Postal API for Print and Mail Review
In the past, sending documents like invoices and checks through the United States Postal Service has been a tedious process that involves printing, folding, stuffing, stamping, and delivering them to a postal facility. DocuSend’s cloud service takes care of all the printing, envelopes, paper, and stamps for you.
Their platform integrates with CRMs and other software platforms to automatically generate offline communications based on trigger events. Their API also supports dynamic personalization for letters, postcards, and other types of direct mail.
They offer a variety of payment options to help customers manage costs, including prepayment discounts and flexible subscription plans. Additionally, their team can assist you with any regulatory or compliance issues you may encounter.
Xpressdocs’s API allows you to add snail mail capability to your existing software systems, and includes tools for address verification, data quality, duplicate detection, and presorting. Their scalable and secure API solution is CASS certified, and all of their partners are SOC-II, HIPAA compliant.
They’ve compiled the most important aspects of their platform into this handy reference guide, including an overview of each of the API endpoints. The API has a sandbox mode where actual letters are not sent, and developers can test their integrations in this environment before moving to live. The sandbox has all the same features as live, and any errors that occur while testing will not impact the functionality of your application. In addition to the sandbox, Xpressdocs provides tracking information for submitted jobs in real time. The TrackingTimestamp and FileDate communicate when the USPS is expecting delivery, while PrintedDate and MailedDate indicate when the submission was printed and prepared for delivery, respectively.
SITES WE SUPPORT
Track Postage Rates – Wix














