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Production Platforms
Zygenai
AI-powered agent for eBay sellers. Listing optimization, automated customer messaging, order workflow handling. eBay OAuth onboarding, Stripe subscription billing, multi-seller dashboard. Built on Python and FastAPI.
Zygenai is an AI agent that runs the long-tail of an eBay seller's day: listing optimization, customer messaging, and order workflows. Sellers connect via eBay OAuth, manage subscriptions through Stripe, and oversee a multi-seller dashboard. The agent watches incoming messages, drafts replies in the seller's tone, and queues actions for human approval, with every action auditable.
Built for production use, with system design, delivery, and product behavior shaped end to end.

System design
- eBay OAuth and token refresh per seller, isolated workspace per account
- LLM-driven message classifier and draft-reply generator with brand-tone retrieval
- Stripe subscription billing with Stripe Customer Portal for upgrades and downgrades
- Audit log for every agent action (draft, send, suppress) for trust and rollback
Product surface
- AI listing optimization for SEO and conversion
- Auto-drafted customer message replies in seller tone
- Order workflow automation with human-in-the-loop
- Multi-seller dashboard for agencies
- Stripe-managed subscriptions and billing portal