OpenSea API will no longer support API requests with non-versioned paths. Starting August 24th, all API requests must use one of the v1/ or v2/ prefixes to make API calls.
On August 15th, we will run a 4-hour brownout from 11am-3pm Central Standard Time where accessing a non-versioned path will return an error.
On August 17th, we will run a 8-hour brownout from 10am - 6pm Central Standard Time where non-versioned path will return an error.
On August 24th, non-versioned requests will be disallowed.
If you have any questions or concerns, reach out to OpenSea in the Discord dev-support channel.