Spy.House is an advertising intelligence platform that helps marketers research competitor campaigns, discover creative ideas, and follow advertising trends. Its ad search covers Facebook and Meta, TikTok, push, in-page, native, and adult advertising, with listings drawn from multiple platforms and more than 150 countries for several ad formats. Users can narrow searches with filters for verticals, keywords, geography, devices, traffic sources, languages, browsers, and operating systems, then save ads and analyze their creatives.

The service also offers tools to download landing pages, generate white pages, and create alternative versions of image or video creatives through its Creative Uniqueizer. Businesses can connect Spy.House data to their own services through an API or link the platform to AI agents that support MCP. Subscription plans provide different levels of search requests and creative processing, while higher-tier options include additional features and a personal manager. Spy.House also publishes guides, case studies, and analytics, and offers a free starting option, annual-plan discounts, promo codes, and a referral program.