Trusted listing decisions for open, creative marketplaces, powered by AI

The AI content moderation platform for marketplaces built on originality. Scan listings, images, reviews, and messages. Enforce authenticity and safety policies. Stay compliant with DSA, OSA, and beyond.

  • Enforce handmade and vintage standards across millions of unique listings.

  • Reduce false positives so legitimate sellers stay open and keep selling.

  • Meet DSA, OSA, and INFORM Act obligations with built-in audit trails.

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THE CHALLENGE

An open marketplace, open to risk

When every listing is one of a kind, moderation cannot rely on product codes or keyword filters. Evaluating images, descriptions, reviews, and seller behavior requires contextual AI. With DSA, OSA, and emerging US obligations expanding, the pressure on existing enforcement systems is real.

Authenticity at Risk

Distinguishing genuine handmade and vintage items from mass-produced imports or undisclosed AI art across millions of listings.

Seller False Flags

Aggressive automation suspends legitimate artisans without clear explanation, eroding seller trust and driving your best creators away.

Regulatory Pressure

Meeting DSA transparency requirements, OSA protections for minors, and emerging US compliance rules across a global seller base.

How Checkstep solves this

One platform to scan listings, enforce authenticity and safety policies, and meet regulatory obligations across your entire marketplace.

Policy control

Define and enforce custom rules for handmade standards, vintage claims, and prohibited items across every listing surface.

AI detection

Multimodal AI that evaluates listing images, text, and seller patterns to catch counterfeits, spam, and unsafe products.

Workflow automation

Route edge cases to human reviewers while automating clear violations, cutting queue volume and review fatigue.

Compliance reporting

Generate DSA transparency reports, OSA audit trails, and INFORM Act data exports without manual assembly.

Results from complex platforms

90%
Automated moderation across high-volume listing pipelines.
93-99%
Precision rates achieved across policy enforcement decisions.
10,000x
Faster validation compared to fully manual review workflows.

"Checkstep's solution has allowed us to rapidly scale a system that helps us to pinpoint major abuse vectors and address them quickly."

Head of Trust & Safety
Global Platform

Why not build in-house?

"We built our own models"

Custom classifiers handle known violations. But new threats like undisclosed AI listings and shifting regulations demand constant retraining. Checkstep complements your stack so engineers stay on marketplace features.

"Moderation is core to us"

Policy and enforcement should stay core. But the infrastructure underneath does not need rebuilding every time regulations shift. Checkstep provides the engine; you keep full control.

"We need full control"

Checkstep is API-first and fully whitelabel. You own the policies, the data, and every enforcement decision. We provide the moderation engine that makes your rules work at marketplace scale.

Faster Deployment

Go live in weeks with pre-trained models and flexible APIs built for marketplace scale.

Lower OpEx

Cut review volume and infrastructure costs by automating up to 80% of moderation tasks.

Regulatory Peace of Mind

Stay ahead of DSA, OSA, and emerging US compliance rules without continuous engineering rebuilds.

Protect your marketplace with confidence and stay audit-ready

Join the platforms that trust Checkstep to enforce integrity, protect sellers, and meet compliance at global scale.

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