EasyPost Multi-Carrier Shipping Integration for Ecommerce
Access 100+ shipping carriers through a single EasyPost connection in Nventory. Compare rates, generate labels, verify addresses, and track shipments across every carrier without managing individual carrier accounts or APIs.
One inventory hub for every channel you sell on
Connect EasyPost to your entire sales ecosystem. Every order, every stock update, every product change — synced automatically so you never oversell or miss a beat.
Shopify
Amazon
eBay
WalmartGo live with EasyPost in four steps
Connect, sync, and automate your EasyPost operations in minutes — not weeks.
Connect
Link your EasyPost account with a single API key — no developer needed.
Sync
Inventory, orders, and product data flow bi-directionally in real time.
Route
Smart fulfillment rules send orders to the right warehouse automatically.
Scale
Add new sales channels in minutes without disrupting existing workflows.
Everything that syncs with EasyPost
Coverage designed around how teams actually operate — not a generic feature list.
Multi-carrier rate shopping
Compare real-time rates from USPS, UPS, FedEx, DHL, and dozens of regional carriers in a single request. Nventory applies your shipping rules to select the best option automatically.
Label generation
Generate shipping labels for any EasyPost-supported carrier directly from your Nventory order queue without switching between carrier portals.
Address verification
Validate customer addresses before label creation to reduce undeliverable packages, address correction surcharges, and customer complaints.
Shipment tracking
Receive tracking events from every carrier through EasyPost and push updates to Shopify, Amazon, WooCommerce, and all connected channels automatically.
Insurance and claims
Add shipment insurance through EasyPost at competitive rates and manage claims without dealing with individual carrier insurance processes.
Customs and international docs
Auto-generate customs forms and commercial invoices for international shipments across any EasyPost-supported carrier using your product data.
Common EasyPost operational scenarios
Multi-carrier shippers looking for the best rate per package
You ship with multiple carriers and want to compare rates in real time instead of guessing which carrier is cheapest for each shipment.
Growing brands consolidating carrier integrations
You are tired of managing separate carrier accounts and APIs. EasyPost gives you one integration that covers your current and future carrier mix.
Operations teams shipping both domestic and international
You need a carrier-agnostic approach to label generation, customs documentation, and tracking that works the same way regardless of destination.
A rollout sequence that avoids sync drift
Connect your EasyPost account
Enter your EasyPost API key in Nventory to enable access to all carriers configured in your EasyPost dashboard.
Configure carrier accounts
Add your negotiated carrier accounts in EasyPost or use EasyPost default accounts. Nventory will pull rates from every active carrier.
Set shipping rules and preferences
Define carrier selection rules based on weight, destination, speed, or cost. Nventory applies these rules automatically during fulfillment.
Test labels and tracking flow
Generate test labels, verify address validation, and confirm tracking events push to all connected sales channels before going live.
Real-time sync across every channel
One sale triggers instant updates everywhere. No batch jobs, no delays, no double-selling.
See your EasyPost performance in real time
Track sync health, inventory levels, and order status from a single screen — no more switching between tools.
What teams should design around early
Carrier account setup in EasyPost
You may need to add your own carrier accounts in EasyPost for negotiated rates. Default EasyPost rates are available but may not reflect your pricing.
Rate accuracy depends on package data
Accurate weights and dimensions are essential for correct rate comparisons. Incomplete package data leads to rate mismatches and billing adjustments.
Regional carrier availability
Not all EasyPost-supported carriers are available in every region. Confirm your preferred carriers are active in your EasyPost account before relying on them.
EasyPost works with your entire stack
30+ native integrations across marketplaces, storefronts, shipping, and accounting — connect in minutes.
Connect EasyPost into the rest of your stack
Shopify + EasyPost
Connect Shopify to EasyPost through Nventory and access 100+ carriers via a single integration. Sync orders, product data, and tracking numbers automatically.
WooCommerce + EasyPost
Connect WooCommerce to EasyPost through Nventory and ship via 100+ carriers with one integration. Sync orders, product data, and tracking automatically.
Amazon + EasyPost
Connect Amazon to EasyPost through Nventory for multi-carrier fulfillment. Sync MFN orders, product data, and tracking across 100+ carriers automatically.
Let's Integrate
Select a platform to discover how Nventory connects EasyPost with your stack.
Questions teams ask before connecting EasyPost
Start using EasyPost with cleaner workflows
Move from disconnected channel setup to a repeatable operating model that keeps inventory, orders, and fulfillment aligned as volume grows.