Security — entry 008 of 30
EmailRep
EmailRep, now operated under Sublime Security, scores an email address's reputation by combining signals like domain age, deliverability, breach exposure, and known malicious activity into a single risk profile. Where the API was once fully keyless, it now requires an API key obtained through Sublime's developer signup and returns its verdict as JSON over a simple REST endpoint. It's commonly wired into signup forms and fraud pipelines to flag disposable, newly created, or breach-tainted addresses before they cause damage.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score75
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/emailrep/"><img src="https://greatapis.com/badge/emailrep.svg" alt="Scored 75 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.