Spaya is an online platform designed to help users in their practice of retrosynthetic analysis and chemistry in general by proposing published and predicted retrosynthesis pathways. Purely data-driven, our algorithms empower users with machine-augmented capacity to navigate potential retrosynthesis in seconds to minutes. The Spaya community of chemists brings a unique opportunity to share expert knowledge and help each others. Enriched by the community for the community, as the the community grows the Spaya algorithms will improve overall time.