Whistl, previously known as TNT Post, is a post and delivery management company based in the UK.
Whistl, previously known as TNT Post, is a post and delivery management company based in the UK. They offer a diverse portfolio of UK and multinational package shipment solutions and single collection options for customers sending more than 200 items each day. Courier API can make your Whistl integration even more powerful as we have developed a Shipping API that allows you to integrate over 50 couriers to your eCommerce business at affordable prices. We have initially developed this software to support synergy with our own warehouse management system. Then realised in no time the need for spreading this beneficial tool to other companies so they can grow their business. Our REST API integration enables you to: Get access to all the UK’s primary national and international transport and logistics services. Other carriers available for integration include Royal Mail, Amazon Shipping, TNT, Yodel and many others, Quickly and easily combine multiple shipping channels to your website at the click of a button, Generate labels with API requests centrally, Minimise delays that are due to incorrect address inputs thanks to our intelligent address formatting software, Make sure that all your customer and courier data is fully encrypted using the latest technology, including world-beating AES-256 encryption. Get in touch today to find out how our courier management software can revolutionise your delivery software and start using our free demo immediately