LetterStream API Information
Getting Started
Tech savvy customers can push documents for printing and mailing directly to our servers, via our API. This is a great option for some companies, but might not be the best option for everyone. Please be sure to read the information contained in this article in order to determine wether or not our API is a good fit for you.
In This Article
Supported Mail Types
1. First Class Letters - mailed in standard #10 double-windowed secure envelope)
2. First Class Letters "HSE" - mailed in standard #10 double-windowed secure envelope with “Homeowner Statement Enclosed” verbiage printed in black ink on the front of the envelopes
3. Certified with Electronic Return Receipt - mailed in standard #10 tri-windowed certified mail envelopes, (includes a third window for certified mail barcode and USPS tracking number)
4. Certified without Electronic Return Receipt - mailed in standard #10 tri-windowed certified mail envelopes, (includes a third window for certified mail barcode and USPS tracking number). Signatures will not be provided by the USPS upon successful delivery
5. Postcards - 5.5” x 4.25” cardstock, addresses on one side, image or pdf imposition included on reverse side
6. Flats - 10x13 windowed envelope capable of holding 75 sheets of 8.5x11 20lb. paper, includes coversheet by default
Unsupported mail types
FedEx is a mail type that only available for corporate-use and is not supported through the API at this time.
Qualification Process
We like to know who's utilizing our API and to help make sure it's the right fit, therefore the API isn't available by default within your account. We spend a lot of time making sure our website is powerful and efficient, and in most cases it's better to send mail through the dashboard directly rather than the API. We also don't integrate the API on your behalf, but rather that needs to be accomplished by a developer on your end. If you'd like to pursue the possibility of utilizing our API, send us an email requesting more information and we'll help determine if it's a good fit from there
Setup and Activation
Once you've been approved and the API has been activated in your account by us, your team can begin the setup process. All of the instructions and documentation needed can be found on the API Information page, under the My Account tab (the API Information option won't exist if the API has not yet been turned on for your account)