Email Validation API
Real-time email verification with transparent risk scoring. Syntax, domain, MX, and SMTP checks — no black boxes.
🚀 Unlock ParheliaWeb with a single API key. Your free key gives you access to Email Validation, Funding, Layoffs, Fines, Acquisitions, and IPOs. Each API has its own quota, and you can upgrade only the API you need without changing your code.
Free
- ✅ 100 checks/month
- ✅ Syntax validation
- ✅ Domain blacklist check
- ✅ Dynamic pattern detection
- ✅ MX record lookup
- ✅ Real SMTP checks (5s timeout)
- ✅ Confidence scoring
- ✅ Deliverability scoring, role-based detection, and domain-reputation protection
Starter
- ✅ 5,000 checks/month
- ✅ Everything in Free
- ✅ Full SMTP verification (10s timeout)
- ✅ Priority modes (speed / balanced / accuracy)
- ✅ Risk scoring & factors
- ✅ Batch validation (up to 100)
- ✅ Chinese language support (lang=zh parameter)
- ✅ Email support
- ✅ Deliverability scoring, role-based detection, and domain-reputation protection
Pro
- ✅ 25,000 checks/month
- ✅ Everything in Starter
- ✅ Full SMTP verification (10s timeout)
- ✅ Priority modes (speed / balanced / accuracy)
- ✅ Catch-all detection
- ✅ Batch validation (up to 500)
- ✅ Chinese language support (lang=zh parameter)
- ✅ "First seen" tracking
- ✅ Per-phase performance timing
- ✅ Priority email support
- ✅ Deliverability scoring, role-based detection, and domain-reputation protection
Business
- ✅ 100,000 checks/month
- ✅ Everything in Pro
- ✅ Full SMTP verification (10s timeout)
- ✅ Priority modes (speed / balanced / accuracy)
- ✅ Batch validation (up to 2,500)
- ✅ Chinese language support (lang=zh parameter)
- ✅ Up to 3 concurrent API keys for parallel environments
- ✅ Full verification suite + Custom SLAs
- ✅ Dedicated support
- ✅ Deliverability scoring, role-based detection, and domain-reputation protection
Prices exclude VAT. Dutch customers: 21% BTW added at checkout. EU business customers: reverse charge applies with a valid VAT ID.
🚀 How our free tier works: Sign up for free (no credit card needed!) → instantly get your universal API key → start querying all 6 APIs right away. When you're ready to scale, simply upgrade the specific API you need. You keep the exact same key and the exact same code—just with higher quotas and zero migration headaches!
💡 Why 100 queries/month? Because Email Validation performs live SMTP handshakes, there is a per-check infrastructure cost. We align our free quotas to give you plenty of room to test and build your integration without hitting a paywall, while keeping the service sustainable.
Frequently Asked Questions
What checks does the Email Validation API perform?
The Email Validation API performs syntax validation, domain blacklist checks, dynamic pattern detection, MX record lookup, real SMTP mailbox probing, confidence scoring, deliverability scoring, and role-based address detection. All SMTP handshakes originate from ParheliaWeb infrastructure, so your server IP is never exposed.
Is there a free tier?
Yes. The free tier provides 100 email validations per month, no credit card required. It uses the exact same verification engine as paid plans, including real SMTP checks, deliverability scoring, and domain reputation protection.
How much does the Email Validation API cost?
Starter is €31/month (regular €39, 5,000 checks), Pro is €63/month (regular €79, 25,000 checks), and Business is €143/month (regular €179, 100,000 checks). All paid plans include a 20% launch discount. A free tier with 100 checks/month is available on every plan.
Why is the free tier limited to 100 checks per month?
Because email validation performs live SMTP handshakes, there is a per-check infrastructure cost. The free quota is aligned to give you plenty of room to test and build your integration without hitting a paywall, while keeping the service sustainable.
What is Domain Reputation Protection?
Unlike self-hosted SMTP validation scripts, ParheliaWeb acts as the sole proxy for all SMTP handshakes. Your corporate IP is never exposed to target mail servers, completely eliminating the risk of domain blacklisting from probing invalid emails.
📄 Email Validation API documentation
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