Our Developer Portal includes API documentation, an online API tester, support libraries, samples projects and more.
REST APIs enable you to automate requests for First-Cass and Certified Mail cover sheets and labels, complete with electronic postage. Also, to pull down tracking and delivery information, electronic Proof of Acceptance, Proof of Delivery and Return Receipt, and even production and cost data – all directly into your enterprise applications and files.
APIs also provide you with the ability to integrate Mailing Services, which outsources the printing and mailing of both Certified and First-Class Mail and maintains a copy of the transactions and documents for ten years.
Join our developer community.
Designed to be a comprehensive resource for developers, partners, and clients to integrate their own software solutions with our services through REST APIs, the SimpleCertifiedMail.com Developer Portal includes API documentation, an online API tester, support libraries, samples projects and more.