VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

vatlayer API
VatStack
Taxid.dev
Justaxit
Vatcheckapi.com
VATnode.dev
Lookuptax
Instant EU VAT number validation for seamless compliance and automation.
Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
EJS
Eloquent JavaScript
|
|
|
|---|---|---|
| Website | eloquentjavascript.net | thevatapi.com |
| Pricing | ||
| Company | — | Startup from the United Kingdom · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Eloquent JavaScript yet.
The VAT API is a fast and reliable solution for validating EU VAT numbers via a simple, developer-friendly API. Designed for businesses, SaaS platforms, and eCommerce sites operating across Europe, it automates VAT ID verification in real time—helping you stay compliant, reduce fraud, 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.
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
More videos
No The VAT API videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Eloquent JavaScript and The VAT API.
The VAT API's answer:
Built on AWS (Amazon EC2/API Gateway), with Postman collection for docs, JSON/REST API architecture pulling VAT data from VIES and HMRC endpoints
The VAT API's answer:
businesses all over the world
The VAT API's answer:
Digital businesses, SaaS and e-commerce platforms needing accurate, real-time VAT rate lookup, VAT number validation, and compliant invoice generation across EU & UK.
The VAT API's answer:
Launched in late 2014 for new EU VAT rules (TBE services). Version 2 released in April 2019 with rewritten core, better docs, infrastructure, pricing, and future-proofing (Brexit, EU changes)
The VAT API's answer:
A UK-based, Amazon‑hosted service with real-time VAT rates, cross-border validation (EU/UK), compliant invoicing features, IP-based geolocation, currency conversion, audit-ready logs, and developer-friendly docs.
The VAT API's answer:
Offers mature, stable service since 2015, scalable AWS infrastructure, direct integration with official EU Commission and HMRC tools, and built-in VAT-compliant invoicing.
Share your experience with using Eloquent JavaScript and The VAT API. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / about 1 year ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
Tracking The VAT API since Jun 2025.
When comparing Eloquent JavaScript and The VAT API, you can also consider the following products.

Build and debug modern web and cloud applications, by Microsoft
Compare VS Code to Eloquent JavaScript or The VAT API:

Free VAT Validation & EU VAT Rates API
Compare vatlayer API to Eloquent JavaScript or The VAT API:

A front end web development playground.
Compare CodePen to Eloquent JavaScript or The VAT API:

Simplify VAT & GST for your digital business.
Compare VatStack to Eloquent JavaScript or The VAT API:

Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Compare GitHub to Eloquent JavaScript or The VAT API:

TaxID is a developer-first API to validate VAT and tax IDs across 31 countries — 27 EU member states via VIES, plus UK, Switzerland, Norway, and Australia. Stripe-style errors, JSON responses, 100 free validations/month.
Compare Taxid.dev to Eloquent JavaScript or The VAT API: