Newegg Marketplace API
Seller integration API for the Newegg marketplaces covering item, order, shipping-label, RMA, datafeed, report, seller, and SBN management. Requests and responses are JSON or XML, authenticated with per-seller API Key and Secret Key headers scoped by seller ID.
Documentation
Documentation
https://developer.newegg.com/newegg_marketplace_api/
GettingStarted
https://developer.newegg.com/newegg_marketplace_api/newegg-developers-quick-guide/
Authentication
https://raw.githubusercontent.com/api-evangelist/newegg/refs/heads/main/authentication/newegg-authentication.yml