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PostalDataPI VS Glasp

Compare PostalDataPI VS Glasp and see what are their differences

PostalDataPI

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

Rating
0 reviews
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Alternatives Is it good?
Glasp

Social web highlighter

Rating
0 reviews
Pricing
Freemium Free trial $15 / Monthly
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Alternatives Is it good?
AgentClara
AgentClara is a UK AI receptionist that answers calls, books clients, and handles follow-ups 24/7 for service businesses and agencies. Free AI agents for website chat, SMS, social media and email included. Set up online with a free number in minutes sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Glasp seems to be more popular. It has been mentioned 9 times since March 2021.

social mentions
0 vs 9
Postcode API popularity
100% vs 0%
alternatives listed
12 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

PostalDataPI
Glasp
Website postaldatapi.com glasp.co
Pricing
Official pricing
Freemium Free trial $15 / Monthly Official pricing
Platforms —
Web Windows Google Chrome Safari Edge Opera Vivaldi +4
Company Startup from the United States · 1 - 9 employees · 2026 Startup from the United States · 1 - 9 employees · 2021
Listed in
APIs REST API Postal Management Zip Lookup Postcode API Geocoding Address Verification API Geolocation API Developer Tools +6
Productivity Social Media Tools Project Management Task Management Online Learning Learning Tools +3

About PostalDataPI and Glasp

In their own words, as submitted to SaaSHub.

PostalDataPI
Glasp

PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate — $0.000028 per query with no tiers or subscriptions. What you get back: Up to 18 metadata fields per postal code — city, state/region, coordinates,...

Read more about PostalDataPI

Highlight the web and share the gist with peers. Learn from like-minded people. Glasp is an easier and faster way to highlight text and leave notes on the web. With one click, the content you’ve collected appears across all your devices. 📚 Glasp beautifully organizes your collection of...

Read more about Glasp

Features and specs

What each product offers, as listed by its team.

PostalDataPI 5 features
Glasp 8 features
  • 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 — handling postal and ZIP code data without unnecessary complexity.

Possible disadvantages

  • 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 — 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.
  • Highlight web articles
  • Kindle's notes & highlights import
  • Highlight YouTube transcripts
  • Highlight PDFs
  • Export highlights & notes
  • Find top highlights of articles
  • See other people's highlights & notes
  • Showcase reading list

Analysis

An editorial look at what each product does well and who it suits.

PostalDataPI
Glasp

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

No analysis of Glasp yet.

Videos

Walkthroughs and reviews on video.

PostalDataPI 2 videos + Add
Glasp 5 videos + Add

PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries

More videos

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

Glasp - Tutorial Video

More videos

  • - Glasp User Profile Page
  • - How to use Glasp browser extension (Chrome Extension)
  • - Create and take a note on the Atomic Note
  • - Highlight Web Pages with Glasp

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
PostalDataPI
Glasp
100% 100%
Postcode API
0% 0%
0% 0%
Productivity
100% 100%
100% 100%
Address Verification API
0% 0%
0% 0%
Bookmark Manager
100% 100%

User comments

Share your experience with using PostalDataPI and Glasp. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

PostalDataPI no reviews yet
Glasp no reviews yet

We have no reviews of PostalDataPI yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

PostalDataPI 0 mentions
Glasp 9 mentions

Tracking PostalDataPI since Apr 2026.

  • Improve your learning with Glasp: A Comprehensive Guide.
    To sign up, visit the Glasp website and click the Sign-up button in the top right corner, or log in if you already have an account. - Source: dev.to / over 2 years ago
  • Unlock Your Full Learning Potential with Glasp: The Ultimate Study Tool
    You can install the Glasp browser extension to your web browser from its website or as an app on Play Store. - Source: dev.to / over 2 years ago
  • Daily Thread / June 29
    For no reason at all, if you wanted to read the transcript of their dumb podcast without giving them views or listens, you can use the Glasp extension on chrome or safari to give you a summary instead of sitting through the video. Source: over 3 years ago

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Alternatives to PostalDataPI and Glasp

When comparing PostalDataPI and Glasp, you can also consider the following products.

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