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Abstract Email Validation API alternatives
Abstract Email Validation API focuses on checking whether an email address is real and can receive mail at the point a user submits it. A single call checks address format, domain MX records, live SMTP without sending a message, and disposable or catch-all status. Its structured JSON response includes deliverability, a quality score, SMTP check, and MX validation, and the product page says a full response arrives in under 300ms. It also supports bulk validation, CSV uploads on paid plans, and integrations such as HubSpot, Salesforce, and Mailchimp. A free plan includes 100 requests, while paid plans start at $17 per month billed annually.
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Accessibility Test Framework for Android
Free plan AndroidLinuxMac+1Automated accessibility checks in Android app testing — It checks accessibility on Android views, while Abstract validates email deliverability, SMTP, and MX records.
Free plan Visit site - 2
IPQualityScore Phone Validation API
Free plan AndroidAPIExtension+3Phone reputation checks and batch validation — It validates phone numbers and assesses reputation, disposable status, and subscriber or business identity rather than checking email deliverability.
Free plan · paid from $99/mo Visit site - 3
numlookupapi.com
Free plan APIWebPhone number lookups with developer SDKs — It returns phone-number details such as carrier, line type, and location, but does not identify the person or validate email.
Free plan · paid from $9.99/mo Visit site - 4
PhoneValidationAPI
Free plan APIWebPhone checks with confidence labels — It classifies phone numbers and reports confidence without sending SMS or calls, rather than checking email with live SMTP.
Free plan · paid from $14.99/mo Visit site - 5
Veriphone
Free plan APISelf-hostedWebPhone validation with CSV workflows — It validates phone numbers against national numbering plans and returns carrier, line type, and country through an API or CSV workflow.
Free plan · paid from $12.99/mo Visit site - 6
libphonenumber-js
Free plan APIWebFree JavaScript and TypeScript phone-number handling — It is a JavaScript/TypeScript library for parsing and formatting phone numbers, not a hosted email validation API.
Free plan Visit site - 7
Neutrino Phone Validate
Free plan APIPhone validation with location details — It parses phone numbers and can return location and number details, while Abstract checks email delivery signals.
Free plan · paid from $10/mo Visit site - 8
BillionVerify
Free plan APIWeb - 9
Clearout Email Verification
Free plan APIExtensionWeb - 10
Bouncer
Free plan APIWeb - 11
Byteplant Email Validator
Free plan APIWeb7.3 Visit site - 12
Cloudmersive Email Verification API
Free plan APISelf-hosted - 13
DeBounce
Free plan APIWeb - 14
EmailListVerify
Free plan APIExtensionWeb - 15
Emailable
Free plan APIWeb - 16
Email List Validation
Free plan APIWeb - 17
Email Validator
Free plan APIWeb - 18
EmailValidator
Free plan APIWeb - 19
emailverifier.dev
Free plan APIWeb - 20
MyEmailVerifier
Free plan APIExtensionWeb - 21
InboxTrue
Free plan APIWeb - 22
Mailbeam
Free plan APIWeb - 23
MailboxValidator
Free plan APIWeb - 24
MailerCheck
Free plan APIWeb - 25
Reacher
Free plan APISelf-hostedWeb - 26
ZeroBounce
Free plan AndroidAPIExtension+2 - 27
MillionVerifier
Free plan APIWeb - 28
Proofy
Free plan APIWeb - 29
QuickEmailVerification
Free plan APIWeb - 30
Reoon Email Verifier
Free plan APIWeb - 31
Trueguard Email Verification API
Free plan APIWeb
The alternatives here validate phone numbers or help developers test Android accessibility, rather than verifying email deliverability. They may suit a project better if its priority is phone reputation, carrier and line-type data, number formatting, or local phone-number parsing; the free JavaScript library may also fit teams that want number handling without a paid API. Compare whether you need live email checks and bulk CSV workflows or phone-specific data and tools, and consider each product’s platform and stated limits before switching.
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