As the FindCompletedItem is going to be no longer available, are there any alternatives to find the price of completed items? Other than Marketplace Insights API?
An alternative to the findCompletedItems call is the Marketplace Insights API, but please note that this API is restricted and requires eBay Business approval for access.
Please contact the Developer Technical Support team from here: https://developer.ebay.com/my/support/tickets if you are interested in getting access to the Marketplace Insights API.
Please visit the API Deprecation Status page for more details:
eBay Developers Program
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