Free email verifier &
email bounce checker API.

eBounce verifies email addresses in real time — syntax, MX records, disposable domains and role-based detection. 10,000 free email validations every month, 100x the industry standard. No credit card required.

✓ 10,000 free / month✓ No credit card✓ REST API✓ Bulk verification
curl "https://ebounce.custmax.com/api/check?email=test@example.com" \
  -H "X-API-Key: ebk_your_key"
Get 10,000 free validations See pricing

Why teams switch to eBounce

The same core checks. A fraction of the price.

ZeroBounceMillionVerifierNeverBounceBouncereBounce
Free plan100 / month100 one-time10 one-time100 one-time10,000 / month
Entry paid$39 / 2,000$39 / 10,000$8 / 1,000$8 / 1,000$4 / 5,000 / mo
100k validations~$700$149~$400$400$79 / mo
Cost per 1k (paid)$19.50$3.90$8.00$8.00$0.79 – $1.80

⚡ Real-time API

Single checks in milliseconds, batch endpoint for up to 500 emails per call.

🧹 Core hygiene checks

Syntax, MX records, disposable domains, and role-based address detection.

📊 Honest quotas

Monthly quotas that reset. No expiring-credit traps, no surprise charges.

🔑 Simple auth

One API key per project. Rotate or revoke anytime from your dashboard.