Email
mailfloss
Stop spam signups: block disposable and invalid emails and suggest typo fixes. 500 free a month
apiKeyHTTPSCORS
Email
Check email domains in bulk for disposable providers and dead domains, no key needed.
Vetto API is a free Email API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
- Authentication
- None required
- HTTPS
- Yes
- CORS
- Yes
- Category
- Uptime (30 days)
- 100%
Visit documentation ↗usevetto.com
Online · 1170 msTested Nov 15, 2026 · checked dailyIs it down? Status & uptime
About Vetto
Reference for the Vetto API: the script tag, POST /v1/check (disposable, dead-domain, typo, alias checks), /v1/verify, signals, errors and limits.
- Provider
- Vetto
- Website
- usevetto.com ↗
Details from usevetto.com.
Key facts
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
Validate emails before they bounce
mailboxlayer checks syntax, MX records and SMTP, and flags disposable addresses, with a free plan to start.
Try mailboxlayer free→Free tier on every API
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Vetto API FAQ
Who provides the Vetto API?
The Vetto API is provided by Vetto (usevetto.com). Reference for the Vetto API: the script tag, POST /v1/check (disposable, dead-domain, typo, alias checks), /v1/verify, signals, errors and limits.
Is the Vetto API free?
Yes. The Vetto API is listed in the Email category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Does the Vetto API require an API key?
No. The Vetto API requires no authentication, so you can start making requests without signing up.
Can I call the Vetto API from the browser?
Yes. The Vetto API supports CORS, so front-end JavaScript can call it directly.
Does the Vetto API support HTTPS?
Yes. The Vetto API is served over HTTPS, so it's safe to use in production.
Maintain the Vetto API? Add a badge
Show that Vetto is listed on Public APIs. The badge displays its developer rating once it has one.
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