Send Mail Online

The Stream
Official LetterStream Blog

Send Mail Magically With The LetterStream API

LetterStream API Solution

LetterStream API Solution

Ever wish for an even faster way to send out USPS First-Class and Certified Mail?

Our website already saves countless hours of tedious work involved with sending mail, but you might be sending so much mail that you need an even faster way.

If so, the LetterStream API might be the solution you need. It allows you to automatically send thousands of pieces of mail instantly through a behind-the-scenes connection to LetterStream computer systems. Most APIs require programmers to implement them, and ours is no different in that regard, but some of our clients have implemented it in just a few days.

Our API is being used by many different types of companies, including software companies, collection agencies, billing companies, etc. and even individuals who need to send a lot of mail quickly. It has access to many of the mailing products available on our website including postcards, first-class letters, invoices, statements, newsletters, checks and certified mail.

You can advertise your partnership with LetterStream or keep it quiet and price the mailings to your customer however you see fit; because with the API your users and customers can send real mail without even knowing about LetterStream.

To learn more, click here to get detailed information about our API, or simply contact us to get started.

More Great Posts

LetterStream

Share:

Additional Great LetterStream Blog Articles
How to Track Certified Mail Online: Complete Guide for Reliable Mail Monitoring

How to Track Certified Mail Online: Complete Guide for Reliable Mail Monitoring

Introduction Few things create more anxiety for businesses and legal professionals than uncertainty about whether critical mail has arrived. When deadlines depend on proof of…

Physical Mail Automation: Streamline Your Business Mail Operations in 2026

Physical Mail Automation: Streamline Your Business Mail Operations in 2026

Introduction Manual mail handling creates bottlenecks that slow business operations to a crawl. Printing documents, stuffing envelopes, filling out Certified Mail forms by hand, and…

Certified Mail with Electronic Return Receipt: A Smarter Way to Track Signatures

Certified Mail with Electronic Return Receipt: A Smarter Way to Track Signatures

d When you send important business mail, knowing it arrived is one thing. Having proof that someone signed for it is another. That’s where Certified…

Certified Mail Online Service: Send USPS Certified Mail from Your Computer

Certified Mail Online Service: Send USPS Certified Mail from Your Computer

Introduction Busy professionals lose hours each week standing in post office lines, filling out forms, and manually tracking Certified Mail pieces. For legal teams managing…

Scroll to Top