Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
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

Which is more popular?
Based on our record, ClickUp seems to be more popular. It has been mentioned 119 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
ZIP
ZIP Code API
|
|
|
|---|---|---|
| Website | zip-codes.com | clickup.com |
| Pricing | — | |
| Company | Startup from the United States · 2026 | Startup from the United States |
| Listed in |
In their own words, as submitted to SaaSHub.

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
No description of ClickUp yet.
What each product offers, as listed by its team.

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

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
ClickUp is recommended for project managers, teams, and organizations of all sizes, especially those in fast-paced or complex industries that require detailed project tracking and collaboration. It's also suitable for remote teams, freelancers, and anyone looking to improve their organizational skills and productivity.
Walkthroughs and reviews on video.
No ZIP Code API videos yet. You could help us improve this page by suggesting one.
ClickUp 2.0: Features, Pricing & More (2019)
More videos
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ZIP Code API and ClickUp. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

We have no reviews of ZIP Code API yet. Be the first one to post
Clientish has no live ClickUp sync, but it can import your ClickUp clients and their work. For a hands-off link between the two, have each new order trigger a Zap built on Clientish’s own Zapier integration, or a Make...
In short: The best project management tools for startups in 2026 are TechXaro One (best for small agencies), ClickUp (best free plan), Trello (cheapest paid plan), Notion (best for note-heavy teams), and Asana (best...
Simple Gantt is intentionally built around a smaller feature set, while ClickUp provides a much broader platform with many configurable capabilities. Teams that only need visual project planning may find SimpleGantt...
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Model Context Protocol, for context, is the emerging standard for letting AI agents pull live data from external systems without custom integration code. Freshworks has implemented it as a native layer in Freddy AI, which means agents... - Source: dev.to / 6 months ago
Onboarded team members to our project channel on the project management tool being utilized - ClickUp. - Source: dev.to / 8 months ago
It's meant to build apps with. If you want to build a knowledge base, sure. But why would you build a Knowledge Base when you can use Confluence, Notion, https://www.getoutline.com/, https://clickup.com/, etc that already exist? There's... - Source: Hacker News / 11 months ago
When comparing ZIP Code API and ClickUp, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Compare Smarty to ZIP Code API or ClickUp:

Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Compare Asana to ZIP Code API or ClickUp:

Free Zip Code API - Free Postal Code Validation | Zipcodestack
Compare Zipcodestack to ZIP Code API or ClickUp:

The most intuitive platform to manage projects and teamwork
Compare monday.com to ZIP Code API or ClickUp:

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to ZIP Code API or ClickUp:

A simple and elegant project management system.
Compare Basecamp to ZIP Code API or ClickUp: