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- Web App Development Product-grade web apps
- Mobile App Development iOS and Android, one codebase
- Desktop Development Windows, macOS, and Linux
- API & Backend Systems Integrations and production APIs
- Shipping Platforms Carrier APIs and multi-carrier platforms
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- End-to-End Encryption Your keys, Signal-class sessions
- Consultation Scope, architecture, a plan
- Asset Design 2D and 3D under one roof
EasyPost Integration Services
We integrate the EasyPost API into your storefront, WMS, OMS or ERP such as SYSPRO, Epicor Prophet 21 or NetSuite, and build complete multi-carrier shipping platforms on top of it. Rate shopping, label purchase, tracking webhooks, address verification, batches and scan forms, engineered for production volume.
Get Started- Rate Shopping
- Label Purchase
- Tracking Webhooks
- Address Verification
- Batches + Scan Forms
- Carrier Accounts
What We Build
Multi-Carrier Rate Shopping
Create a shipment once and receive rates from every carrier account connected to EasyPost, then select the rate with your own rules for delivery speed, carrier preference or service level.
Label Purchase
Buy the selected rate and receive the label in PDF, PNG or ZPL through the same request format for every carrier, with customs information attached for international shipments.
Trackers and Webhooks
Create trackers for shipments and receive tracking updates as webhook events, with statuses normalised across carriers and verified before they touch your order data.
Address Verification
Verify and correct addresses before rating and label purchase, and flag residential addresses, which reduces failed deliveries and carrier correction charges.
Batches and Scan Forms
Purchase labels in batches for high-volume fulfilment and generate scan forms, the manifests some carriers require at pickup.
Carrier Accounts
Connect your own carrier accounts so rates reflect your negotiated account rates, and manage accounts per warehouse, brand or client in multi-tenant platforms.
How We Build Your Integration
Discovery
We map your carriers, warehouses and order flow, and decide which carrier accounts to connect and where shipping data needs to land.
Architecture
We design carrier selection rules, webhook processing with idempotency, API key separation between test and production, and the data model for shipments and tracking.
Development
We build against the EasyPost API and the connectors into your storefront, WMS, OMS or ERP.
Testing
We test with EasyPost test keys across carriers, international shipments, batches and webhook delivery, including retries and out-of-order events.
Launch and Support
We switch to production keys with monitoring on label failures, webhook lag and API errors, and maintain the integration as EasyPost evolves.
Supported Platforms
We integrate with the platforms your business already uses, ensuring a smooth workflow from checkout to delivery.
Use Cases
Multi-Carrier Checkout
Show rates from several carriers at checkout on Shopify, WooCommerce or a custom store without integrating each carrier API separately.
Shipping SaaS and Platforms
Use EasyPost as the carrier connectivity layer for your own shipping product, with per-customer carrier accounts, rate rules and branded tracking.
ERP and Warehouse Fulfilment
Create labels from sales orders in SYSPRO, Epicor Prophet 21 or NetSuite, batch them for the warehouse, and write tracking and shipping charges back to the ERP.
3PL Operations
Route each shipment through the carrier accounts belonging to that client, batch labels by wave, and give every client tracking for their own orders.
Why Choose ZyroByte
One Integration, Many Carriers
Add carriers by connecting accounts in EasyPost instead of building a new carrier integration each time.
Connected to Your Systems
EasyPost wired into your ERP, WMS, OMS and storefront so shipping data flows without re-keying.
Webhooks Done Properly
Signature checks, idempotent processing and reconciliation jobs so no tracking update is lost or applied twice.
Your Selection Rules
Carrier and service selection driven by your rules for speed, reliability and account rates, not a fixed default.
Ongoing Maintenance
We keep the integration current with EasyPost API and client library updates.
Secure Keys
Test and production API keys separated, stored encrypted and kept out of client code.
EasyPost Multi-Carrier Integration
EasyPost gives one API across many carriers. We integrate it with your order flow so a shipment is rated across your connected carrier accounts, the rate is chosen by your rules, the label is purchased and printed, and tracking returns through webhooks, all without separate code for each carrier.
Building a Shipping Platform on EasyPost
EasyPost works well as the carrier layer of a complete shipping platform. We build the rest: order import from storefronts and ERPs, rules, batching, returns, customer-facing tracking and reporting, with direct carrier APIs added where you need features EasyPost does not expose.
EasyPost vs Direct Carrier APIs
EasyPost is the faster route to multi-carrier coverage with normalised data. Direct carrier APIs give deeper access to carrier-specific features such as freight or specialised customs options. We help you choose, and we often build a hybrid: EasyPost for breadth, direct APIs where depth matters.