--- title: "Compare Shipping Rates via API Instantly" url: "https://www.shipstation.com/en-gb/fulfillment/api/shipping-rate-comparison/" type: "page" modified: "2026-10-02T15:03:57-05:00" --- Real-time rate comparison across your carrier ecosystem ======================================================= Provide accurate, real-time shipping options directly in your checkout. ShipStation API compares carrier rates and delivery timing across multiple carriers, with built-in rate shopping logic to highlight the cheapest, fastest, or best-fit services—so you can confidently select the right option for every order. [ Get the API Now ](/get-api) [ Speak to an Expert ](/en-gb/contact-us) ![En Gb.](https://www.shipstation.com/wp-content/uploads/2026/04/en-gb-hero-12-2-1024x784.png) driving fulfilment for the uk's small and medium size businesses - ![THE GREAT BRITISH CHEESE COMPANY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/GBCC-scaled.png) - ![Shropshire Petals Logo](https://www.shipstation.com/wp-content/uploads/2026/04/Shropshire-Petals-Logo.avif) - ![Minimum World Logo](https://www.shipstation.com/wp-content/uploads/2026/04/Minimum-World-Logo.png) - ![THE CHEEKY PANDA LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Cheeky-Panda-Logo.png) - ![BOOKISHLY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Bookishly-Logo.avif) - ![POSH TOTTY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Posh-Totty-Logo.png) - ![BOTHAMS OF WHITBY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Bothams-png.png) - ![STICKERS 4 WALLS LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/S4W-LOGO.png) - ![BULLY BILLOWS LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/BullyBillows-Logo.webp) - ![THE GREAT BRITISH CHEESE COMPANY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/GBCC-scaled.png) - ![Shropshire Petals Logo](https://www.shipstation.com/wp-content/uploads/2026/04/Shropshire-Petals-Logo.avif) - ![Minimum World Logo](https://www.shipstation.com/wp-content/uploads/2026/04/Minimum-World-Logo.png) - ![THE CHEEKY PANDA LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Cheeky-Panda-Logo.png) - ![BOOKISHLY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Bookishly-Logo.avif) - ![POSH TOTTY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Posh-Totty-Logo.png) - ![BOTHAMS OF WHITBY LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/Bothams-png.png) - ![STICKERS 4 WALLS LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/S4W-LOGO.png) - ![BULLY BILLOWS LOGO](https://www.shipstation.com/wp-content/uploads/2026/04/BullyBillows-Logo.webp) See ShipStation API rate shopping in action ------------------------------------------- Explore our interactive tour to see how ShipStation API’s rate shopping tools can improve efficiency, reduce costs, and boost your bottom line. Testimonials Hear From our Customers ----------------------- [![wellspring gardens shipstation inventory sync](https://www.shipstation.com/wp-content/uploads/2026/10/wellspring-gardens-shipstation-inventory-sync-768x432.webp)](https://www.shipstation.com/en-gb/stories/wellspring-gardens/) ### [Growing Pains, Solved: How Wellspring Gardens Keeps 865 SKUs in Sync Across 6 Marketplaces](https://www.shipstation.com/en-gb/stories/wellspring-gardens/) "ShipStation's inventory sync is our source of truth for all of our products." [Read Story](https://www.shipstation.com/en-gb/stories/wellspring-gardens/) [![the peach truck shipstation automation rules](https://www.shipstation.com/wp-content/uploads/2026/10/SnapInsta.to_771108590_18616644127042852_8656524296294909251_n-768x511.webp)](https://www.shipstation.com/en-gb/stories/the-peach-truck/) ### [How The Peach Truck Ships 250,000 Boxes of Peaches a Season with ShipStation Automation Rules](https://www.shipstation.com/en-gb/stories/the-peach-truck/) "That way we can just print the labels. With ShipStation's automation rules, we don't even have to think about it." [Read Story](https://www.shipstation.com/en-gb/stories/the-peach-truck/) [![duraweather poly ltl in shipstation](https://www.shipstation.com/wp-content/uploads/2026/09/SnapInsta.to_763692413_1517105007110198_6767432365517191947_n-768x512.webp)](https://www.shipstation.com/en-gb/stories/duraweather-poly/) ### [How LTL Shipping in ShipStation Cut DuraWeather Poly’s Shipping Time by 40%](https://www.shipstation.com/en-gb/stories/duraweather-poly/) "Having LTL in ShipStation has reduced confusion, and it helps us ship orders quicker, because we have a lot of orders." [Read Story](https://www.shipstation.com/en-gb/stories/duraweather-poly/) ### Identify cheapest and fastest options automatically Make shipping decisions quickly without manually reviewing every quote. Use returned cost and delivery date fields to sort rates, highlight low-cost services, prioritise fast delivery options, and power smart defaults within your checkout or fulfilment tools. This speeds up operations while keeping costs under control. ![Identify Cheapest And Fastest Options 260220 1233.](https://www.shipstation.com/wp-content/uploads/2026/02/identify-cheapest-and-fastest-options-260220-1233.webp) ### Gain full visibility into your shipping costs Move beyond a single line-item rate. When available, responses include detailed breakdowns of carrier charges such as transportation, insurance, confirmation services, and additional fees. This level of transparency supports margin analysis, streamlines reconciliation, reduces billing surprises, and gives customer service teams the clarity they need to confidently explain shipping charges. ![See An Itemized Shipping Rate Breakdown 260220 1233.](https://www.shipstation.com/wp-content/uploads/2026/02/see-an-itemized-shipping-rate-breakdown-260220-1233.webp) ### Scale shipping rates without slowing checkout Show customers accurate shipping costs at checkout and keep those rate details on hand for reporting, cost comparisons, and fulfilment decisions later. Combine speed, accuracy, and flexibility so your shipping logic scales smoothly as order volume and business complexity grow. ![Checkout delivery options in ShipStation.](https://www.shipstation.com/wp-content/uploads/2026/02/scale-shipping-rates-without-slowing-checkout-260220-1233.webp) Related Content Helpful Shipping Resources -------------------------- Browse additional articles, guides, and insights related to shipping and fulfilment. These resources provide practical advice and best practices to support your day-to-day operations. ![Greenblue Globe02.](https://www.shipstation.com/wp-content/uploads/2026/04/ShipStation_GreenBlue_RGB_Globe02.svg)##### How to Compare International Shipping Quotes and Calculate Global Carrier Delivery Costs Here’s a practical guide for comparing international shipping quotes and choosing the right carrier. [Read Story](https://www.shipstation.com/blog/how-to-compare-international-shipping-quotes-and-calculate-global-carrier-delivery-costs/) ![Greenblue Lightbulb01.](https://www.shipstation.com/wp-content/uploads/2026/03/ShipStation_GreenBlue_RGB_Lightbulb01.svg)##### Solved: The 5 Biggest Shipping Challenges Facing British Ecommerce Businesses Today Running a successful ecommerce business in Britain today is a constant balancing act. See how ShipStation solves the biggest challenges. [Read Story](https://www.shipstation.com/blog/solved-the-5-biggest-shipping-challenges-facing-british-ecommerce-businesses-today/) Ready to get started? --------------------- ShipStation API removes the complexities of shipping. Scale your business with our industry-leading API, comprehensive documentation, and vast carrier network. [Get the API Now](/get-api) [Talk to an Expert](/contact-us) ### Shipping rates FAQs ##### What is an API with shipping rate capabilities? How is it different from a label feature? A shipping rate API focuses on returning carrier quotes and delivery timing so you can compare prices and select the best service before purchasing a label. A label feature purchases the actual shipment label after you choose a rate. ##### Can I use ShipStation API to power my checkout shipping options? Yes. Many teams use ShipStation API to plug shipping rate quotes directly into their ecommerce checkout. By sending cart or order details, you can retrieve real-time carrier rates and show customers options that fit their budget and delivery expectations. ##### Do I need to connect each carrier separately to get rates? Only one integration with ShipStation API is required. Once your carriers are connected and configured inside ShipStation API, you can request rate quotes from one or multiple carriers in a single call — simplifying your code and avoiding multiple integrations. ##### Can the shipping rates feature help with duties, taxes, and fees? Yes. When you include accurate shipment and customs details, ShipStation API can return rate responses that reflect duties, taxes, and other fees where supported — helping you present more accurate landed costs upfront. ##### What happens after I choose a rate from the response? Once you select the rate that best fits your shipment, you use its details to purchase a shipping label. Because the shipment ID was created during the rate request, you can transition seamlessly from rate selection to label creation in one consistent workflow. ##### How fast does ShipStation API return shipping rate quotes? ShipStation API is built for real-time workflows, returning carrier rate quotes quickly enough to power live checkout experiences and internal fulfillment tools. Performance depends on carrier response times and shipment complexity, but most teams use it successfully in customer-facing flows. ##### Can I compare rates across multiple carriers in a single request? Yes. With one API call, you can request shipping rates from multiple connected carriers at once. This lets you compare prices and delivery timing without maintaining separate integrations or handling different carrier formats.