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

Weavy
KREA
n8n.io
CloudGPU.app
ComfyUI
ComputeUnion
Dify.AI
Build AI agents and workflows locally. The open-source alternative that combines ComfyUI's generative controls with n8n's automation.

Which is more popular?
Website, pricing, platforms and company facts side by side.
|
ZIP
ZIP Code API
|
|
|
|---|---|---|
| Website | zip-codes.com | nodetool.ai |
| Pricing | — | |
| Company | Startup from the United States · 2026 | Startup from Germany · 1 - 9 employees |
| 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...
NodeTool is an open‑source, visual AI workflow builder that lets you connect nodes for text, images, audio, video, data, and automation—then run them locally or on the cloud. Build multi‑step agents, RAG systems, and creative media pipelines without coding, inspect execution in real time, and...
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
Walkthroughs and reviews on video.
No ZIP Code API videos yet. You could help us improve this page by suggesting one.
Cassandra nodetool command to see how much data lives in each node
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 NodeTool. For example, how are they different and which one is better?
When comparing ZIP Code API and NodeTool, 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 NodeTool:

The complete white-label framework for in-app team messaging and collaboration.
Compare Weavy to ZIP Code API or NodeTool:

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

Explore millions of AI generated images and create collections of prompts. Featuring Stable Diffusion generations.
Compare KREA to ZIP Code API or NodeTool:

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

Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.
Compare n8n.io to ZIP Code API or NodeTool: