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Stamps.com VS ZIP Code API

Compare Stamps.com VS ZIP Code API and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Stamps.com logo Stamps.com

Stamps.

ZIP Code API logo ZIP Code API

REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
  • Stamps.com Landing page
    Landing page //
    2022-10-27
  • ZIP Code API Landing page
    Landing page //
    2026-05-21

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America โ€” no separate APIs by country or data type.

What it does

  • Address validation and standardization โ€” production-grade parser with ZIP+4 append, refreshed monthly
  • Radius search โ€” centroid haversine and true spatial polygon intersection. Returns ZIPs/FSAs within range, with per-result pct_inside overlap percentage for spatial queries
  • Unified lookup endpoint โ€” accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
  • Autocomplete/typeahead โ€” cities, counties, metros, states, FSAs, ZIPs
  • Point-to-point distance โ€” between any two postal points
  • Census ACS demographics โ€” 2011โ€“2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
  • Boundary lookups โ€” Census tracts, congressional districts, state legislative areas, school districts โ€” with computed intersection percentages per ZIP

What makes it different

  • Licensed commercial data โ€” not commodity or scraped sources
  • Canadian postal coverage โ€” most peers in this space are US-only
  • True spatial radius โ€” not just centroid haversine
  • 14 years of historical ACS depth via API โ€” unusual outside of raw Census downloads
  • One endpoint for all of North America โ€” no country-detection or input-routing logic to maintain on the client side

Pricing

  • Free โ€” 2,500 lookups/day, no credit card required, no expiry
  • Developer โ€” $49/mo, 100K credits, 300/min
  • Professional โ€” $149/mo, 350K credits, 300/min
  • Business โ€” $499/mo, 1.5M credits, 600/min
  • Credit packs โ€” one-time, from 25K ($19) up to 2M ($799)

Resources

Stamps.com features and specs

  • Convenience
    Stamps.com allows users to purchase and print postage from the comfort of their home or office, eliminating the need to visit the post office.
  • Time-Saving Features
    Automated shipping label generation, address verification, and batch processing can save significant time, especially for businesses that handle a high volume of mail.
  • Discounted Rates
    Stamps.com offers discounted postage rates compared to standard USPS pricing, which can result in cost savings over time.
  • Integration with Other Platforms
    The service integrates with popular e-commerce platforms like eBay, Amazon, and Shopify, which streamlines the shipping process for online sellers.
  • Tracking and Reporting
    Robust tracking and reporting features help users manage shipments and monitor mailing expenses more effectively.

Possible disadvantages of Stamps.com

  • Monthly Subscription Fee
    Stamps.com requires a monthly subscription fee, which may not be cost-effective for individuals or businesses with low mailing volumes.
  • Learning Curve
    New users may face a learning curve when navigating the platform and utilizing all its features, potentially requiring time and effort to become proficient.
  • Software Requirements
    Users need to download and install the Stamps.com software, which could be a hassle for those with limited computer skills or those who prefer entirely web-based solutions.
  • Customer Support Issues
    Some users have reported issues with customer support, such as long wait times or insufficient assistance in resolving problems.
  • Overage Fees
    If users exceed their monthly print limit, they may incur additional fees, potentially leading to unexpected costs.

ZIP Code API features and specs

  • Comprehensive ZIP Code Data
    The ZIP Code API from zip-codes.com provides extensive data including ZIP code details, city information, state data, and geographic coordinates, making it a thorough resource for location-based lookups.
  • Multiple Lookup Options
    The API supports various types of lookups including ZIP code to city/state, city/state to ZIP code, distance calculations between ZIP codes, and radius searches, offering flexible querying capabilities.
  • Easy Integration
    The API uses standard REST-based HTTP requests and returns data in commonly used formats like JSON and XML, making it straightforward to integrate into most applications and programming languages.
  • Distance and Radius Calculations
    The API includes built-in functionality for calculating distances between ZIP codes and finding ZIP codes within a specified radius, which is valuable for store locators, shipping estimates, and proximity-based features.
  • Well-Documented Endpoints
    The API provides clear documentation for its various endpoints and parameters, helping developers understand available features and implement them correctly without extensive trial and error.

Analysis of ZIP Code API

Overall verdict

  • ZIP Code API from zip-codes.com is a solid, reliable choice for developers and businesses needing accurate US and Canadian postal code data, offering a straightforward RESTful interface with regularly updated databases.

Why this product is good

  • Provides accurate and frequently updated ZIP code, city, state, and geographic data
  • Offers a simple RESTful API that is easy to integrate into web and mobile applications
  • Supports features like ZIP code lookup, radius search, and distance calculations
  • Includes both US ZIP codes and Canadian postal codes for broader coverage
  • Backed by an established data provider with a long track record in postal data

Recommended for

  • Developers building address validation or autofill features
  • E-commerce platforms needing shipping and location-based calculations
  • Businesses performing geographic or radius-based store locators
  • Applications requiring reliable US and Canadian postal data
  • Marketing and logistics teams that need regional or demographic targeting

Stamps.com videos

+ Add

Stamps.com Review 2020: Stamps.com is fine with me

More videos:

  • Tutorial - Stamps.com REVIEW: Full Step-By-Step Tutorial (2020) FREE TRIAL PLUS STAMPS IN DESCRIPTION
  • Review - Save Money With Stamps.com Shipping From Home!

ZIP Code API videos

No ZIP Code API videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Stamps.com and ZIP Code API)

Stamps.com

ZIP Code API

Shipping and Tracking
100 100%
Shipping and Tracking
0% 0
Zip Lookup
0 0%
Zip Lookup
100% 100
Shipping
100 100%
Shipping
0% 0
APIs
0 0%
APIs
100% 100

User comments

Share your experience with using Stamps.com and ZIP Code API. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Stamps.com seems to be more popular. It has been mentiond 203 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Stamps.com mentions (203)

  • New online shop, need Tech side assistance, best resources?
    I'll have approx 10-20 products, would like to have live inventory, and be able to accept CC payments and initiate shipping labels through USPS or stamps.com type of thing. The idea would be that the functionality of the site minimizes the labor of order fulfillment. I have an etsy store for 4 products and like the way that is done. Unfortunately, the products are probably not appropriate for Shopify or Etsy type... Source: over 2 years ago
  • Stamp.com and shipstation integration can double charge you for labels without you knowing
    When I opened up the order history in stamps.com I noticed that there were dupliacte labels purchased for the same order number. Then I went over to shipstation to see if the duplicate shipping label were imported and there was no record of it being there at all. So stamps.com would occasionaly purchase 2-4 labels for one order but only send one of the labels through to shipstaion. Since we never log in to... Source: over 2 years ago
  • Which company offers the cheapest shipping rates?
    I have been very happy with my Shipstation rates, but the incredible customer service I get direct with a UPS rep on my other accounts is second to none. I do hate having to constantly reload a stamps.com balance and I would much prefer invoice billing like I get direct with UPS. Source: over 2 years ago
  • I found this whole mountain made of bonsai soil. I wish I could bag it up and take some home. This was incredible after paying $20 for a little bag of this stuff.
    The cost to ship the box is $22.80 (and would be cheaper if you use something like stamps.com) and the 3.43 gallons of pumice would cost $1.67, making your total cost to buy and ship $24.47, which is $7.33/gallon. Source: about 3 years ago
  • Received Unsolicited Coins Through USPS - Scam
    My USPS Informed Delivery email says I have a package from stamps.com waiting for me. I didn't order anything from stamps.com. Source: about 3 years ago
View more

ZIP Code API mentions (0)

We have not tracked any mentions of ZIP Code API yet. Tracking of ZIP Code API recommendations started around May 2026.

What are some alternatives?

When comparing Stamps.com and ZIP Code API, you can also consider the following products

ShipStation - Seamless eCommerce shipping fulfillment software. Wherever you sell, however you ship, ShipStation can help. Auto order import, batch label print, & more!

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

ShippingEasy - ShippingEasy is just that: Shipping made easy. Process orders, automate shipping, get discounted rates, and optimize your entire shipping process.

Zipcodestack - Free Zip Code API - Free Postal Code Validation | Zipcodestack

Shippo - Shipping, easy and affordable for everyone. A set of unified APIs and tools that instantly enables you to ship your goods internationally

PostalDataPI - The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

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