Open Arsenal

Let Your Listing Do More.

ListingStream is an open source, modular visual commerce platform designed to transform ordinary photographs into intelligent marketing assets while preserving the authenticity of the original image. Unlike traditional AI image generation tools that recreate or alter entire scenes, ListingStream uses a constraint-based compositing engine that inserts sponsored products only within approved regions of a photograph. Every pixel outside the insertion area remains unchanged, providing a trustworthy foundation for industries where image accuracy and transparency are essential.

Originally conceived for real estate, ListingStream introduces a new revenue model for property marketing by allowing approved product placements within listing photo carousels. During the marketing process, advertisers can sponsor carefully selected placement opportunities while homeowners and listing agents share the resulting revenue. Every proposed placement is reviewed through a mandatory human-in-the-loop approval workflow, ensuring that a licensed professional verifies each image before it is published. This approach combines the efficiency of artificial intelligence with human judgment, creating a platform designed around accountability rather than automation alone.

At the core of ListingStream is a collection of modular services that perform scene analysis, depth estimation, surface detection, placement optimization, pixel-preserving rendering, legal compliance validation, fraud detection, and immutable audit logging. The platform also includes an Explainability Layer that documents why each product was placed in a specific location, how the placement complies with platform rules, and why it was approved. A Versioned Listing System records every stage of the image lifecycle, from the original upload through AI drafts, human approvals, certified exports, and marketing variants, creating a complete and transparent history of every listing.

ListingStream also incorporates LexStream AI, a real-time legal intelligence module that continuously evaluates laws, regulations, and industry standards affecting advertising, real estate, and other supported industries. Rather than functioning as a simple legal assistant, LexStream converts regulatory changes into enforceable system rules that automatically guide placement decisions, disclosures, exports, and approval workflows. This allows the platform to adapt to evolving legal requirements while maintaining compliance across multiple jurisdictions and industries.

Beyond real estate, ListingStream is designed as a multi-industry platform through a flexible domain plugin architecture. Organizations can customize industry-specific rules, compliance requirements, workflows, and product catalogs without modifying the underlying platform. Hospitality, retail, automotive, tourism, commercial property, education, manufacturing, and many other industries can leverage the same core technologies while applying their own business logic and regulatory requirements. This modular approach makes ListingStream a scalable foundation for AI-assisted visual marketing across a wide range of commercial applications.

Built under the GNU Affero General Public License v3.0 or later (AGPL-3.0+), ListingStream embraces transparency, collaboration, and community-driven innovation. Every component is designed as an independent module that can be developed, audited, and deployed separately, encouraging contributions while maintaining a secure, explainable, and compliance-first architecture. By combining AI-assisted decision making, mandatory human oversight, immutable auditability, and real-time legal intelligence, ListingStream establishes a new model for trusted visual commerce in an AI-driven world.