Midwest Label Supply offers comprehensive API-driven direct mail services designed to revolutionize your marketing communication strategy. Our platform enables you to programmatically send physical stickers and postcards just like you'd send emails, integrating seamlessly with your existing systems through RESTful APIs. Businesses can now automate the delivery of custom sticker sheets and explainer cards in envelopes, triggered by customer actions or predetermined schedules.
Physical mail is going digital - not in delivery, but in how it's created and managed. While companies like Lob, PostGrid, and Postalytics have pioneered this space, sticker sheets remain an underserved product category, representing a significant opportunity. Our service fills this gap by specializing in high-quality sticker sheet fulfillment combined with postcards and explainer materials, all delivered through a robust API that integrates with your existing marketing stack.
The US market for API-driven physical mail services features several established players, each with distinct positioning:
While postcards are well-represented across all competitors, sticker sheets in envelopes remain an underserved product category where our service excels. Our specialized fulfillment system handles the complexities of sticker production, packaging, and delivery - all through a single API call.
Our API implementation follows RESTful patterns with JSON-based data exchange, making it accessible to developers in any programming language. Authentication employs API keys with separate test and live environments to facilitate development and testing before production deployment.
A typical implementation for creating a sticker sheet mailing with our service looks like:
// API call to send sticker sheets in envelope
const mailingData = {
to: {
name: "John Recipient",
address_line1: "123 Main Street",
address_city: "San Francisco",
address_state: "CA",
address_zip: "94107"
},
from: {
name: "Sender Name",
address_line1: "456 Market Street",
address_city: "San Francisco",
address_state: "CA",
address_zip: "94105"
},
sticker_template: "spring_promotion_2025",
explainer_card: "welcome_instructions",
metadata: {
campaign_id: "spring_promotion_2025",
customer_id: "cust_123456"
}
};
const result = await stickerMailApi.create(mailingData);
Our service leverages platform connectors as a primary integration method, allowing businesses to incorporate direct mail into existing workflows rather than adopting entirely new systems. Key integration platforms include:
Our API-driven mail service excels in these high-ROI marketing scenarios:
Financial services companies and subscription businesses automatically send welcome packets with custom sticker sheets upon account activation or first purchase. E-commerce platforms implement "Thank You" cards with included stickers, automatically triggered after first purchases and often including QR codes for digital engagement. Companies report 25-30% improvements in customer retention when using physical welcome materials versus digital-only onboarding.
Retail businesses use our API to send physical loyalty rewards including sticker sheets based on spending thresholds. Restaurants leverage postcards for loyalty programs with tear-off elements for in-store redemption, while financial services firms send personalized cards for loyalty program milestone achievements.
Our clients have achieved up to 128% ROI increase on reactivation campaigns by using A/B testing on direct mail with different variants. E-commerce companies frequently implement automated sticker sheet and postcard sends to customers who haven't made purchases in 3-12 months. Some companies specifically target email unsubscribers with direct mail, maintaining communication with customers who have opted out of digital channels.
Our service leverages the USPS Intelligent Mail barcode (IMb) system and Informed Visibility infrastructure to provide comprehensive tracking capabilities. The 65-bar IMb encodes routing and tracking information for each mail piece, enabling delivery confirmation.
We deliver tracking notifications through multiple channels:
The typical mail journey tracked includes: received/created → in production → mailed → in transit → in local area → processed for delivery → delivered, with scan visibility on over 99% of mailings.
Our powerful API integration capabilities allow your systems to seamlessly trigger direct mail touchpoints based on customer actions or predetermined schedules. This creates a true omnichannel marketing experience where digital interactions can automatically initiate physical mail delivery. Integration options include:
As USPS bulk mail specialists, we ensure your campaigns benefit from optimal postage rates and reliable delivery. Our team handles all aspects of mail preparation, including:
Every mailing can be fully personalized using our advanced variable data printing technology. Beyond basic name and address fields, we can customize images, offers, messaging, and even design elements based on customer data. This 1:1 personalization dramatically increases response rates compared to generic mailings.
For maximum impact, our direct mail solution integrates with your broader marketing automation strategy. We can design workflows that incorporate direct mail touchpoints at critical moments in the customer journey, complementing email, SMS, and other digital channels. This integrated approach ensures consistent messaging across all customer touchpoints.
Contact us today to discover how our API-driven direct mail service with sticker sheet fulfillment can revolutionize your marketing communication strategy and deliver measurable ROI.