
Abstract APIs
Numverify
GlobalEntity API
mailboxlayer API
IBAN.com
VAT-calc.net
Melissa Data Quality
A powerful REST API for validating emails, IBANs, BIC/SWIFT codes, LEI, ISIN, credit cards, VAT numbers, phone numbers, and 70+ more validators. Free tier available.

Otter.ai
Descript
Sonix.ai
TurboScribe
Notta.ai
Rev.com
Trint
Happy Scribe automatically transcribes your interviews

Which is more popular?
Based on our record, HappyScribe seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | isvalid.dev | happyscribe.com |
| Pricing | ||
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


IsValid is a validation API service for developers who need to quickly verify data formats without building their own validators. It offers 40+ endpoints covering financial identifiers (IBAN, BIC, ISIN, CUSIP), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes),...
No description of HappyScribe yet.
What each product offers, as listed by its team.


Possible disadvantages
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 IsValid.dev videos yet. You could help us improve this page by suggesting one.
money
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing IsValid.dev and HappyScribe.
IsValid.dev's answer
IsValid offers 70+ validators in a single API — covering financial identifiers (IBAN, BIC, ISIN, LEI), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), tax numbers (VAT, REGON, PESEL), credit cards, phone numbers, and more. No need to integrate multiple services for different data types.
IsValid.dev's answer
Most validation APIs focus on one category (email or phone). IsValid covers financial, regional, and technical formats all in one place with a consistent REST API. The free tier with 100 calls/day requires no credit card, and integration takes minutes.
IsValid.dev's answer
Developers and software teams building applications that handle user input, financial data, or international identifiers — particularly in fintech, e-commerce, and SaaS products.
IsValid.dev's answer
IsValid was built out of frustration with piecing together multiple validation libraries and services. The goal was a single, reliable API that handles the full range of data validation needs developers encounter in real-world applications.
IsValid.dev's answer
Next.js, Fastify, PostgreSQL, Docker
Share your experience with using IsValid.dev and HappyScribe. 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 IsValid.dev yet. Be the first one to post
Frequently Asked Questions Does HappyScribe have a free plan?HappyScribe offers a 10-minute free trial rather than an ongoing free tier. TranscriptAny's transcript feature is free and unlimited on an ongoing basis....
If you're looking for a free transcription editor, then Happyscribe is a suitable option for you. They also offer an automatic transcription tool, but only the first 10 minutes of your recordings are free. Happyscribe...
While HappyScribe is a valuable tool for those seeking an affordable transcription service with basic editing features, its accuracy rate may be a concern for users with stringent accuracy requirements.
Recommendations tracked on public social media and blogs since March 2021.


Tracking IsValid.dev since Apr 2026.
Happyscribe.com is quite nice for that, with automated voice recognition and a WYSIWYG interface for subtitling (though I've never used it with Russian). Source: almost 4 years ago
I have just found happyscribe.com. I am trying it and it translated quite good. I have to change perhaps 10% of the words. Source: almost 4 years ago
This is more of a question than an answer, but has anyone used an online audio transcription site to create an English transcription directly from a Spanish language audio podcast MP3 file? I was just looking into this this morning, and... Source: over 4 years ago
When comparing IsValid.dev and HappyScribe, you can also consider the following products.

Simple, powerful APIs for everyday dev tasks
Compare Abstract APIs to IsValid.dev or HappyScribe:

Your AI meeting assistant that takes live notes and generates summaries and other insights using Meeting GenAI.
Compare Otter.ai to IsValid.dev or HappyScribe:

Global phone number validation and lookup API
Compare Numverify to IsValid.dev or HappyScribe:

Text-based audio editor and automated transcription
Compare Descript to IsValid.dev or HappyScribe:

Official company data from 50+ European business registers plus GLEIF LEI — one REST API for KYB, compliance and firmographic enrichment
Compare GlobalEntity API to IsValid.dev or HappyScribe:

Automatically convert audio & video to text in minutes
Compare Sonix.ai to IsValid.dev or HappyScribe: