🏪 Marketplace Trust & Safety AI · Illegal Listing Detection Software · EU DSA Trust Safety Platform · Counterfeit Detection Marketplace · Prohibited Goods AI · Seller Verification Software

Marketplace Trust & Safety AI — Illegal Listing Detection & Seller Verification Platform for Digital Marketplaces

XPndAI builds bespoke trust and safety AI for e-commerce marketplaces, classified ad platforms, peer-to-peer marketplaces, and two-sided platforms with obligations to detect and remove illegal listings, verify sellers, and comply with EU Digital Services Act (DSA) and UK Online Safety Act (OSA) platform safety requirements. Prohibited goods AI, counterfeit detection, seller KYB, dispute management, and regulator-ready transparency reporting — in one platform. Source code ownership. From $50,000.

WhatsApp — Trust & Safety AI Request Demo →
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€15M
EU DSA fine for systemic risk assessment failure — per infringement
6%
Global annual turnover — DSA maximum fine for very large platforms
$30Bn+
Annual counterfeit goods trade on online marketplaces (OECD)
72hr
DSA illegal content removal requirement for notified content

Marketplace Trust & Safety Workflow

Listing Ingestion AI Classification Risk Scoring Human Review Queue Seller Identity/KYB Takedown Decision Seller Notification & Appeal Law Enforcement Package Regulator Report

Trust & Safety Platform — Core Modules

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Prohibited Goods & Illegal Listing AI Classifier

AI classification of listings across the prohibited goods taxonomy your platform and regulators define. Multi-modal classification: title and description text analysis (keyword patterns, euphemisms, coded language, brand name misuse), image analysis (product appearance, logo detection, watermark analysis, visual similarity to known prohibited items), price and shipping anomaly (pricing significantly below market — counterfeit indicator; non-standard shipping options — controlled substance indicator), seller history cross-referencing (same seller, different listings — pattern detection), and cross-listing correlation (same product listed across multiple accounts — organised operation detection). Configurable prohibited categories covering: counterfeit goods (trademark infringement), weapons and weapon accessories (illegal under jurisdiction rules), controlled substances and drug paraphernalia, illegal wildlife and endangered species (CITES violations), child exploitation material, stolen goods, illegal services, and custom categories per operator policy. Output: risk score, triggered category, evidence bundle for reviewer.

AI Classifier · Core module
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Seller Identity & KYB Verification

EU DSA Article 30 requires platforms to collect and verify trader information before allowing commercial sellers to trade. XPndAI builds the seller onboarding and KYB (Know Your Business) workflow: trader identity collection (name, address, company registration where applicable, bank account details, VAT number — DSA Article 30 fields), identity document verification (government ID, company registration certificate), business verification (company registry check — automated API to jurisdiction registry where available), bank account verification (micro-deposit or open banking verification), trader "best efforts" statement (DSA Article 32 requirement — seller confirms they are only listing legal products), seller risk scoring (new seller with no history + high-value goods category = higher risk for enhanced review), and re-verification triggers (seller behaviour change, complaint spike, new product category entry).

Seller KYB · Core module
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Human Review & Takedown Decision Workflow

AI classification informs human review — trained trust & safety analysts make the takedown decision. XPndAI builds the review workflow: priority-ranked review queue (high-risk AI score → immediate human review; lower-risk → scheduled review), single-screen review interface (listing content, seller history, AI classification rationale, similar past cases, policy guidance — everything needed to make an informed decision), decision options (approve / remove / restrict / escalate / request seller information), decision justification required (policy article, specific reason — creates audit trail for appeals and regulator review), outcome logging (every decision — timestamp, reviewer, decision, justification), seller notification (automated notification of removal decision with policy basis and appeal instructions), and review SLA tracking (DSA requires 72-hour removal of illegal content reported via trusted flaggers — review SLA dashboard tracks compliance).

Review & Takedown · Core module
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Notice & Action — Trusted Flaggers & User Reports

EU DSA Article 16 (notice and action) and Article 22 (trusted flaggers) create specific obligations for how platforms receive and process reports of illegal content. XPndAI builds a compliant notice and action system: user reporting (listing-level report button, structured report form capturing reporter identity, alleged violation type, evidence), trusted flagger priority lane (DSA Article 22 — trusted flagger reports receive expedited processing, separate queue, priority acknowledgement, 72-hour target), trusted flagger account management (approved organisations — IP right holders, law enforcement, NGOs — with verified status and reporting analytics), non-commercial content removal (GDPR-based removal requests, personal data takedown — separate workflow), acknowledgement and outcome notification (DSA requires notifiers to be informed of decision and appeal options), and annual trusted flagger performance reporting (DSA transparency report requirement).

Notice & Action · Core module
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Appeals & Dispute Management

DSA Article 20 requires platforms to provide an effective internal complaint handling mechanism. XPndAI builds a compliant appeals and dispute management system: seller appeal submission (structured appeal form — seller provides counter-evidence, corrected information, or policy challenge), appeal review workflow (second-level review by senior analyst or specialist, independent of the original decision), appeal outcome notification (seller informed of appeal outcome within defined SLA — DSA requires acknowledgment and resolution within reasonable timeframe), out-of-court dispute settlement (DSA Article 21 — platform must provide information about certified out-of-court dispute settlement bodies; XPndAI builds this information flow into the appeals outcome notification), buyer dispute management (buyer reports undelivered goods, item not as described, counterfeit — dispute workflow, evidence collection, resolution), and dispute analytics (pattern analysis — is a specific seller generating disproportionate disputes? triggers enhanced review).

Appeals & Disputes · Core module
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DSA Transparency Report & Systemic Risk Evidence

EU DSA Articles 24 and 26 require platforms to publish transparency reports and conduct systemic risk assessments. XPndAI generates the compliance data infrastructure: transparency report data (content moderation decisions volume, removals by category, trusted flagger reports, appeals outcomes, automated tools used — structured for DSA annual transparency report), systemic risk assessment support (DSA Article 26 for very large online platforms — risk identification, analysis of actual or foreseeable negative effects on fundamental rights, public security, gender violence, public health — XPndAI builds the data collection and documentation workflow for the risk assessment; legal analysis by operator's legal team), Digital Services Coordinator (DSC) evidence package (structured evidence of compliance with DSA obligations — any DSC inquiry or investigation requires evidence of systems functioning as described), and repeat infringer tracking (DSA Article 23 — platforms must have policies for suspending accounts that frequently post illegal content; XPndAI builds the repeat infringer identification and suspension workflow).

DSA Compliance · Core module

Marketplace Trust & Safety Platform — Pricing (USD)

$50K–$120K
Mid-size marketplace
AI classifier + review workflow + DSA reports. 12–20 weeks.
$120K–$400K
Large marketplace
Full T&S platform + seller KYB + appeals. 20–40 weeks.
$400K–$1.5M+
Very large online platform (VLOP)
DSA systemic risk compliance + full platform. 40–80 weeks.

FAQ — Marketplace Trust & Safety Software

What EU DSA obligations does your trust and safety platform address?

The EU Digital Services Act (DSA) creates specific obligations for online platforms and marketplaces. XPndAI's trust and safety platform addresses: (1) Article 16 — Notice and Action: platforms must provide a mechanism for anyone to notify illegal content; XPndAI builds the notice submission form, acknowledgement, processing workflow, and outcome notification; (2) Article 20 — Internal Complaint Handling: platforms must provide an effective internal complaint mechanism; XPndAI builds the appeals workflow with SLA tracking; (3) Article 21 — Out-of-Court Dispute Settlement: platforms must provide information about certified dispute settlement bodies; XPndAI integrates this into appeal outcome notifications; (4) Article 22 — Trusted Flaggers: platforms must give priority processing to trusted flagger reports; XPndAI builds the trusted flagger account management and priority lane; (5) Article 23 — Repeat Infringers: platforms must have policies for suspending serial infringers; XPndAI builds repeat infringer detection and suspension workflow; (6) Article 24 — Transparency Reports: platforms must publish annual transparency reports on content moderation; XPndAI generates the underlying data; (7) Article 26 — Systemic Risk Assessment (VLOP obligation): very large online platforms must assess systemic risks; XPndAI builds the data collection and documentation workflow (legal risk analysis by operator's legal team); (8) Article 30 — Trader Information: online marketplaces must collect and verify trader identity; XPndAI builds the seller KYB workflow. Note: legal compliance and policy decisions remain the responsibility of the platform operator and their legal team; XPndAI provides the technical platform and evidence infrastructure.

How does your AI classifier handle coded language and evasion techniques for prohibited listings?

Bad actors on online marketplaces constantly evolve their evasion techniques — using coded terms, euphemisms, partial product descriptions, or obfuscated images to avoid detection. XPndAI's AI classifier addresses evasion at multiple layers: (1) Semantic understanding over keyword matching — the classifier understands meaning, not just keywords, so coded terms ("garden plant fertiliser" for controlled substances, "collector's item" for weapons) are evaluated in context of the full listing; (2) Multi-modal cross-validation — a listing with an innocent title but suspicious images, suspicious pricing, and a seller with a history of removed listings gets elevated risk regardless of the text alone; (3) Continuous adversarial retraining — as new evasion patterns are identified by human reviewers, they are fed back into classifier training (on a scheduled basis agreed with the operator); (4) Seller history weighting — a seller whose prior listings were removed for specific violations gets elevated risk scoring on new listings even if the new listing appears innocuous on its own; (5) Cross-listing network analysis — an operation running multiple accounts with similar products across different categories is detected by network pattern analysis, not just per-listing classification; (6) Custom prohibited category training — operators with specific prohibited goods categories (counterfeit luxury goods, jurisdiction-specific prohibited items) can provide training data to tune the classifier for their specific risk profile. Evasion is a continuous arms race; XPndAI builds the infrastructure for that race, not a static system.

Marketplace Trust & Safety AI — Start the Discussion

Tell us your platform type, monthly listing volume, regulatory obligation (EU DSA, UK OSA, or own policy), and current trust & safety gap. We scope and demo within 5 business days.

XPndAI · Marketplace Trust & Safety AI · EU DSA / UK OSA Compliance · Illegal Listing Detection · Seller KYB · Appeals Workflow · Source Code Ownership · From $50,000 · +91-9625368140