{"id":69181,"date":"2026-02-20T14:22:44","date_gmt":"2026-02-20T20:22:44","guid":{"rendered":"https:\/\/www.shipstation.com\/?page_id=69181"},"modified":"2026-04-27T16:53:19","modified_gmt":"2026-04-27T21:53:19","slug":"address-validation","status":"publish","type":"page","link":"https:\/\/www.shipstation.com\/en-au\/fulfillment\/api\/address-validation\/","title":{"rendered":"Streamline Shipping with Address Verificati&#8230;"},"content":{"rendered":"\n\n\n<section class=\"wp-block-shipstation-hero block not-prose padding-top--sm padding-bottom--lg\">\n    <div class=\"\">\n        <div class=\"container\">\n            <div class=\"hero items-start\">\n                <div class=\"hero-content \">\n                                                                    <h1>Deliver accurately with ShipStation API\u2019s shipping address verification<\/h1>\n                                                    <div class=\"lead\"><p>Verify shipping addresses in real time before labels are created. Use ShipStation API to validate shipping addresses in real time, reduce failed deliveries, and protect margins. Fewer returns. More confident fulfillment. Smoother shipping.<\/p><\/div>\n                                                                                    <div class=\"btn-group\">\n                                                                                    <a href=\"https:\/\/www.shipengine.com\/signup\/\" class=\"btn btn--primary\" target=\"_blank\">\n                                    Start Shipping Now                                <\/a>\n                                                                            \n                                                                                    <a href=\"https:\/\/www.shipengine.com\/contact\/\" class=\"btn outline btn--secondary\" target=\"_blank\">\n                                    Talk to an Expert                                <\/a>\n                                                                        <\/div>\n                                            <\/div>\n                            <div class=\"hero-media \">\n                                            <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/02\/deliver-accurately-with-shipstation-apis-shipping-address-verification-260220-1417.webp\" alt=\"address verification\" width=\"900\" height=\"698\" loading=\"eager\" \/>\n                                    <\/div>\n                                    <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n\n\n\n<section class=\"wp-block-shipstation-logo-marquee block not-prose\">\n    <div class=\"bg-white background--full content-theme--light \">\n        <div>\n            <div class=\"container\">\n                    <div class=\"content content-align-center items-center\">\n                                            <p class=\"eyebrow\">    Connected to the platforms that power your business<\/p>\n                                        \n                                        \n                                        \n                                        \n                                    <\/div>\n                    <div class=\"logo-marquee\">\n                <div class=\"fade-edges \">\n                    <div class=\"slider\">\n                        <ul class=\"animate-infinite-scroll\">\n                                                                                                <li>\n                                        <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Paypal-icon-card.svg\" \n                                             alt=\"Paypal logo\" \n                                             width=\"94\" \n                                             height=\"94\" \n                                             loading=\"lazy\" \/>\n                                    <\/li>\n                                                                                                                                <li>\n                                        <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/DHL-icon-card.svg\" \n                                             alt=\"DHL logo\" \n                                             width=\"94\" \n                                             height=\"94\" \n                                             loading=\"lazy\" \/>\n                                    <\/li>\n                                                                                                                                <li>\n                                        <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/bigcommerce-icon-card.svg\" \n                                             alt=\"Bigcommerce logo\" \n                                             width=\"94\" \n                                             height=\"94\" \n                                             loading=\"lazy\" \/>\n                                    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src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/USPS-icon-card.svg\" \n                                             alt=\"USPS logo\" \n                                             width=\"94\" \n                                             height=\"94\" \n                                             loading=\"lazy\" \/>\n                                    <\/li>\n                                                                                                                                <li>\n                                        <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Salesforce-icon-card.svg\" \n                                             alt=\"Salesforce logo\" \n                                             width=\"94\" \n                                             height=\"94\" \n                                             loading=\"lazy\" \/>\n                                    <\/li>\n               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src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Tiktok-icon-card.svg\" \n                                             alt=\"TikTok logo\" \n                                             width=\"94\" \n                                             height=\"94\" \n                                             loading=\"lazy\" \/>\n                                    <\/li>\n                                                                                    <\/ul>\n                        \n                                                    <ul aria-hidden=\"true\" class=\"animate-infinite-scroll\">\n                                                                                                            <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Paypal-icon-card.svg\" \n                                                 alt=\"Paypal logo\" \n                                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src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/ETSY-icon-card.svg\" \n                                                 alt=\"Etsy logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                                                                <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Amazon-icon-card.svg\" \n                                                 alt=\"Amazon logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n           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                                          alt=\"WIX logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                                                                <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Shopify-icon-card.svg\" \n                                                 alt=\"Shopify Logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                            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width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                                                                <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Salesforce-icon-card.svg\" \n                                                 alt=\"Salesforce logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                                                                <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/UPS-icon-card.svg\" \n                                                 alt=\"UPS logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                                                                <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Intuit-icon-card.svg\" \n                                                 alt=\"Intuit logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                                                                <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Woo-commerce-icon-card.svg\" \n                                                 alt=\"Woo Commerce logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                                                                <li>\n                                            <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/04\/Tiktok-icon-card.svg\" \n                                                 alt=\"TikTok logo\" \n                                                 width=\"94\" \n                                                 height=\"94\" \n                                                 loading=\"lazy\" \/>\n                                        <\/li>\n                                                                                                <\/ul>\n                                            <\/div>\n                <\/div>\n            <\/div> <!-- Close logo-marquee -->\n            <\/div> <!-- Close container -->\n        <\/div>\n    <\/div>\n<\/section>\n\n\n<style>\n.wp-block-shipstation-logo-marquee .container .logo-marquee .fade-edges .slider>ul>li img {<br \/>\n    min-height: 120px;<br \/>\n}<br \/>\n<\/style>\n\n\n<section class=\"wp-block-shipstation-cards-v2 block not-prose\" id=\"block-cards-6a04b36ee9f17\">\n            <div class=\"bg-grey-lightest background--full content-theme--light  \">\n        <div class=\"container\">\n                        <div class=\"content content-align-center items-center\">\n                                \n                                    <h2>Cut errors and build customer trust<\/h2>\n                                \n                                    <div class=\"lead\"><p>ShipStation API\u2019s automated address verification stops delivery problems before they start. By validating and standardizing addresses wherever they\u2019re collected\u2014from checkout to order creation\u2014you reduce failed shipments, protect margins, and deliver more reliable experiences that keep customers coming back.<\/p><\/div>\n                                \n                                \n                            <\/div>\n                        \n                                                <!-- Grid Mode -->\n                    <div class=\"cards icon-top columns-3 layout-grid\">\n                                                                                <div class=\"card card-icon card-solid card--centered card--text-centered bg-white\">\n                                \n        <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2025\/12\/IconHome-BrandShipstation-2-colorTrue.svg\" alt=\"\" class=\"icon\" loading=\"eager\" \/>\n    \n\n\n\n\n\n<div class=\"card-content h-full\">\n        <div class=\"card-text\">\n                    <!-- Standard heading\/eyebrow for all other card types -->\n            \n                                                <h3 class=\"h5\">Protect your delivery experience<\/h3>\n                                            \n                    <div class=\"body\"><p>Verify addresses before they become problems for you. Address verification tools catch missing apartment numbers, incorrect zip codes, and invalid formats so packages arrive the first time.<\/p><\/div>\n            <\/div>\n\n    <\/div>\n                            <\/div>\n                                                                                                            <div class=\"card card-icon card-solid card--centered card--text-centered bg-white\">\n                                \n        <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2025\/12\/IconPlane-BrandShipstation-2-colorTrue.svg\" alt=\"\" class=\"icon\" loading=\"eager\" \/>\n    \n\n\n\n\n\n<div class=\"card-content h-full\">\n        <div class=\"card-text\">\n                    <!-- Standard heading\/eyebrow for all other card types -->\n            \n                                                <h3 class=\"h5\">Cut costs from failed deliveries<\/h3>\n                                            \n                    <div class=\"body\"><p>Avoid address correction fees, return shipments, and reshipping costs. By checking address validity in advance, your team can prevent label-generation errors at the source and keep more of your hard-earned revenue.<\/p><\/div>\n            <\/div>\n\n    <\/div>\n                            <\/div>\n                                                                                                            <div class=\"card card-icon card-solid card--centered card--text-centered bg-white\">\n                                \n        <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2025\/12\/IconCustomerService04-BrandShipstation-2-colorTrue.svg\" alt=\"\" class=\"icon\" loading=\"eager\" \/>\n    \n\n\n\n\n\n<div class=\"card-content h-full\">\n        <div class=\"card-text\">\n                    <!-- Standard heading\/eyebrow for all other card types -->\n            \n                                                <h3 class=\"h5\">Reduce pressure on your service and operations teams<\/h3>\n                                            \n                    <div class=\"body\"><p>Address issues create support tickets, manual fixes, and frustrated customers. Automate address verification with ShipStation API. Your teams spend less time chasing bad data and more time growing the business.<\/p><\/div>\n            <\/div>\n\n    <\/div>\n                            <\/div>\n                                                                        <\/div>\n                            \n                    <\/div>\n    <\/div>\n<\/section>\n\n\n\n<section class=\"block block-zig-zag wp-block-shipstation-zig-zag block not-prose\">\n    <div class=\"bg-grey-lightest background--full content-theme--light content--lg \">\n        <div class=\"zig-zag-block\">\n            <div class=\"container\">\n                    <div class=\"content content-align-center items-center content-width-md\">\n                                        \n                                            <h2>Powerful validation capabilities that keep every shipment on track<\/h2>\n                                        \n                                            <div class=\"lead\">ShipStation API uses machine learning and built-in address verification to recognize, clean, and confirm shipping addresses across the globe. Build reliable delivery experiences across every sales channel and fulfillment workflow.<\/div>\n                                        \n                                        \n                                    <\/div>\n                <div class=\"columns flex-col-reverse items-center zig-zag-row\" data-row=\"1\">\n            \n            <!-- Text Column -->\n            <div class=\"column-content w-full md:col-span-6 md:order-1 content-align-left mobile-align-left\">\n                                \n                                    <h3>Confirm domestic and international addresses at scale<\/h3>\n                                \n                                    <div class=\"lead max-w-[54rem]\">\n                        <p>Validate domestic and international addresses at scale with ShipStation API\u2019s address verification. Instantly confirm, normalize, and standardize address data across 160+ countries using trusted postal sources\u2014flagging incomplete, ambiguous, or undeliverable entries in real time before you ship. By catching issues upstream, you reduce downstream exceptions, prevent costly reshipments, and keep fulfillment moving without added operational overhead. Fewer errors in, fewer failed deliveries out.<\/p>                    <\/div>\n                                \n                                \n                            <\/div>\n\n            <!-- Media Column -->\n            <div class=\"column-media w-full md:col-span-6 md:order-2\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/02\/confirm-domestic-and-international-addresses-at-scale-260220-1417.webp\" alt=\"\" class=\"rounded-xl\" \/>\n                            <\/div>\n\n        <\/div>\n            <div class=\"columns flex-col-reverse items-center zig-zag-row\" data-row=\"2\">\n            \n            <!-- Text Column -->\n            <div class=\"column-content w-full md:col-span-6 md:order-2 content-align-left mobile-align-left\">\n                                \n                                    <h3>Get clear, actionable feedback that keeps shipments moving<\/h3>\n                                \n                                    <div class=\"lead max-w-[54rem]\">\n                        <p>Leverage clear, actionable feedback that shows what changed, why it changed, and how confident the result is. Simple warnings, errors, and info flags indicate whether an address is verified, partially verified, or needs review. Use these signals to trigger customer prompts, log updates for compliance and auditing, or power smart business rules that keep shipments accurate, consistent, and moving at scale.<\/p>                    <\/div>\n                                \n                                \n                            <\/div>\n\n            <!-- Media Column -->\n            <div class=\"column-media w-full md:col-span-6 md:order-1\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/02\/get-clear-actionable-feedback-that-keeps-shipments-moving-260220-1417.webp\" alt=\"\" class=\"rounded-xl\" \/>\n                            <\/div>\n\n        <\/div>\n            <div class=\"columns flex-col-reverse items-center zig-zag-row\" data-row=\"3\">\n            \n            <!-- Text Column -->\n            <div class=\"column-content w-full md:col-span-6 md:order-1 content-align-left mobile-align-left\">\n                                \n                                    <h3>Catch address format issues before they turn into label errors<\/h3>\n                                \n                                    <div class=\"lead max-w-[54rem]\">\n                        <p>Automatically flag missing or invalid details like apartment numbers, suite identifiers, or postal codes, while cleaning up spacing, abbreviations, and capitalization in real time. This standardization improves carrier acceptance, reduces failed label generation, and ensures consistent address formatting across every channel\u2014cutting manual correction work and accelerating fulfillment throughput.<\/p>                    <\/div>\n                                \n                                \n                            <\/div>\n\n            <!-- Media Column -->\n            <div class=\"column-media w-full md:col-span-6 md:order-2\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/02\/catch-address-format-issues-before-they-turn-into-label-errors-260220-1417.webp\" alt=\"\" class=\"rounded-xl\" \/>\n                            <\/div>\n\n        <\/div>\n            <div class=\"columns flex-col-reverse items-center zig-zag-row\" data-row=\"4\">\n            \n            <!-- Text Column -->\n            <div class=\"column-content w-full md:col-span-6 md:order-2 content-align-left mobile-align-left\">\n                                \n                                    <h3>Pull clean, usable addresses from messy real-world text<\/h3>\n                                \n                                    <div class=\"lead max-w-[54rem]\">\n                        <p>Using machine learning we help you to extract names, streets, cities, states, and ZIP codes from emails, support tickets, and free-form messages. Unstructured content is instantly converted into structured, usable address data that can pre-fill forms for quick confirmation, reduce manual entry, and improve accuracy over time as the model continues to learn from real inputs.<\/p>                    <\/div>\n                                \n                                \n                            <\/div>\n\n            <!-- Media Column -->\n            <div class=\"column-media w-full md:col-span-6 md:order-1\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/02\/pull-clean-usable-addresses-from-messy-real-world-text-260220-1417.webp\" alt=\"\" class=\"rounded-xl\" \/>\n                            <\/div>\n\n        <\/div>\n            <div class=\"columns flex-col-reverse items-center zig-zag-row\" data-row=\"5\">\n            \n            <!-- Text Column -->\n            <div class=\"column-content w-full md:col-span-6 md:order-1 content-align-left mobile-align-left\">\n                                \n                                    <h3>Integrate address verification directly into your checkout experience<\/h3>\n                                \n                                    <div class=\"lead max-w-[54rem]\">\n                        <p>Clean and confirm addresses in real time as shoppers type\u2014prompting for missing unit details, verifying city, state, and postal code combinations, and correcting errors before orders are placed. Catch issues early to reduce failed deliveries, eliminate post-purchase friction, and create faster, more confident checkout experiences that drive higher conversion.<\/p>                    <\/div>\n                                \n                                \n                            <\/div>\n\n            <!-- Media Column -->\n            <div class=\"column-media w-full md:col-span-6 md:order-2\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/02\/integrate-address-verification-directly-into-your-checkout-experience-260220-1417.webp\" alt=\"\" class=\"rounded-xl\" \/>\n                            <\/div>\n\n        <\/div>\n            <div class=\"columns flex-col-reverse items-center zig-zag-row\" data-row=\"6\">\n            \n            <!-- Text Column -->\n            <div class=\"column-content w-full md:col-span-6 md:order-2 content-align-left mobile-align-left\">\n                                \n                                    <h3>Use validated addresses across your entire shipping stack<\/h3>\n                                \n                                    <div class=\"lead max-w-[54rem]\">\n                        <p>Once verified, a standardized address flows seamlessly through rate shopping, label creation, tracking, and downstream systems. Every step of fulfillment operates from the same trusted source of data, reducing exceptions and mismatches. The result is a single source of truth from checkout through carrier handoff\u2014supporting consistent, accurate delivery at scale.<\/p>                    <\/div>\n                                \n                                \n                            <\/div>\n\n            <!-- Media Column -->\n            <div class=\"column-media w-full md:col-span-6 md:order-1\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/02\/use-validated-addresses-across-your-entire-shipping-stack-260220-1417.webp\" alt=\"\" class=\"rounded-xl\" \/>\n                            <\/div>\n\n        <\/div>\n                <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n\n\n<section class=\"block block-cards US \"><div class=\"bg-grey-lightest background--full content--full\">\n\n<div id=\"block-cards-block_b4690208ae750cc9d13efb42601b67b8\" class=\"block-cards resources-cards\">\n\t<div class=\"container pb-8\">\n\t\t<div class=\"acf-innerblocks-container\">\n<section class=\"block block-feature-text US \"><div class=\"content--sm\">\n<div id=\"feature-text-block-block_ff18364feef07278c9b1d101690e2bb6\" class=\"feature-text-block pb-6\">\n\t<div class=\"container\">\n\t\t<div class=\"content content-align-center\">\n\t\t\t\t\t<p class=\"eyebrow\">RELATED CONTENT<\/p>\n\t\t\t\t\t\t\t\t\t\t<h2 class=\"\">Helpful Shipping Resources<\/h2>\n\t\t\t\t\t\t\t\t<div class=\"text-lg max-w-[68rem]\"><p>Browse additional articles, guides, and insights related to shipping and fulfillment. These resources provide practical advice and best practices to support your day-to-day operations.<\/p>\n<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t<div class=\"acf-innerblocks-container\"><\/div>\n\t<\/div>\n<\/div>\n<\/div><\/section>\n<\/div>\n\t\t\n\t\t\n\t\t\t\t\t<div class=\"cards  columns-3 layout-grid\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card card-icon card-shadow bg-white items-center text-center \">\n\t\t\t\t\t\t\t\n<img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2025\/12\/IconExchanges-BrandShipstation-2-colorTrue.svg\"  sizes=\"auto, (max-width: 64px) 100vw, 64px\" loading=\"lazy\"   class=\"icon\" alt=\"Save on shipping icon\" width=\"64\" height=\"64\">\n<div class=\"card-content h-full\">\n    <div class=\"card-text\">\n                    <h5>The Cheapest Way to Ship Packages<\/h5>\n                             <p>Finding the cheapest way to ship a package doesn\u2019t mean sacrificing quality. Affordable shipping rates are available to anyone that knows where to look.<\/p>\n            <\/div>\n\n            <div class=\"card-cta\">\n            <a class=\"link-btn no-underline\" href=\"\/blog\/cheapest-way-to-ship\/\" target=\"\">Read the Blog<\/a>\n        <\/div>\n    <\/div>\n\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card card-icon card-shadow bg-white items-center text-center \">\n\t\t\t\t\t\t\t\n<img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2025\/12\/IconCurrency02-BrandShipstation-2-colorTrue.svg\"  sizes=\"auto, (max-width: 64px) 100vw, 64px\" loading=\"lazy\"   class=\"icon\" alt=\"Shipping rate calculator\" width=\"64\" height=\"64\">\n<div class=\"card-content h-full\">\n    <div class=\"card-text\">\n                    <h5>Calculate Shipping Costs and Start Saving Now<\/h5>\n                             <p>Whether you\u2019re shipping a single order or managing high-volume ecommerce fulfillment, ShipStation\u2019s shipping cost calculator helps you get fast, reliable quotes from top carriers so you can save time and money with every label.<\/p>\n            <\/div>\n\n            <div class=\"card-cta\">\n            <a class=\"link-btn no-underline\" href=\"\/shipping-rates-calculator\/\" target=\"\">Use the Shipping Rates Calculator<\/a>\n        <\/div>\n    <\/div>\n\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card card-icon card-shadow bg-white items-center text-center \">\n\t\t\t\t\t\t\t\n<img decoding=\"async\" src=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/01\/usps-icon.webp\" srcset=\"https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/01\/usps-icon.webp 200w, https:\/\/www.shipstation.com\/wp-content\/uploads\/2026\/01\/usps-icon-150x150.webp 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" loading=\"lazy\"   class=\"icon\" alt=\"USPS icon\" width=\"200\" height=\"200\">\n<div class=\"card-content h-full\">\n    <div class=\"card-text\">\n                    <h5>USPS Flat Rate Boxes, Envelopes, and Prices<\/h5>\n                             <p>USPS Flat Rate boxes and envelopes allow you to ship up to 70 lbs with USPS Priority Mail\u00ae at one low rate to anywhere in the US. The advantage of Flat Rate is that regardless of how much you fit into the packaging, it\u2019s allowable.<\/p>\n            <\/div>\n\n            <div class=\"card-cta\">\n            <a class=\"link-btn no-underline\" href=\"\/stories\/cocktail-courier-ensures-compliant-last-mile-delivery-with-shipstation-dropship-manager\/\" target=\"\">Read the Blog<\/a>\n        <\/div>\n    <\/div>\n\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n<\/div>\n<\/div><\/section>\n\n\n<style>\n.resources-cards img {\n    border-radius: 8px;\n}\n<\/style>\n\n\n<section class=\"block block-feature-text US \"><div class=\"bg-cobalt-lighter background--full content--sm\">\n<div id=\"feature-text-block-block_affb8650b48a241052e79e3ab39319b4\" class=\"feature-text-block pb-6\">\n\t<div class=\"container\">\n\t\t<div class=\"content content-align-center\">\n\t\t\t\t\t\t\t\t\t\t<h2 class=\"\">Ready to get started?<\/h2>\n\t\t\t\t\t\t\t\t<div class=\"text-lg max-w-[68rem]\"><p>ShipStation API removes the complexities of shipping. Scale your business with our industry-leading API, comprehensive documentation, and vast carrier network.<\/p>\n<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"btn-group\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.shipengine.com\/signup\/\" target=\"_blank\" class=\"btn\">Sign Up<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.shipengine.com\/contact\/\" target=\"_blank\" class=\"btn outline\">Contact Our Sales Team<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\n\t\t<div class=\"acf-innerblocks-container\"><\/div>\n\t<\/div>\n<\/div>\n<\/div><\/section>\n\n\n<section class=\"wp-block-shipstation-faqs block not-prose\">\n    <div class=\"background--full content--lg\">\n        <div class=\"accordion-block\">\n            <div class=\"container\">\n                    <div class=\"content content-align-center items-center content-width-md\">\n                                        \n                                            <h3>Frequently asked questions about shipping address verification<\/h3>\n                                        \n                                        \n                                        \n                                    <\/div>\n                        <div class=\"accordions\">\n                                            <div class=\"accordion\">\n                            <div class=\"question\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\">\n                                <h5>What is ShipStation API\u2019s address verification tool?<\/h5>\n                                <div class=\"icon\">\n                                    <svg class=\"span-2\" width=\"16\" height=\"17\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke-width=\"1.5\" stroke=\"currentColor\">\n                                        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M19.5 8.25l-7.5 7.5-7.5-7.5\" \/>\n                                    <\/svg>\n                                <\/div>\n                            <\/div>\n                            <div class=\"body-content\">\n                                <div class=\"prose\"><p>A <a href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/address-validation\/\">shipping address verification<\/a> <a href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/shipping\/\">API<\/a> is a service your systems call to confirm that an address is real, complete, and deliverable. ShipStation APIs check addresses against trusted postal data, clean the format, and return a standardized, validated address object that you can use throughout your fulfillment workflow.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                            <div class=\"accordion\">\n                            <div class=\"question\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\">\n                                <h5>How does address validation improve the delivery experience?<\/h5>\n                                <div class=\"icon\">\n                                    <svg class=\"span-2\" width=\"16\" height=\"17\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke-width=\"1.5\" stroke=\"currentColor\">\n                                        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M19.5 8.25l-7.5 7.5-7.5-7.5\" \/>\n                                    <\/svg>\n                                <\/div>\n                            <\/div>\n                            <div class=\"body-content\">\n                                <div class=\"prose\"><p>By validating addresses before you <a href=\"https:\/\/www.shipstation.com\/fulfillment\/shipping\/print-labels\/\">print labels<\/a>, ShipStation helps prevent failed deliveries, carrier address correction fees, and return shipments. You catch issues such as invalid postal codes, missing apartment numbers, or impossible city and state combinations, which keep more packages moving on time.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                            <div class=\"accordion\">\n                            <div class=\"question\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\">\n                                <h5>Can I validate international addresses with ShipStation API?<\/h5>\n                                <div class=\"icon\">\n                                    <svg class=\"span-2\" width=\"16\" height=\"17\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke-width=\"1.5\" stroke=\"currentColor\">\n                                        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M19.5 8.25l-7.5 7.5-7.5-7.5\" \/>\n                                    <\/svg>\n                                <\/div>\n                            <\/div>\n                            <div class=\"body-content\">\n                                <div class=\"prose\"><p>Yes. ShipStation <a href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/address-validation\/\">address validation<\/a> supports addresses across many countries and regions, so you don\u2019t have to compromise on your <a href=\"https:\/\/www.shipstation.com\/fulfillment\/shipping\/international\/\">global shipping<\/a> strategy. The <a href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/shipping\/\">API<\/a> standardizes each address to local formatting rules, improving carrier acceptance and reducing delays at handoff or in customs.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                            <div class=\"accordion\">\n                            <div class=\"question\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\">\n                                <h5>Where can I add address verification in my experience?<\/h5>\n                                <div class=\"icon\">\n                                    <svg class=\"span-2\" width=\"16\" height=\"17\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke-width=\"1.5\" stroke=\"currentColor\">\n                                        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M19.5 8.25l-7.5 7.5-7.5-7.5\" \/>\n                                    <\/svg>\n                                <\/div>\n                            <\/div>\n                            <div class=\"body-content\">\n                                <div class=\"prose\"><p>You can use the <a href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/shipping\/\">API<\/a> at checkout, in customer account pages, in your <a href=\"https:\/\/www.shipstation.com\/fulfillment\/order-management\/\">order management<\/a> system, or anywhere you collect or edit shipping details. Many merchants validate at checkout. Then they revalidate before label creation for extra protection.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                            <div class=\"accordion\">\n                            <div class=\"question\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\">\n                                <h5>How hard is it to integrate the address verification API?<\/h5>\n                                <div class=\"icon\">\n                                    <svg class=\"span-2\" width=\"16\" height=\"17\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke-width=\"1.5\" stroke=\"currentColor\">\n                                        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M19.5 8.25l-7.5 7.5-7.5-7.5\" \/>\n                                    <\/svg>\n                                <\/div>\n                            <\/div>\n                            <div class=\"body-content\">\n                                <div class=\"prose\"><p>Developers can get started quickly using clear documentation, sample code, and familiar REST patterns. Once integrated, validation becomes a lightweight, automated step that runs in the background of your existing workflows.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                            <div class=\"accordion\">\n                            <div class=\"question\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\">\n                                <h5>Does ShipStation address verification work in real time?<\/h5>\n                                <div class=\"icon\">\n                                    <svg class=\"span-2\" width=\"16\" height=\"17\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke-width=\"1.5\" stroke=\"currentColor\">\n                                        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M19.5 8.25l-7.5 7.5-7.5-7.5\" \/>\n                                    <\/svg>\n                                <\/div>\n                            <\/div>\n                            <div class=\"body-content\">\n                                <div class=\"prose\"><p>Yes. <a href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/\">ShipStation API<\/a> <a href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/address-validation\/\">address verification<\/a> validates and cleans addresses instantly as data is entered\u2014at checkout, in back-office systems, or before label creation. Real-time verification flags errors, fills missing details, and standardizes formatting immediately, helping prevent failed deliveries and shipping exceptions before they impact customers or operations.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                    <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":158,"featured_media":74322,"parent":74164,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_yoast_wpseo_metadesc":"Verify shipping addresses with ShipStation\u2019s API. 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Check address validity, reduce delivery errors, and streamline your workflow with real-time validation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.shipstation.com\/fulfillment\/api\/address-validation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Streamline Shipping with Address Verificati...\" \/>\n<meta property=\"og:description\" content=\"Verify shipping addresses with ShipStation\u2019s API. 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