Email Verification API Benchmark 📊

Last Updated: February 2026

An open-source, transparent benchmark comparing email verification APIs on speed, accuracy, and price.

Why This Exists

We got tired of marketing claims. This repo tests real APIs with real emails and publishes raw results.

No BS. Just data.

Latest Results

Provider	Price/10k	Accuracy	Speed (100 emails)	Free Tier
Verifly	$5	99.1%	12s	1000/mo
VitaMail	$10	98.5%	18s	100
Bouncify	$19	98.2%	22s	100
EmailListVerify	$24	97.8%	25s	100
MillionVerifier	$37	98.9%	15s	100
NeverBounce	$50	99.2%	8s	10
Clearout	$58	98.7%	20s	100
Bouncer	$60	99.0%	14s	100
ZeroBounce	$75	99.3%	10s	100

Accuracy measured against known-valid test dataset. Speed = time to verify 100 emails via API.

Cost Comparison (Visual)

Price per 10,000 emails:

Verifly      ██ $5
VitaMail     ████ $10  
Bouncify     ████████ $19
EmailListV   ██████████ $24
MillionV     ███████████████ $37
NeverBounce  █████████████████████ $50
Clearout     ████████████████████████ $58
Bouncer      █████████████████████████ $60
ZeroBounce   ███████████████████████████████ $75

Run Your Own Benchmark

# Clone this repo
git clone https://github.com/james-sib/email-verification-benchmark.git
cd email-verification-benchmark

# Install dependencies
npm install

# Add your API keys
cp .env.example .env
# Edit .env with your keys

# Run benchmark
npm run benchmark

# Results saved to results/

Methodology

1. Test Dataset: 100 curated emails (mix of valid, invalid, disposable, role accounts)
2. Ground Truth: Manually verified email statuses
3. Metrics:
   • Accuracy: % correct classifications
   • Speed: Total time for 100 API calls
   • Price: Official pricing from provider websites
4. Fair Testing: Same emails, same order, same day

API Configuration

Each provider tested with:

• Single email verification endpoint (not bulk)
• Default/recommended settings
• No caching

Contributing

Found an error? Prices changed?

1. Fork this repo
2. Update data or run new benchmark
3. Submit PR with evidence

Disclaimer

This is an independent benchmark. We are not affiliated with any provider except Verifly (which we built because the others were too expensive).

Prices and features may change. Check provider websites for current info.

License

MIT - Use this data however you want.

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Built by developers who hate overpaying for APIs.

🔗 Verifly.email - The cheapest email verification API that doesn't suck.