ConvertKit (now Kit) is an email-first platform that automates email marketing, newsletter growth, and digital product sales for creators.
Free·from $33/mo
About BillionVerify
What is BillionVerify?
BillionVerify is an email verification platform that checks individual addresses or entire lists using syntax, domain, MX, SMTP, reputation, and risk checks. It returns clear statuses to help you remove invalid, risky, or disposable emails before sending campaigns or outreach.
How does BillionVerify work?
You can verify a single email in real-time, upload a CSV for bulk cleaning, or integrate via a REST API for real-time validation during signups or list processing. The tool provides validity distribution, result breakdowns, and export-ready segments, with live progress and email notifications for batch jobs.
Who is BillionVerify for?
Sales teams use it to keep reps focused on reachable buyers; marketing teams protect deliverability before campaigns; agencies standardize list quality for clients. It’s also useful for cold email, B2B leads, Google Maps lists, and local business outreach.
Who is it not for?
If you only need occasional verification or have a very low-volume list, the free daily tier or simpler tools might suffice.
Key features
- Email Checker — Verify any address in real time with 99.9% accuracy.
- Bulk Email Verifier — Clean thousands of emails at once with live progress and export filters.
- Email Validation API — Integrate verification into apps, signup flows, or AI workflows via REST API.
- Spam Trap Detection — Identify spam traps, disposable emails, and role accounts to protect deliverability.
- Catch-All Verification — Detect catch-all mail servers for accurate deliverability insight.
- Domain Checker — Automatically validate email domains and MX records.
- Whitelabel Service — Launch your own branded verification portal with custom domain and client controls.
SaaSpartout Score
7.3
/10
Editorial score from our review methodology — not user ratings.
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BillionVerify Pricing
BillionVerify pricing: from $20/20K credits.
For comparison: the median starting price in Marketing & SEO is $29/month, measured across 753 tools we track. See the full SaaS Pricing Index →
Free Plan
100 verifications daily at no cost. No payment info needed. Includes syntax & domain validation, disposable email detection, and SMTP verification.
Pay-as-you-go Credits
Start at $20 for 20,000 credits ($0.001 per email). Volume discounts up to 86% for high-volume plans (e.g., 10K–50K: 30–50% off; 100K–500K: 60–80% off; 1M+: custom).
Monthly Subscriptions
Flexible credits with access to real-time API, bulk validation, and detailed reports. Exact pricing varies by volume.
Enterprise
Custom pricing for 1M+ credits, includes dedicated support and whitelabel options.
All paid plans include bounce detection, spam trap identification, catch-all verification, disposable filtering, and role account detection.
Frequently asked questions
How much does BillionVerify cost?
BillionVerify starts at $20 for 20K credits (pay-as-you-go). Volume discounts apply; the free daily plan offers 100 verifications per day at no cost.
Is BillionVerify free to use?
Yes, there is a free daily tier that provides 100 verifications per day without requiring a credit card. It includes syntax and domain checks, SMTP verification, and disposable email detection.
What is BillionVerify used for?
BillionVerify is used to clean email lists before sending campaigns or outreach. It removes invalid, risky, and disposable addresses to improve deliverability and protect sender reputation.
How does BillionVerify verify email addresses?
It combines syntax, domain, MX, SMTP, reputation, and risk checks, then returns a status with details like SMTP verification, MX records, and a deliverability score.
What are the best alternatives to BillionVerify?
Common alternatives include NeverBounce, ZeroBounce, and MillionVerifier. Each offers bulk verification and API access, but pricing and accuracy vary. Compare features and costs to find the best fit.
Does BillionVerify have an API?
Yes, BillionVerify offers a real-time API that returns structured JSON, making it easy to integrate into signup flows, AI workflows, or custom list-processing pipelines.
