How to Get Your Amazon Ads API Key
Blog post from Unified.to
The process of obtaining Amazon Ads API access in 2026 involves navigating a complex setup that uses OAuth 2.0 through Login with Amazon (LWA) rather than a single API key, requiring five distinct credentials: Client ID, Client Secret, Access Token, Refresh Token, and Profile ID. The procedure spans two portals—developer.amazon.com for LWA Security Profile creation and the Amazon Ads Partner Network Console for API application—and necessitates application approval, which varies in duration depending on whether the applicant is a Direct Advertiser or a Tool Provider/Agency. Given the absence of a sandbox environment for the Advertising API, only production access is available, necessitating careful planning. The approval process for Direct Advertisers takes 2-3 business days, while it can take several weeks for Tool Providers and agencies due to a more thorough review. Amazon's API framework emphasizes secure credential handling, regional endpoint specificity, and proactive token refresh to address common error-prone areas such as account confusion and profile propagation delays. Unified.to offers an integrated solution that simplifies the complexities of Amazon Advertising's OAuth flow and credential structure by providing a single API across multiple advertising platforms, thus abstracting many of the ongoing maintenance challenges associated with Amazon's API.