Data Quality
Email Validation API
Validate email addresses with format, DNS, MX, role account, typo suggestion, and disposable email checks.
Freemium on RapidAPITry the free validator
Best use cases
Reduce fake or mistyped emails before they hit your CRM
Validate signup addresses before sending onboarding emails
Clean marketing or sales lists before outbound campaigns
API endpoints
POST
/api/validateValidate a single email address.
POST
/api/validate/batchValidate a batch of email addresses.
GET
/api/healthCheck service health.
Why teams pick this API
Combines syntax, DNS, MX, role account, disposable, and typo checks
Designed for signup forms, lead capture, enrichment, and CRM cleanup
Includes batch validation for list hygiene workflows
Need to ship this workflow without building the plumbing yourself?
Start with the hosted API on RapidAPI, validate demand, then route heavier usage into your own product once you know the workflow is worth scaling.