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ZIP Code API VS UpStream Plugin

Compare ZIP Code API VS UpStream Plugin and see what are their differences

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  3. ยป Reviews
  4. ยป Alternatives

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

UpStream Plugin logo UpStream Plugin

UpStream Plugin is a free-to-use project management plugin that allows you to manage various types of projects right from your WordPress site.
  • 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

  • UpStream Plugin Landing page
    Landing page //
    2023-10-04

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.

UpStream Plugin features and specs

  • Project Management Capabilities
    UpStream provides extensive project management features, allowing you to manage tasks, milestones, and project timelines directly within WordPress.
  • User-Friendly Interface
    The plugin offers a user-friendly interface that helps users who are not technically inclined to efficiently manage projects and collaborate with team members and clients.
  • Customizability
    UpStream is highly customizable, allowing you to adapt it to suit your specific project management needs with various extensions and custom fields.
  • Integration with WordPress
    Being a WordPress plugin, UpStream integrates seamlessly into your existing WordPress website, leveraging your current setup without the need for external project management tools.
  • Client Access
    The plugin allows clients to view the progress of the projects, enhancing transparency and communication through easy-to-understand dashboards.

Possible disadvantages of UpStream Plugin

  • Learning Curve
    While user-friendly, new users may require some time to fully understand all the features and customization options available within UpStream.
  • Limited by WordPress Constraints
    As a WordPress plugin, UpStream might have limitations in terms of performance or scalability compared to standalone project management solutions, especially for very large projects.
  • Dependency on Extensions
    While the core plugin offers significant functionality, some advanced features require additional paid extensions, which could increase the overall cost.
  • Potential for Overhead
    Running a project management tool as a plugin on a WordPress site can potentially increase server load and decrease site performance if not managed properly.
  • Support and Documentation
    Some users might find the support and documentation not as comprehensive or responsive as other project management tools, which could hinder troubleshooting and setup.

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

ZIP Code API videos

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UpStream Plugin videos

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Introduction to the UpStream Plugin for WordPress

More videos:

  • Tutorial - How to Redesign the Frontend of the UpStream Plugin

Category Popularity

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What are some alternatives?

When comparing ZIP Code API and UpStream Plugin, you can also consider the following products

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

Jetpack - Jetpack offers SEO and security plugins for Wordpress.

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

WP User Manager - The most customizable profiles, community builder and membership WordPress plugin

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

Project Panorama - Project Panorama is an elegant and reliable WordPress manager plugin that comes with exciting features and tools that will allow managing your multiple WordPress sites with ease.

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