Our mission
Sparknautic exists to level the playing field for independent e-commerce sellers. We believe every seller — whether you're running a one-person vintage shop or managing thousands of SKUs across four marketplaces — deserves access to the same inventory management tools that enterprise retailers take for granted.
Our mission is simple: make multi-channel selling effortless. No spreadsheets. No overselling. No switching between four different seller dashboards. Just one place to manage your products, orders, and inventory across eBay, Etsy, Amazon, and Shopify.
The problem we solve
Multi-channel sellers face a painful operational reality. Every new sales channel doubles the complexity: separate logins, separate inventory counts, separate order queues. Sell a product on eBay but forget to update Etsy? That's an oversell, a cancellation, a negative review, and a hit to your seller rating.
Most inventory management tools charge $100-300/month and are built for large operations with dedicated ops teams. Independent sellers — the ones who need help the most — are stuck with spreadsheets, browser tabs, and anxiety.
Sparknautic fixes this with:
- Real-time inventory sync — Stock updates across all channels every 15 minutes, automatically
- Unified order management — Every order from every channel in one view
- One-click multi-channel listing — List products on eBay, Etsy, Amazon, and Shopify from a single catalog
- Affordable pricing — Starting at $0/month, scaling to $79/month for serious sellers
Our values
Sellers first
Every feature we build starts with a seller's real workflow. We don't add complexity for its own sake. If it doesn't save time or prevent mistakes, it doesn't ship.
Reliability over everything
Inventory sync is mission-critical. A missed sync means overselling, cancellations, and damaged seller ratings. We engineer for 99.9% uptime and automatic recovery from API failures.
Transparent pricing
No hidden fees, no per-transaction charges, no contracts. You know exactly what you're paying, and you can upgrade, downgrade, or cancel anytime. The free tier is genuinely free — not a bait-and-switch.
Built for growth
Start with one channel and 25 products. Scale to four channels and unlimited products without changing your workflow. Sparknautic grows with your business.
Who we're built for
Sparknautic is designed for:
- Side-hustle sellers expanding from one marketplace to two or three
- Small business owners managing 100-5,000 SKUs across multiple channels
- Vintage and handmade sellers who sell on Etsy and want to expand to eBay or Amazon
- Amazon FBA sellers diversifying to avoid single-platform dependency
- Dropshippers and resellers who need real-time stock visibility across channels
The technology
Sparknautic is a modern web application built for speed and reliability. We use direct API integrations with each marketplace — no middleware, no third-party connectors that add latency or points of failure.
- eBay — Sell Inventory API (inventory items, offers, groups) + Browse API
- Etsy — Open API v3 with PKCE OAuth
- Amazon — Selling Partner API (SP-API) with Login with Amazon
- Shopify — Admin REST API with OAuth
Background jobs run continuously to sync inventory, import orders, refresh tokens, and monitor stock levels — so you don't have to.
Made in the USA
Sparknautic is built and operated by Apex and Studio, LLC in the United States. Our infrastructure runs on US-based servers with enterprise-grade security.
Get in touch
Questions? Feedback? Partnership inquiries? Reach out anytime:
- Email: [email protected]