Home › Free-tier APIs › uchecker
uchecker
Bulk email verification with full SMTP server responses
| Category | |
|---|---|
| Auth | apiKey |
| HTTPS | Yes |
| CORS | Unknown |
| Link checked | HTTP 200 on 2026-10-17 |
Source: public-apis/public-apis · Licence: MIT. Listed in Free-tier APIs. We list tools; we do not test, rate or endorse them.
Is this your tool? Update the description or add details for free via Submit / claim. Want it at the top of Free-tier APIs? See Get listed / Advertise (paid placements are labelled Sponsored).
Related
Best Temp Mail
Disposable inboxes for automated email testing, with OTP extraction
Cloudmersive Validate
Validate email addresses, phone numbers, VAT numbers and domain names
Disban
Classify email domains as disposable, free, alias, testing or parked to block fake signups
Disify
Validate and detect disposable and temporary email addresses
DropMail
GraphQL API for creating and managing ephemeral e-mail inboxes
Email Spam Tester
Send a test message and get a spam score, 41 checks with RFC citations and a fix plan
Email Validation
Validate email addresses for deliverability and spam
Email Validator by LifeStep
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes