Email Validator by LifeStep
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
Validate email addresses.
EVA 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.

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Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
Yes. The EVA 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.
No. The EVA API requires no authentication, so you can start making requests without signing up.
Yes. The EVA API supports CORS, so front-end JavaScript can call it directly.
Yes. The EVA API is served over HTTPS, so it's safe to use in production.