NumValidate
Data Validation
Open Source phone number validation
No keyHTTPS
VerifNow
Validates email, phone, IBAN, EU VAT against VIES, and Canadian, Spanish and US national IDs
Verified today: 100% uptime
API key
Required
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Live · 100/100
What our checks found
- Health score
- 100/100
- Reliability
- 100%
- Average latency
- 1432ms
Last checked 2026-09-27. Measured independently, not self-reported by the provider.
How to call it
A starting template for VerifNow. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# Requires an API key. Check the docs for whether it goes in a header or a query parameter.
curl -s "https://docs.verifnow.io/ENDPOINT" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Accept: application/json"Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us.
Report an issue with this listing ↗Other Data Validation APIs
See all 23 →Postman Echo
Data Validation
Test api server to receive and return value from HTTP method
No keyHTTPS
PurgoMalum
Data Validation
PurgoMalum is a free RESTful web service that filters and removes profanity and unwanted text from input. It supports customization options and can return the results in plain text, XML, or JSON formats.
No keyHTTPS
DataScreenIQ
Data Validation
Screen data for schema drift, type mismatches, and null rate anomalies
API keyCORSHTTPS
RevAddress
Data Validation
US address standardization, congressional and state legislative districts, Census data; free tier
API keyCORSHTTPS
SpryTools Email Validation
Data Validation
Syntax + MX + disposable/role-based email validation
API keyCORSHTTPS
VerifNow — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is VerifNow free to use?
VerifNow is listed in our free catalogue, but it requires an API key, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.
Does VerifNow need an API key?
Yes. VerifNow authenticates with an API key. Keep it server-side rather than in browser code, because anything in your frontend bundle is readable by anyone who opens developer tools.
Can I call VerifNow from browser JavaScript?
Yes. VerifNow returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.
Is VerifNow still working?
Yes, as of 2026-09-27. Our automated check reached VerifNow and recorded a 100% reliability score with a median response time of 1432 ms. We re-check on a schedule, and this page updates with the result.
Is VerifNow available over HTTPS?
Yes. VerifNow serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.