Email Verification
Requiems API vs NeverBounce
NeverBounce (a ZoomInfo company) processes billions of verifications monthly and integrates with 85+ marketing platforms. Email-only coverage; each additional data type means another vendor.
Broader coverage
NeverBounce is email-only. Requiems API adds phone, IP, finance, and 80+ more endpoints under one key.
No enterprise lock-in
NeverBounce is owned by ZoomInfo; pricing and roadmap follow enterprise priorities. Requiems API is independent and developer-centric.
Simpler integration
One auth pattern, one error format, one SDK across all APIs. NeverBounce requires a separate integration per product.
Feature comparison
| Feature | Requiems API | NeverBounce |
|---|---|---|
| Syntax validation | ||
| DNS / MX record check | ||
| SMTP verification | ||
| Catch-all detection | ||
| Disposable email detection | ||
| Role-based address detection | ||
| Bulk list cleaning | ||
| Real-time API | ||
| 85+ marketing integrations | ||
| IP geolocation | ||
| Phone validation | ||
| Finance / BIN lookup |
Benchmarks
- Latency (p50)
- ~120ms p50
- Uptime SLA
- 99.9%
- API coverage
- 100+ APIs
- Free tier
- 500 req/mo
- Latency (p50)
- ~150ms p50 (est.)
- Uptime SLA
- 99.9%
- API coverage
- ~5 email endpoints
- Free tier
- 1,000 credits on signup
Philosophy
NeverBounce excels at email list hygiene at scale and has the deepest integration ecosystem in email marketing. If you need 85 native platform connectors, they're hard to beat. Requiems API is built for developers who want raw API access to multiple data signals β less clicks, more code, broader coverage.
Migrating from NeverBounce
-
1
Replace `api.neverbounce.com` base URL with `requiems.xyz`
-
2
Swap API key from query param to `requiems-api-key: <key>` header
-
3
Map result codes: `valid` β `deliverable`; `invalid` β `undeliverable`; `disposable` β `risky`
Ready to switch from NeverBounce?
500 free API calls per month, no credit card required. Migration takes under an hour.