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Design Resources VS PostalDataPI

Compare Design Resources VS PostalDataPI and see what are their differences

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

Design Resources logo Design Resources

A curated list of tools in one place to help designers

PostalDataPI logo PostalDataPI

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
  • Design Resources Landing page
    Landing page //
    2022-04-30
  • PostalDataPI Landing page
    Landing page //
    2026-04-08

PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate โ€” $0.000028 per query with no tiers or subscriptions.

What you get back: Up to 18 metadata fields per postal code โ€” city, state/region, coordinates, timezone, three levels of administrative hierarchy, elevation, and more. Sub-5ms cached responses.

Works everywhere: US ZIP codes, UK postcodes, German PLZ, Japanese postal codes, Canadian FSAs, and 230+ more. Format normalization handles case, spacing, and hyphen variations automatically.

Get started in 60 seconds: 1,000 free queries on signup, no credit card required. SDKs for Python and Node.js. MCP server for AI agents (Claude, Cursor, etc.).

Built for developers: REST API, consistent JSON responses across all countries, OpenAPI spec, llms.txt for AI agent discovery.

Design Resources features and specs

  • Comprehensive Collection
    Design Resources offers a wide range of design tools, assets, and resources, making it easy for designers to find what they need for various projects.
  • User-Friendly Interface
    The website is designed with an intuitive layout, allowing users to easily navigate through categories and find resources quickly.
  • Regular Updates
    The platform consistently updates its collection with new resources, ensuring that users have access to the latest design trends and tools.
  • High-Quality Resources
    Design Resources provides access to high-quality assets that meet professional standards, aiding designers in delivering exceptional work.
  • Community Contributions
    The site allows for community contributions, enabling designers to share their own resources and expand the collection available to others.

Possible disadvantages of Design Resources

  • Overwhelming Choices
    The extensive range of resources may be overwhelming for some users, making it difficult to decide which tools and assets to use.
  • Potential Quality Variance
    While many resources are of high quality, the user-contributed nature of the site means there may be some variance in quality among the assets.
  • Limited Free Resources
    Some high-demand resources may be behind a paywall or require a subscription, limiting access for users looking for free options.
  • Search Function Limitations
    The search functionality may not always return precise results due to the vast amount of resources, making it necessary to manually browse categories.
  • Login Requirement for Some Features
    Certain features or accesses on the site may require users to create an account and log in, which might be seen as a barrier to entry by some.

PostalDataPI features and specs

  • Specialized Postal Data
    PostalDataPI focuses specifically on postal and address-related data, providing dedicated endpoints for ZIP code lookups, address validation, and geographic postal information, making it a niche solution for mailing and logistics needs.
  • Simple API Integration
    The API appears to offer straightforward RESTful endpoints that are relatively easy to integrate into existing applications, requiring minimal setup and configuration for developers.
  • Useful for Address Validation
    The service can help businesses validate and standardize mailing addresses, reducing undeliverable mail, saving postage costs, and improving data quality in customer databases.
  • Geographic Data Enrichment
    PostalDataPI can enrich address data with additional geographic information such as coordinates, county, and timezone details associated with postal codes, which is valuable for analytics and location-based services.
  • Lightweight and Focused
    As a specialized micro-API, it avoids the bloat of larger platforms, offering a focused toolset that does one thing well โ€” handling postal and ZIP code data without unnecessary complexity.

Possible disadvantages of PostalDataPI

  • Limited Public Awareness
    PostalDataPI is not widely known or widely reviewed compared to major competitors like SmartyStreets, Google Geocoding API, or Melissa Data, making it harder to assess reliability and long-term viability.
  • Sparse Documentation and Community Support
    As a smaller or lesser-known service, it may lack comprehensive documentation, tutorials, and an active developer community, which can make troubleshooting and advanced usage more challenging.
  • Uncertain Data Coverage
    It is unclear how comprehensive the postal data coverage is โ€” whether it supports international postal codes or is limited to specific countries, which could be a significant limitation for global applications.
  • Unknown Uptime and Reliability Track Record
    Without widespread usage reports or published SLA guarantees, it can be difficult to trust the service for mission-critical applications that require high availability and consistent performance.
  • Limited Feature Set Compared to Competitors
    Larger address validation and postal data providers offer additional features like autocomplete, batch processing, CASS certification, and deliverability scoring that PostalDataPI may not provide.

Analysis of Design Resources

Overall verdict

  • Yes, Design Resources (designresourc.es) is generally considered a good resource for designers. It is well-regarded for its comprehensive and organized collection of high-quality design tools and assets.

Why this product is good

  • Design Resources (designresourc.es) is a well-known repository for free and premium design tools, assets, and resources. It offers a curated list of design tools, mockups, fonts, icons, and more, making it a valuable resource for designers looking to streamline their workflow or find inspiration. The platform is appreciated for its organization and the wide variety of resources it hosts, which can be beneficial for both beginner and experienced designers.

Recommended for

  • Graphic designers looking for diverse tools and assets
  • UI/UX designers seeking inspiration or specific design elements
  • Web designers wanting to enhance their projects with quality resources
  • Design students who need free or affordable resources for learning

Analysis of PostalDataPI

Overall verdict

  • I don't have verified, up-to-date information specifically about PostalDataPI (postaldatapi.com), including details on its accuracy, pricing, uptime, or customer reviews. I can't confirm whether it's a good product without more direct data or firsthand testing, so I'd recommend evaluating it yourself using the criteria below before committing.

Why this product is good

  • Unable to verify specific claims about data accuracy, coverage, or update frequency for this service
  • No confirmed information on pricing tiers, rate limits, or API reliability (SLA/uptime)
  • No verified user reviews, testimonials, or third-party comparisons available
  • Company background, support quality, and documentation quality are unconfirmed
  • If considering this service, check for: free trial/sandbox access, transparent pricing, data source citations, response time benchmarks, and independent reviews on sites like G2 or Trustpilot

Recommended for

  • Not able to make a specific recommendation without verified data
  • Best approach: developers needing postal/address validation APIs should compare this against established alternatives (e.g., SmartyStreets, Lob, Google Maps Geocoding API, USPS Web Tools) based on documented accuracy and pricing
  • Suitable evaluation candidates: teams willing to test the API directly with sample data before integrating into production systems

Design Resources videos

+ Add

Design Resources Review #1. Trendy tools for inspiration and workflow acceleration. December 2020

More videos:

  • Review - UX / UI Design - 6 Amazing (Free) Design Resources!

PostalDataPI videos

+ Add

PostalDataPI Now Returns 18 Fields Per Postal Code โ€” for 240+ Countries

More videos:

  • Tutorial - PostalDataPI Tutorial: Your First Postal Code API Call in 5 Minutes

Category Popularity

0-100% (relative to Design Resources and PostalDataPI)

Design Resources

PostalDataPI

Design Tools
100 100%
Design Tools
0% 0
Address Verification API
0 0%
Address Verification API
100% 100
Prototyping
100 100%
Prototyping
0% 0
Geolocation API
0 0%
Geolocation API
100% 100

User comments

Share your experience with using Design Resources and PostalDataPI. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Design Resources seems to be more popular. It has been mentiond 5 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.

Design Resources mentions (5)

PostalDataPI mentions (0)

We have not tracked any mentions of PostalDataPI yet. Tracking of PostalDataPI recommendations started around Apr 2026.

What are some alternatives?

When comparing Design Resources and PostalDataPI, you can also consider the following products

TOOOLS.design - A free and growing archive of 900+ design resources, weekly updated for the community.

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

UIHut - Build Stunning UI Faster With 26,000+ Design Resources

Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).

Indie Design Kit - Ship astronomically well-designed products that convert

Designer Daily Report - Everything about design in 5 minutes

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