Free APICommsAPI keyOfficial
AbstractAPI Email Validation
Real-time email validation with MX, SMTP, disposable and catch-all checks, no card
AbstractAPI's Email Validation API checks an address for syntax, MX records, and SMTP deliverability, and flags disposable, role-based, free, and catch-all addresses, returning a deliverability verdict and quality score. The free tier gives 100 requests per month with no credit card required.
Free tier
Free: 100 requests/month, no credit card (free tier is for non-commercial / testing use)Rate limits
Free tier throttled to ~1 request/second; quota is 100 lookups/monthAuth
API keyBase URL
https://emailvalidation.abstractapi.com/v1What you'd build with it
- Validate emails at signup to block typos, disposable, and undeliverable addresses
- Score lead-list quality before sending campaigns
- Gate an AI agent's outbound email on a deliverability check
- Detect disposable/temporary addresses to reduce fraud
Key endpoints
- GET
/?api_key={key}&email={email}Validate one email address (api_key + email query params)
Members
Members get the runnable recipe
Sign in free to copy the example request, see a sample response, and read the gotchas.
Tags
emailvalidationverificationenrichmentfraud