
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.

Apache Karaf
GlusterFS
rkt
REX-Ray
Apache Edgent
IBM App Connect
Sheepdog
Apache ServiceMix is an open source ESB that combines the functionality of a Service Oriented Architecture and the modularity.

Which is more popular?
Based on our record, Apache ServiceMix seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | isvalid.dev | servicemix.apache.org |
| 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 Apache ServiceMix 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
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing IsValid.dev and Apache ServiceMix.
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 Apache ServiceMix. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking IsValid.dev since Apr 2026.
It wasn't "great" mind you but it was "different" to what I was used too (https://servicemix.apache.org/) one interesting thing with this is that it's a monolith approach but each service was constructed as a loadable package. Source: over 3 years ago
When comparing IsValid.dev and Apache ServiceMix, you can also consider the following products.

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

Apache Karaf is a lightweight, modern and polymorphic container powered by OSGi.
Compare Apache Karaf to IsValid.dev or Apache ServiceMix:

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

GlusterFS is a scale-out network-attached storage file system.
Compare GlusterFS to IsValid.dev or Apache ServiceMix:

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 Apache ServiceMix:
