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Learn why Harper is open source, how Apache 2.0 works, which repos/plugins are open source or source available, and how Node.js/JavaScript teams can use Harper in commercial apps, contribute code, provide attribution, and get updates.

Official terms and conditions for Harper Hack ’25, a virtual hackathon hosted by Harper. Review eligibility, registration requirements, judging criteria, prize details—including a trip to Tokyo valued up to $5,000—and participant legal obligations.

Answer Engine Optimization (AEO) is the next evolution of SEO. Learn how to prepare your content for Google’s AI Overviews, Perplexity, and other answer engines. From structuring pages to governing bots, discover how to stay visible, earn citations, and capture future traffic streams.

Deploy AI agents at the edge with Harper’s fused stack. Reduce latency, capture feedback, and deliver real-time, adaptive experiences with seamless model deployment.

Stephen Goldberg, CEO of Harper, has been named a 2025 Most Admired CEO by the Denver Business Journal for his leadership and impact on Denver’s tech community.

A leading U.S. auto parts retailer used Harper’s Early Hints technology to overcome Core Web Vitals failures, achieving faster load speeds, dramatically improved indexation, and an estimated $8.6M annual revenue uplift. With minimal code changes, the proof-of-concept validated that even small performance gains can unlock significant growth opportunities for large-scale e-commerce businesses.