
Numverify
Veriphone
NumValidate
RealPhoneValidation
Bulk Phone Normalizer
CSV Cleaner
CleanCSV AI
Our phone number lookup & validation API is the perfect tool to automate fraud protection & clean your database.

Mailflow.sh
Stackmail is a webmail service whereby you can log in to your emails from any browser at any time!

Which is more popular?
Based on our record, Numlookupapi.com seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | numlookupapi.com | stackmail.com |
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Recommendations tracked on public social media and blogs since March 2021.


Numlookupapi.com - Free phone number validation API - 100k free requests / month. - Source: dev.to / almost 4 years ago
In our main.js, we read the data from the input and send it to the number validation API. For this, we need an API key. In this tutorial, we use numlookupapi.com (they offer a free plan). The main.js could look something like this:. - Source: dev.to / over 4 years ago
Tracking StackMail since Aug 2023.
When comparing Numlookupapi.com and StackMail, you can also consider the following products.

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A self-hosted, unified webmail client. Connect multiple IMAP/SMTP accounts and manage them all in one clean interface.
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Phone number validation & carrier lookup
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Phone number validation REST API. Simple, Free, and Open Source.
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Realtime API and Batch Phone Validation
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Clean messy CSV phone columns before CRM, dialer, or API import. Convert safe rows to E.164, preserve the rest of your data, and split risky numbers into a needs-review file in your browser.
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