get
https://api.twoboxes.io/api/v1/product-variants
Returns a paginated list of product variants matching the provided filters. Before executing the search, merchant IDs are pre-filtered against the caller's read permissions via the identity provider. Supports filtering by merchant, product type, lifecycle status, barcode (UPC/EAN), variant display name, SKU, and storefront variant ID. Results are cursor-paginated using the next_page token returned in each response.