How to Get Your Reddit Ads API Key

Accessing the Reddit Ads API involves registering an OAuth 2.0 application, requesting specific Ads-related OAuth scopes, and obtaining allow-list approval from Reddit's ads or partner team for full campaign management capabilities. Unlike the heavily restricted and monetized Reddit Data API, the Ads API has been expanded and refined, with the introduction of version 3, enhanced documentation, and a partner program to encourage ad integrations. Advertisers can use the Conversions API without full allow-listing, which simplifies server-side conversion event tracking. The approval process for full Ads API access is informal and often based on advertiser status or spending levels, with no public trial tier like Pinterest. By July 13, 2026, a new schema requirement mandates that all ad groups and Campaign Budget Optimization (CBO) campaigns include a conversion_pixel_id. Unified.to offers a single API solution to manage multiple advertising platforms, including Reddit, while handling OAuth credentials and operational details, although end advertisers must still navigate Reddit's allow-list approval independently.