What: We are now returning additional rarity data fields for collections that have enabled rarity by their creators. This rarity data will be returned by the /asset and /assets endpoint, as well as a new boolean parameter indicating whether the creator has enabled rarity will be returned in the Collection model via the /collection, /asset, /assets and /events endpoint.

What: we are discontinuing support for Wyvern order posting to the OpenSea shared storefront contract on Monday, July 25th. This means that we will no longer accept any Wyvern programatic order submissions, and you will receive an error if you attempt to hit the endpoint.

We’ve completed our investigation into performance issues that were impacting our API and SDK and have now restored access to programmatic orders through our API and SDK.

We’ve released v4.0.0-beta of our SDK which introduces support for fetching and posting of offers and listings on the new Seaport contract. Developers can begin to test against this beta version on Rinkeby.

We are investigating performance issues that are impacting our API and SDK. On May 20, we disabled programmatic orders to allow us to investigate and work towards a resolution. We expect programmatic orders through our API and SDK will be back up in the next week, as soon as we resolve the performance issues.

What: Starting today, we are no longer requiring an API key to make requests to our Testnets API endpoints.

We’ve launching a beta version the Stream API, a new websocket-based service that enables developers to receive events as they occur across our marketplace.

What: We're going to be making a small addition to the response on our /events endpoint to add event_timestamp, which will be a more accurate representation of when the event took place.

What: We’re now requiring that the side parameter must be included in all requests to the /wyvern/v1/orders endpoint, as was previously announced. This parameter is used to filter the response to either buy or sell orders and requests will now fail if they don’t include this parameter.

What: As of April 26, we will require the side parameter to be included in all requests to the /wyvern/v1/orders endpoint. This parameter is used to filter the response to either buy or sell orders and was previously optional. Moving forward, requests will fail if they don’t include this parameter.