Direct Mail API: Automate Postcard Campaigns with the Postal Agent API

Direct Mail API: Automate Postcard Campaigns with the Postal Agent API

Build Direct Mail into Your Applications with the Postal Agent API

For developers and businesses looking to add direct mail capabilities to their software, the Postal Agent API provides everything you need to send postcards programmatically. Whether you're building a custom CRM, automating marketing workflows, or integrating direct mail into an existing platform, our API gives you full control over your postcard campaigns without leaving your codebase.

Why Developers Choose a Direct Mail API

Manual direct mail processes don't scale. When you need to send postcards triggered by user actions, scheduled events, or data changes in your system, an API-first approach is the only solution that makes sense. The Postal Agent direct mail API lets you automate postcard sending based on any logic you define—new customer signups, purchase anniversaries, appointment reminders, abandoned cart follow-ups, or any other trigger your application can detect.

Full Control Over Your Direct Mail Workflow

The Postal Agent API is designed for flexibility. Manage your contact lists programmatically, organize recipients into segments, create and store reusable templates, build campaigns, and submit them for printing and mailing—all through simple API calls. This means your direct mail operations can run entirely in the background, integrated seamlessly with your existing systems and databases.

Use Cases for Direct Mail API Integration

Developers are using the Postal Agent API to power a wide range of direct mail automation scenarios: SaaS platforms adding postcard features for their users, e-commerce stores sending personalized offers based on purchase history, property management companies automating tenant communications, healthcare providers sending appointment reminders, and marketing agencies building white-label direct mail solutions. If your application has addresses and a reason to reach people offline, the API makes it possible.

Reliable Postcard Delivery at Scale

Sending one postcard or one hundred thousand—the API handles it the same way. Built for production workloads, the Postal Agent API lets you scale your direct mail campaigns without worrying about print schedules, postal logistics, or delivery timelines. Submit your campaign through the API and we handle the rest, from printing to postage to mailbox delivery.

Get Started with the Postal Agent Direct Mail API

Ready to integrate direct mail postcards into your application? The Postal Agent API gives developers the tools to automate postcard campaigns, sync contact data, and send personalized direct mail at scale. Check out our API documentation and start building today.