AI ecommerce product listing studio for product copy, marketplace field mapping, image generation, and selling-video workflows.

Inventory ops domain layer: items, orders, sales, incidents, listings — business rules from production ERP

Cookie-based marketplace auth: JWT expiry, session refresh, multi-account coordination

Credential-safe Kleinanzeigen browser automation for existing Firefox and Chrome profiles

Retool ERP modules: SQL/JS deploy validation, sync comparator, order state machine patterns

Multi-marketplace sync orchestration: scheduler, watchdog, feed pipeline, ASIN deduplication

LLM-assisted catalog enrichment and product standardization for large SKU inventories (production-extracted)

DealBot is an AI-powered negotiation assistant for online marketplaces (starting with Leboncoin).

Google Sheets to PostgreSQL ETL: validation, FK resolution, accent-aware mappings, phased reports

Cloud-to-local bridge: distributed lock, command queue, dispatcher, printer discovery

Production-oriented browser automation system for marketplace chat processing, intent routing, safe reply execution, and PostgreSQL-backed operational state tracking.

Production Amazon catalog scraper: priority queue, idempotent writes, resilient parsing

eBay production integration: OAuth2, Feed API, orders, shipping, CSV feed generation

Production-ready Amazon SP-API client in TypeScript — LWA token caching, per-endpoint rate limiting, 429 retry, and typed Orders/Inventory methods. Full write-up at shubhamkansal.com.

Reverse-engineered Wallapop extractors: orders, chats, listings, multi-account workflows

Warehouse image ops: photo validation, thermal shipping labels, barcodes, carrier PDF download

Monitors Amazon EU liquidation auctions on B-Stock: scrapes lots, downloads manifests, reverse-solves max profitable bid (transport/VAT/fees/RE) and emails alerts. SQLite history.