NumValidate
Data Validation
Open Source phone number validation
Syntax + MX + disposable/role-based email validation
Verified 4 days ago: 100% uptime
API key
Required
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Live · 100/100
Last checked 2026-09-18. Measured independently, not self-reported by the provider.
A starting template for SpryTools Email Validation. 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://sprytools.com/ENDPOINT" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Accept: application/json"Aggregated from one public source (public-api-lists), then normalised and checked by us. If something here is wrong, tell us and we will correct it.
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Answered from what our own scheduled checks found, not from the provider's marketing.
SpryTools Email Validation 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.
Yes. SpryTools Email Validation 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.
Yes. SpryTools Email Validation 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.
Yes, as of 2026-09-18. Our automated check reached SpryTools Email Validation and recorded a 100% reliability score with a median response time of 600 ms. We re-check on a schedule, and this page updates with the result.
Yes. SpryTools Email Validation serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.