What is a multi-carrier shipping API?

A multi-carrier shipping API is a single unified endpoint that connects your application to multiple parcel carriers simultaneously. Instead of maintaining separate code for DHL, FedEx, UPS, DPD, and regional postal services, you complete one shipping API integration with ShippyPro to compare live rates from your contracts, create shipping labels, validate addresses, and track orders across all carriers.

How does automated carrier selection work?

Our multi-carrier shipping software evaluates order parameters (cost, destination, dimensions, or SLA) against rules you define, automatically routing each shipment to the optimal carrier. You can also allow warehouse personnel or customers at checkout to select preferred carriers manually.

How long does shipping API integration take?

Most development teams create their first test label using our shipping label API within 48 hours. ShippyPro provides comprehensive OpenAPI documentation, SDKs, and developer support. Complete OMS, WMS, or ERP go live typically takes 2 to 4 weeks.

What is your API uptime and SLA guarantee?

ShippyPro guarantees 99.5% uptime backed by enterprise cloud infrastructure. Our tracking API webhooks feature automated retry logic to ensure delivery updates are never dropped during high volume peak periods.

Does ShippyPro integrate with custom OMS, WMS, and ERP systems?

Yes. Our RESTful shipping API for ecommerce is completely system agnostic and connects seamlessly to custom OMS, WMS, SAP, or ERP infrastructure. We also offer native connectors for platforms like Shopify, WooCommerce, and Magento.

Do we use our own carrier accounts and contracts?

Yes. ShippyPro is a carrier-neutral multi-carrier shipping solution. You connect your existing carrier accounts and negotiated rates directly to the API. We do not mark up shipping rates or force specific carrier usage, giving you full control over your logistics costs.

Is the API connected to the full ShippyPro web platform?

Yes. The API accesses the exact same logistics engine and rule setup powering the ShippyPro web portal, used by over 130,000 merchants. You can run 100% programmatically via the API, utilize our UI portal, or combine both approaches.

Multi-Carrier Shipping API for 200+ Carriers

The platform

The shipping APIs built to save you time and money

Four core capabilities engineered to compare live carrier rates, generate labels, and track shipments.

01 · Instant Label Creation

Generate carrier labels & customs docs instantly

Never write carrier-specific label logic again. Send one order payload and receive compliant labels, tracking codes, and international paperwork formatted for DHL, FedEx, UPS, or DPD.

Outputs native PDF, PNG, and ZPL formats ready for thermal printing
Creates outbound and return shipping paperwork in a single payload

POST /v1/shipments

✓ Label ready

DHL Express

Milan, IT → Paris, FR

JD0146000031

Weight2.4 kg

StatusCreated

02 · Live Rate Comparison

Compare contracted rates to assign the cheapest service

Always ship at the best price. Fetch real time live rates across your connected carrier accounts, then display exact shipping costs or automatically assign the cheapest carrier to each shipment.

Fetch live prices directly from your connected carrier contracts
Detailed Costs API breaks down fuel, peak, and delivery surcharges

POST /v1/rates

GLS

GLS Standard

3-4 business days

€6.90

DHL

DHL Express

1-2 business days

€8.40

UPS

UPS Standard

2-3 business days

€9.10

03 · Multi-Channel Sync

Unify sales channels into one endpoint

Eliminate manual data entry for good. Pull order streams automatically from Shopify, Amazon, WooCommerce, and custom ERPs into a single feed.

Pre-built integrations for 80+ e-commerce storefronts and marketplaces
Two-way status sync updates fulfillment data back to your storefronts

GET /v1/orders

2 new orders

ShopifySHOP-10234 · US

04 · Address Check & Tracking

Prevent delivery failures & push live webhooks

Stop paying for failed deliveries. Verify street addresses before printing labels, then stream normalized tracking events directly back to your app.

Automated address validation API eliminates failed delivery surcharges
Normalized tracking API status updates across all carriers via webhook

POST /webhooks

📦

Your package is out for delivery

TRACK DELIVERY

"event": "track"

"status": "in_transit"

Proven at scale

Engineered to power every shipment

Infrastructure performance metrics trusted by global brands during peak shipping volumes.

99.5%+

Guaranteed API Uptime

Autoscaling multi-carrier shipping software infrastructure with real time status history.

−80%

Integration Overhead

Patrizia Pepe replaced custom carrier software and cut integration costs by 80%.

200+

Carriers Connected

A single shipping API integration connecting 4,000+ logistics services worldwide.

<200ms

Median Latency

Rate comparison and label creation endpoints optimized for high converting checkouts.

Google ★★★★★ 4.9 67 reviews

Capterra ★★★★★ 4.6 897 reviews

G2 ★★★★★ 4.3 531 reviews

How it works

From checkout to label creation without writing custom logic

See exactly what happens between your API call and a shipped order.

Send order data

Initiate a REST call containing origin, destination, and box weight. Our platform normalizes individual carrier API requirements automatically.

Rules pick the carrier

ShippyPro evaluates 200+ carriers (DHL, FedEx, UPS, DPD) against your routing criteria to assign the optimal service level.

Receive labels & webhooks

Get back compliant shipping labels, tracking numbers, and customs paperwork instantly, while tracking webhooks keep your system updated.

API capabilities

Everything you need to ship globally in one API.

13 fully documented REST endpoints built for enterprise logistics platforms.

Marketplace API

Import orders from Shopify, Amazon, and WooCommerce into a single feed.

Shipping Label API

Generate shipping labels, tracking codes, and customs forms across 200+ carriers.

Get Rates API

Compare live carrier prices from your connected accounts to assign the cheapest service.

Address Validation API

Verify street addresses before printing labels to prevent failed delivery fees.

Tracking API

Receive real time tracking webhooks directly in your app, storefront, or CRM.

New

Pickup API

Schedule carrier pickups automatically from any fulfillment center.

New

Drop-off API

Display nearby carrier access points and drop off locations during checkout.

New

Paperless API

Transmit digital customs declarations for cross border international shipments.

POD API

Retrieve digital proof of delivery signatures, photos, and timestamps.

Return API

Generate return shipments and printable return labels on demand.

Return Comb. API

Generate outbound shipping labels and return labels in one API call.

Detailed Costs API

Analyze shipping costs broken down by base rates, fuel, and extra surcharges.

New

PutShippedOrder API

Import external orders into ShippyPro to access unified tracking analytics.

Explore Full REST API Documentation →

Who it's for

One API that scales with you

Built to support every business architecture, from fast moving brand stores to high volume logistics software.

DTC, B2B & E-commerce Brands

Expand cross border without adding tech debt

Launch regional carriers like DHL, DPD, or GLS in days to reduce international shipping costs.

New carrier integrations live in under 5 days

Marketplaces & Aggregators

Offer dynamic rate selection at checkout

Display real time delivery estimates and transparent rate options to increase checkout conversion.

Get Rates API returns live pricing in a single call

3PLs & Fulfillment Providers

Unify client carrier accounts into one endpoint

Manage hundreds of client carrier contracts automatically by warehouse location or custom SLA.

Carrier neutral architecture: connect your own contracts

OMS, WMS & ERP Platforms

Embed shipping natively into your software

Eliminate dozens of individual carrier maintenance tasks with a single, highly reliable endpoint.

Pre-built connectors for Shopify, Magento, and SAP

FAQ

Multi-carrier shipping API FAQs

: A multi-carrier shipping API is a single unified endpoint that connects your application to multiple parcel carriers simultaneously. Instead of maintaining separate code for DHL, FedEx, UPS, DPD, and regional postal services, you complete one shipping API integration with ShippyPro to compare live rates from your contracts, create shipping labels, validate addresses, and track orders across all carriers.
: Our multi-carrier shipping software evaluates order parameters (cost, destination, dimensions, or SLA) against rules you define, automatically routing each shipment to the optimal carrier. You can also allow warehouse personnel or customers at checkout to select preferred carriers manually.
: Most development teams create their first test label using our shipping label API within 48 hours. ShippyPro provides comprehensive OpenAPI documentation, SDKs, and developer support. Complete OMS, WMS, or ERP go live typically takes 2 to 4 weeks.
: ShippyPro guarantees 99.5% uptime backed by enterprise cloud infrastructure. Our tracking API webhooks feature automated retry logic to ensure delivery updates are never dropped during high volume peak periods.
: Yes. Our RESTful shipping API for ecommerce is completely system agnostic and connects seamlessly to custom OMS, WMS, SAP, or ERP infrastructure. We also offer native connectors for platforms like Shopify, WooCommerce, and Magento.
: Yes. ShippyPro is a carrier-neutral multi-carrier shipping solution. You connect your existing carrier accounts and negotiated rates directly to the API. We do not mark up shipping rates or force specific carrier usage, giving you full control over your logistics costs.
: Yes. The API accesses the exact same logistics engine and rule setup powering the ShippyPro web portal, used by over 130,000 merchants. You can run 100% programmatically via the API, utilize our UI portal, or combine both approaches.

Scale global fulfillment with a multi-carrier shipping API

The shipping APIs built to save you time and money

Generate carrier labels & customs docs instantly

Compare contracted rates to assign the cheapest service

Unify sales channels into one endpoint

Prevent delivery failures & push live webhooks

Engineered to power every shipment

From checkout to label creation without writing custom logic

Everything you need to ship globally in one API.

One API that scales with you

Connect your existing Carrier contracts
& e-commerce stack

Multi-carrier shipping API FAQs

Explore more from ShippyPro

Ready to reduce integration costs
and scale global fulfillment?

Scale global fulfillment with a multi-carrier shipping API

The shipping APIs built to save you time and money

Generate carrier labels & customs docs instantly

Compare contracted rates to assign the cheapest service

Unify sales channels into one endpoint

Prevent delivery failures & push live webhooks

Engineered to power every shipment

From checkout to label creation without writing custom logic

Everything you need to ship globally in one API.

One API that scales with you

Connect your existing Carrier contracts& e-commerce stack

Multi-carrier shipping API FAQs

Explore more from ShippyPro

Ready to reduce integration costsand scale global fulfillment?

Connect your existing Carrier contracts
& e-commerce stack

Ready to reduce integration costs
and scale global fulfillment?