The complete Email Validation API toolkit
Syntax validation, MX/SMTP verification, disposable detection, risk scoring, SPF/DKIM/DMARC checks, and provider identification.
curl -G "https://email.toolkitapi.io/v1/email/validate" \
-H "X-API-Key: YOUR_KEY" \
--data-urlencode "[email protected]"
import httpx
resp = httpx.get(
"https://email.toolkitapi.io/v1/email/validate",
headers={"X-API-Key": "YOUR_KEY"},
params={"email": "[email protected]"},
)
data = resp.json()
print(f"Valid: {data['is_valid']}, Deliverable: {data['is_deliverable']}")
const resp = await fetch(
"https://email.toolkitapi.io/v1/email/[email protected]",
{
headers: { "X-API-Key": "YOUR_KEY" },
}
);
const data = await resp.json();
console.log(`Valid: ${data.is_valid}, Deliverable: ${data.is_deliverable}`);
Browse by Category
Everything you need for email validation, intelligence, and deliverability.
Validation
3 toolsSyntax, MX, SMTP, disposable, role-based, and catch-all detection.
Intelligence
3 toolsProvider identification, Gravatar lookup, and domain reputation.
Deliverability
3 toolsSPF, DKIM, DMARC validation and inbox placement prediction.
Authentication
2 toolsEmail security audits and header-based authentication validation.
Built for Developers
Designed to simplify your workflow, not complicate it.
Deep Validation
Syntax, MX, SMTP handshake, disposable, role-based, and catch-all — all in one call.
Disposable Detection
Block 50,000+ disposable email domains. Updated weekly from community lists.
Risk Scoring
Every address gets a 0-100 deliverability score based on 12 signals.
Privacy-First
No email addresses are stored or logged. Stateless processing only.
Start validating emails in minutes
One API key. 13 endpoints. SMTP verification, spam scoring, header forensics, and more.
Get an API Key →