As we prepare for OS2 launch, we are making changes to our offer rules to make bidding more fair on OpenSea. On January 28th at 11AM ET, OpenSea will enforce price-based decimal place limits for all offers. Offers in ETH/WETH will follow a tiered precision system based on price range. Please see the table below for more details.

The new Sei Testnet (atlantic-2) is now live onOpenSea testnets and the old devnet (arctic-1) has been deprecated.

Today we introduced a new API endpoint for cancelling orders offchain that use the SignedZone:https://docs.opensea.io/reference/cancel_order

The PolygonAmoy testnet is now live on OpenSea. Amoy replaces Mumbai as the Polygon Proof-of-Stake testnet chain based on Sepolia. Mumbai was based on Goerli, which is deprecated.

Starting today, OpenSea is migrating toSeaport v1.6. There are no interface changes to Seaport, so the methods and events are the same. As a developer, you just need to update to the latest SDK versions to create and submit orders using Seaport v1.6:

• New SDK Releases:<https://github.com/ProjectOpenSea/opensea-js/releases>
  • v7.0.5: replaces Optimism Goerli (deprecated) with Optimism Sepolia
  • v7.0.4: replaces Base Goerli (deprecated) with Base Sepolia
  • v7.0.3: fixes bug in returning errors from API responses
• Events (Analytics) API
  • Get Events (by account) pagination fixed
  • Get Events endpointslimit parameter fixed
• NFT API
  • Get Collection returns two new fields:total_supply (minted minus burned) andcreated_date
  • Get Contract response fieldsupply renamed tototal_supply, added note to the description of the field that this value only returns the value provided from the contract if the contract has a getter fortotalSupply()
  • Get Account andGet Collection fixed returning twitter and instagram usernames

• New Major Version SDK Release (v7.0.0):<https://github.com/ProjectOpenSea/opensea-js/releases/tag/v7.0.0>
• Rate Limits: doubled default rate limits for /v2
• Events (Analytics) API
  • all events now have anevent_timestamp (posix timestamp at which the event occured on the blockchain)
  • transfer events now have annft field
  • cancel events now have the following fields:nft,order_type, andmaker
    • note: API now returns both canceled listings and canceled offers when querying forevent_type=cancel
  • event paymentquantity now returns as a string instead of a number (for compatibility with JavaScript)
  • general purposeGet Events endpoint added
• NFT API
  • added anendpoint for getting payment tokens (has both USD and ETH price for the token)
  • addedopensea_url to the NFT model
  • added validpayment_tokens to the collection response
• Marketplace API
  • addedprice object to offers

Today, we are launching two new endpoints: one endpoint to get the highest bid for an NFT and one endpoint to get the cheapest listing for an NFT.

Over the past 3 months, OpenSea has been closing the feature disparity between the V1 and V2 API. The V2 API is superior to V1 in many ways including:

Previously, OpenSea had been returning the OpenSea CDN url in NFT responses. One example is the List NFT endpoints which returned theNFT Model which includedimage_url. Going forward, theimage_url field returned when listing NFTs, is deprecated.