit and OpenSea virtual hackathon “Hello NFT World” has ended! We’d also like to give a shoutout to our partners, DoraHacks, and Buildspace.Hello World meets web3 🖥️The Hello NFT World Hackathon encouraged the advancement of web3 by bringing together creators, artists, developers, and entrepreneurs as “BUIDLers” to create innovative web3 NFT Projects. Together, they pushed the boundaries of NFTs and surfaced new types of utility. Over the course of eight days, projects ...
Streaming the OpenSea
Blog iconOpenSea for Developers
May 6
Today we’re launching a beta version the OpenSea Stream API, a new websocket-based service that enables developers to receive events as they occur across our marketplace. With the massive growth in the NFT ecosystem, we know that it’s becoming increasingly challenging to rely solely on our REST APIs to stay up-to-date across a growing number of items and collections. The need to continuously poll these endpoints to refresh the data in your service can be resource-intensive and inefficient. We...