Abstract Email Validation API vs Clearout Email Verification
Abstract Email Validation API
abstractapi.com
Clearout Email Verification
clearout.ioSide by side
| Figure | Abstract Email Validation API | Clearout Email Verification |
|---|---|---|
| Price from | $17/mo | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 4 |
| Spec score · Email Verification APIs | 7.8 (#13) | 8.1 (#6) |
| Integrations | The maker lists integrations including HubSpot, AWS, Salesforce, Zapier, Snowflake, Shopify, Make, Mailchimp, and Azure. | The integrations directory lists connections including HubSpot, Apollo, Kit, Mailchimp, ActiveCampaign, Zapier, Make, Google Sheets, and WordPress forms. |
| Purpose | The API checks whether an email address is real and can receive mail when a user submits it. | Clearout checks email addresses to help reduce bounces and maintain clean email lists. |
| Support | The product page says questions are usually answered by a real person within a few hours via email or [email protected]. | Clearout advertises 24/7 support with experts on its pricing page. |
| Validation checks | One call checks address format, domain MX records, live SMTP without sending a message, and disposable or catch-all addresses. | Clearout says it performs more than 20 validation checks, including syntax, catch-all, disposable address, role-based address, MX record, and SMTP checks. |
Plans
Abstract Email Validation API
- Starter$17 a month
- Standard$37 a month
- Professional$39 a month
- EnterprisePriced on request
- FreePrice not published
Clearout Email Verification
- Annual subscriptionPrice not published
- Custom / enterprisePriced on request
- Monthly subscriptionPrice not published
- Pay-as-you-goPrice not published
In their own words
Abstract Email Validation API
Abstract Email Validation API checks whether submitted email addresses are correctly formed and can receive mail. One call checks address format, domain MX records, live SMTP without sending a message, and disposable or catch-all addresses. Responses arrive as structured JSON with deliverability, a quality score, SMTP status, and MX validation. The API supports signup form cleanup, B2B lead verification, and efforts to reduce bounce rates without tying a developer to one email provider. The product page says real-time validation responses arrive in under 300ms, and the API also supports bulk checks. CSV upload is included with listed paid plans. The Free plan includes 100 requests at three requests per second. Starter is $17 a month, billed annually, with 60,000 requests per year, three requests per second, domain whitelisting, and bulk CSV upload. The listed integrations include HubSpot, AWS, Salesforce, Zapier, Snowflake, Shopify, Make, Mailchimp, and Azure. The product page lists a 99.99% uptime SLA and describes privacy protections and compliance resources.
Clearout Email Verification
Clearout Email Verification has no write-up on Specifiction yet; its figures are above.