Abstract API Alternative
Abstract's Email Validation API documents a broad feature set — deliverability, SMTP verification, MX records, disposable and catch-all detection, quality/risk scoring, domain reputation, typo detection, role-email flagging, and email breach checking — as one product in a wider multi-API platform.
Good for
- Teams already using (or wanting) Abstract's broader multi-product API platform (geolocation, phone validation, company enrichment)
- Anyone who specifically needs breach-exposure checking alongside address verification
Pricing
| Tier | Price | Details |
|---|---|---|
| Free | $0/month | 100 requests, 3 req/sec |
| Starter | $17/month (annual) | 5,000 requests/month (60,000/year), 3 req/sec |
| Standard | $37/month (annual) | 5,000 requests/month, adds sender/domain enrichment |
| Professional (Most Popular) | $39/month (annual) | 5,000 requests/month, full feature set incl. risk assessment and breach checks |
| Enterprise | Custom | Flexible volume/rate, SOC 2 & GDPR, dedicated support |
Strengths
- Email breach checking — flags addresses that have appeared in known data-breach dumps, a capability this product doesn't have at all
- Part of a wider multi-product API platform, useful if you need geolocation/phone/company data alongside email
- A genuinely broad single-endpoint feature list: deliverability, SMTP, MX, disposable, catch-all, typo detection, role flagging
Limitations
- Risk assessment and quality scoring methodology aren't publicly documented in detail
- No publicly documented context-aware scoring per use case
- No publicly documented per-signal explainability with severity and point impact
Where Email Risk Radar differs
Full score explainability
Every point of an Email Risk Radar score traces to a named signal with a severity, an impact value, and a plain-language description.
Context-aware weighting
Scoring adapts based on a context parameter (signup, B2B lead, marketplace, payment) rather than a single fixed evaluation.
Single-purpose product
Email Risk Radar doesn't bundle unrelated APIs (geolocation, phone validation) — it's focused specifically on email risk and verification, with no breach-checking feature.
FAQ
Yes — 100 requests per month at 3 requests/second, as of the last check (18 August 2026).
Yes — email breach checking, flagging addresses that have appeared in known data-breach dumps, is a publicly documented feature Email Risk Radar doesn't have at all.
Abstract's risk assessment and quality scoring methodology aren't publicly documented in detail, and it's one product inside a wider multi-API platform (geolocation, phone validation, company enrichment). Email Risk Radar is single-purpose, with every score point traceable to a named signal and context-aware weighting.