Abstract Email Validation API

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Abstract Email Validation API is ranked #3 of 26 in phone number validation software on Inferse. It runs on API, Web. Paid plans start at $17/mo.

Compared on phone number validation software

Free plan: Yesabstractapi.com
Paid from: $17/moabstractapi.com
Real-time API: Yesabstractapi.com
Batch verification: Yesabstractapi.com
Disposable detection: Yesabstractapi.com
Role account detection: Yesabstractapi.com
Catch-all detection: Yesabstractapi.com
SMTP mailbox check: Yesabstractapi.com

Facts

Purpose: The API checks whether an email address is real and can receive mail when a user submits it.abstractapi.com · 28 Sept 2026
Validation checks: One call checks address format, domain MX records, live SMTP without sending a message, and disposable or catch-all addresses.abstractapi.com · 28 Sept 2026
Signup and lead use: Abstract says developers use the API to reduce bounce rates, clean signup forms, and verify B2B leads without being locked to an email provider.abstractapi.com · 28 Sept 2026
Response: The API returns structured JSON with deliverability, quality score, SMTP check, and MX validation.abstractapi.com · 28 Sept 2026
Speed: The product page says a full validation response for real-time signup flows is returned in under 300ms.abstractapi.com · 28 Sept 2026
Bulk validation: The API supports bulk email validation and CSV upload is included on paid plans listed on the page.abstractapi.com · 28 Sept 2026
Integrations: The maker lists integrations including HubSpot, AWS, Salesforce, Zapier, Snowflake, Shopify, Make, Mailchimp, and Azure.abstractapi.com · 28 Sept 2026
Privacy and compliance: The product page describes the service as GDPR and CCPA privacy friendly and states SOC 2 Type II and GDPR readiness.abstractapi.com · 28 Sept 2026
Uptime: The product page lists a 99.99% uptime SLA.abstractapi.com · 28 Sept 2026
Support: The product page says questions are usually answered by a real person within a few hours via email or [email protected].abstractapi.com · 28 Sept 2026
Rate limit: The Free plan includes 100 requests and allows 3 requests per second.abstractapi.com · 28 Sept 2026
Audience: Abstract says its products serve teams in over 100 countries, from startups and side projects to public companies and critical infrastructure.abstractapi.com · 28 Sept 2026