Nautilus integrates with Shippo for discounted shipping rates and label creation. Useful for warehouses that don't have direct carrier accounts negotiated, or that want USPS commercial pricing without separately enrolling.
Inventory data, where you need it.
Three things the Shippo integration does well, that you'd otherwise be doing by hand.
Pre-negotiated discounts
Shippo's carrier discounts apply automatically. USPS Commercial Plus, UPS Daily Pickup, and DHL Express rates are all discounted off standard. Most customers save 10-30% on small package shipping out of the gate.
50+ carriers
Compare rates across 50+ carriers (regional carriers, international postal services, freight providers). Nautilus surfaces the cheapest option that meets the order's service level, or you can pin a preferred carrier.
Return labels
Generate return shipping labels for RMA workflows. The customer receives an emailed return label; when the package arrives, the warehouse scans the return label and Nautilus routes the item back into stock or quarantine based on the return reason.
Bidirectional sync. No manual entry.
Data moves between Nautilus and Shippo in both directions, near-real-time.
- Pick completions
- Package dimensions
- Shipping addresses
- Service level requests
- Rate quotes
- Label PDFs
- Tracking numbers
- Carrier delivery events
Four steps to live.
Under 10 minutes for most teams. The full health check takes longer but doesn't block sync.
Connect
Authenticate with one click. Nautilus uses OAuth — no API keys to copy, no credentials to store.
Map
Match your products, locations, and accounts. Nautilus auto-maps by SKU where possible.
Sync
Enable bidirectional sync. Changes in either system reflect in the other within 30 seconds.
Verify
Run the sync health check. Nautilus flags any mismatches before they become problems.
What the integration does, in numbers.
Shippo questions, answered.
Should I use Shippo or ShipStation? They look similar.
Shippo is more API-first; ShipStation is more UI-first. If your team prefers a heavy GUI for shipping work (batch printing, rule-based carrier selection visible in a dashboard), use ShipStation. If your team is comfortable letting Nautilus drive carrier selection through Shippo's API, use Shippo. Pricing also differs; Shippo's per-label pricing scales more predictably for very high volumes.
Can I use my own negotiated carrier accounts through Shippo?
Yes. If you have your own UPS or FedEx account with negotiated rates, add your account credentials to Shippo and the integration uses your rates instead of Shippo's discounted rates. Useful when you've negotiated better rates than Shippo's pool offers.
How does Shippo handle dimensional weight?
Nautilus pushes the package dimensions and actual weight; Shippo calculates DIM weight per carrier rules and quotes the higher of actual vs. dimensional. The quotes are real-time, so you see the actual rate that will be charged, not an estimate.
What's the rate-quote latency?
Typically 200 to 600ms per quote. For high-throughput operations doing batch picking, quotes happen in parallel and don't bottleneck pick-to-pack flow. We've never seen a customer's pack throughput limited by rate quote speed.
See Nautilus + Shippo running on real data.
30-minute walkthrough with a Nautilus engineer. We'll connect a sandbox of your Shippo account and show the sync live.