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Unique Features.
Easy Implementation.

Our Developer Portal includes API documentation, an online API tester, support libraries, samples projects and more.

REST APIs give you the ability to automate requests for Certified Mail cover sheets and labels, complete with electronic postage, as well as to pull delivery information, Proof of Acceptance (Electronic), Proof of Delivery (Electronic), and Return Receipt (Electronic). All directly into your enterprise applications.

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.

SimpleCertifiedMail.com REST APIs
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