Lob.com Pricing: Address Verification & Print Mail Costs (2026)

Pricing overview

Lob.com primarily offers a usage-based pricing model across its core products: Address Verification and Print & Mail. This structure means that users are billed based on the volume of verifications performed or mail pieces sent. The cost per unit typically decreases as the volume of usage increases, reflecting a tiered discount system. This approach is common among API providers that process transactional data or physical output, allowing scalability for businesses of varying sizes Lob.com pricing details. Developers and technical buyers can find specific rate cards on the official Lob.com pricing page.

For Address Verification, the primary metric is the number of API calls resulting in a verification. For Print & Mail, costs are determined by factors such as the type of mail piece (e.g., postcard, letter, check), the number of pages, print color, and mailing class (e.g., First-Class, Standard Mail). Additional services like international mail, custom envelopes, or specific delivery tracking options may incur separate charges. Understanding the specific parameters for each service is crucial for accurate cost estimation Lob API reference documentation.

Plans and tiers

Lob.com's pricing structure is organized into tiers that offer different rates based on volume. While there are no traditional "plans" with fixed feature sets beyond the core API capabilities, the pricing tiers function similarly to plans by defining the effective cost per unit. These tiers are generally designed to reward higher volume usage with reduced per-unit costs, making the service more economical for large-scale operations.

Address Verification pricing tiers

The Address Verification API offers tiered pricing based on the total number of successful verifications per month. The base rate starts at $0.006 per verification for lower volumes. As usage increases, the per-verification cost decreases. This model is suitable for applications requiring real-time address validation at scale, such as e-commerce checkout flows or CRM data hygiene Lob.com Address Verification pricing.

Print & Mail pricing tiers

Pricing for Print & Mail services is more complex due to the variety of mail types and options. Each mail piece — postcards, letters, checks — has its own base rate, which then scales down with volume. For instance, the cost of sending 1,000 postcards per month will be higher on a per-piece basis than sending 100,000 postcards. Factors affecting the price include:

• Mail Type: Postcards, letters, self-mailers, checks.
• Size: Different dimensions for postcards and letters.
• Pages: For letters, the number of pages impacts printing and postage costs.
• Color: Full-color printing typically costs more than black and white.
• Mailing Class: First-Class Mail (faster, higher cost) vs. Standard Mail (slower, lower cost).
• Volume: Higher monthly volumes unlock lower per-piece rates.
• Enclosures: Additional inserts in letters.

Customers can consult the detailed pricing calculator on Lob.com's pricing page to estimate costs for specific print and mail campaigns Lob.com Print & Mail pricing calculator.

Free tier and limits

Lob.com provides a free tier for its Address Verification API. This tier includes 1,000 free address verifications per month. This allows developers to integrate and test the API extensively without incurring immediate costs, and it can also accommodate low-volume production needs. If monthly usage exceeds 1,000 verifications, the standard tiered pricing model applies to the excess usage for that month.

The free tier is specifically for Address Verification. Print & Mail services do not have a free usage tier; all print and mail pieces incur charges from the first piece. However, Lob.com offers a sandbox environment for testing Print & Mail API calls without actual printing or mailing, allowing developers to ensure integration correctness before initiating paid services Lob API testing environment documentation.

Real-world cost examples

To illustrate Lob.com's usage-based pricing, consider a few common scenarios:

Example 1: E-commerce address validation

An e-commerce store integrates the Address Verification API into its checkout process. The store processes approximately 15,000 orders per month, each requiring address validation.

• Free Tier Usage: First 1,000 verifications are free.
• Paid Usage: 14,000 verifications (15,000 - 1,000).
• Cost Calculation: Assuming a tiered rate where the first 10,000 paid verifications cost $0.006 each, and the next 4,000 cost $0.005 each (example rates based on typical volume discounts).
• Estimated Monthly Cost: (10,000 * $0.006) + (4,000 * $0.005) = $60 + $20 = $80.

This example demonstrates how the free tier offsets initial costs and how volume discounts can impact the total expenditure.

Example 2: Marketing postcard campaign

A marketing team decides to send out 5,000 standard 4x6 inch postcards to a segmented customer list using the Print & Mail API, using First-Class Mail.

• Mail Type: 4x6 inch Postcard.
• Volume: 5,000 pieces.
• Mail Class: First-Class Mail.
• Cost Calculation: Referring to Lob.com's pricing for 4x6 postcards, First-Class Mail, a typical rate for 5,000 pieces might be around $0.65 per piece (inclusive of printing and postage).
• Estimated Monthly Cost: 5,000 * $0.65 = $3,250.

This cost would include the printing, addressing, and postage for each postcard. The exact rate would depend on the specific tier and any current postal rates.

Example 3: Monthly bill delivery

A utility company uses the Print & Mail API to send 25,000 one-page, black & white letters (8.5x11 inches, folded, in a standard envelope) via Standard Mail to its customers each month.

• Mail Type: 8.5x11 inch Letter, 1 page.
• Volume: 25,000 pieces.
• Color: Black & White.
• Mail Class: Standard Mail.
• Cost Calculation: Based on Lob.com's tiered pricing for letters, a rate for 25,000 Standard Mail letters might be approximately $0.80 per piece (including printing, folding, envelope, and postage).
• Estimated Monthly Cost: 25,000 * $0.80 = $20,000.

These examples are illustrative and actual costs may vary based on specific service configurations, current postal rates, and individual contract terms. It is recommended to use the official Lob.com pricing calculator for precise estimates Lob.com's detailed pricing page.

How the pricing compares

Lob.com's pricing model for address verification and print & mail services aligns with common industry practices for API-driven solutions. Many providers in this space, such as Smarty and Melissa for address verification, and EasyPost for shipping and mailing APIs, also utilize usage-based models with tiered discounts Smarty pricing tiers. The key differentiation often lies in the specific per-unit rates at various volume thresholds, the breadth of services offered within each category, and the inclusion of features like international address validation or advanced mail tracking.

Address Verification comparison

For address verification, Lob.com's starting rate of $0.006 per verification is competitive. Alternative providers like Smarty (formerly SmartyStreets) also offer tiered pricing for address validation, with similar mechanisms for volume discounts Smarty address validation pricing. Melissa provides a range of data quality services, including address verification, often bundled or with specific enterprise pricing models Melissa address verification solutions. When comparing, organizations typically evaluate:

• Free Tier Allowance: Lob.com's 1,000 free monthly verifications can be a deciding factor for low-volume users.
• Per-Unit Cost at Volume: Comparing the cost per verification at specific volumes (e.g., 10,000, 100,000, 1,000,000 verifications/month).
• API Features: Accuracy of validation, international coverage, and additional data points returned (e.g., geocodes, delivery point validation).

Print & Mail comparison

In the Print & Mail API sector, competitors like EasyPost offer similar services for programmatic mail sending. Their pricing models generally follow a per-piece charge that includes printing and postage, also with volume-based discounts EasyPost shipping API pricing. Key comparison points include:

• Mail Piece Variety: The range of postcards, letters, checks, and other mail types supported.
• Print Quality and Options: Availability of color printing, different paper stocks, and custom branding.
• Postage Rates: While often tied to USPS or other national postal services, the efficiency of the mail house and volume discounts can impact the final price.
• Ancillary Services: Features such as certified mail, return mail handling, and detailed tracking.

Ultimately, the "best" pricing depends on an organization's specific requirements, expected volume, and the criticality of features beyond the basic service. A comprehensive evaluation involves not just the per-unit cost but also the ease of integration, reliability, and support offered by each provider.