We Will Print & Mail Your Campaign Within 24 Hours.

API Letter Mailing Platform

  • Free to use, pay as you go platform
  • 24 Hour turnaround SLA
  • Volume based discounts
Full documentation, quick setup & fully supported

Register and send your first campaign in minutes

Trusted by Industry Leading Companies

Our letter Pricing Mailed to the United States

*All prices are in USD
mailing to the United States 1 to 1000 1001 to 25000 25001 to 50000 50001 or more
8.5x11 Letters 1 to 1000: $0.85 1001 to 25,000: $0.78 25,001 to 50,000:  $0.70 50,001 or more: $0.65
8.5x11 LettersMailed First Class 1 to 1000: $1.10 1001 to 25,000: $1.03 25,001 to 50,000:  $0.95 50,001 or more: $0.90
8.5x11 Letters XL Window 1 to 1000: $0.89 1001 to 25,000: $0.82 25,001 to 50,000:  $0.74 50,001 or more: $0.69

International Mail

*All prices are in USD
Mailing Internationally 1 to 1000 1001 to 25000 25001 to 50000 50001 or more
8.5x11 Letters - United Kingdom 1 to 1000: $0.97 1001 to 25,000: $0.94 25,001 to 50,000:  $0.94 50,001 or more: $0.94
8.5x11 Letters - ROW 1 to 1000: $1.84 1001 to 25,000: $1.79 25,001 to 50,000:  $1.79 50,001 or more: $1.79
Call us for high volume pricing discounts and custom formats.


Rest API & Integration

A platform built for developers. Our APIs simple & robust, enabling access to every action and resource needed for sending & managing your direct mail. Don't fancy coding yourself? That's fine we have integration with Zapier and 1st class plugins for popular 3rd party services.

CAAS Certified Address Verification

When you upload your data to our system we check the addresses against USPS database. The address is analyzed to see if it is deliverable and reformatted to match the USPS guidelines.

Flexible Templating

Our easy to use system allows you to create and trigger multiple templates for your campaigns, or even use completely different images and text for each recipient.

Analytics and Tracking

Do you need to know where your mail is and when your recipients will get it? We've got you covered

Automation with Triggers

Triggered direct mail campaigns are the perfect way to contact customers on dates that are relevant to their personal customer journey. Anniversaries, renewal dates, birthday's, 'time-sensitive' offers; if you've got the data, we've got the platform!

Dedicated Expert Support

When you sign up for a Stannp account your dedicated account manager is available to support you via phone, email or web chat.