AI Verdict
Confidence: MediumMarket need is real (fraud costs businesses 5-10% of revenue), but current execution is poor. Opportunity exists to build better product with proper monetization, marketing, and expanded features.
Financials
Buildability
Block Disposable & Temp Emails via API — Stop Fake Signups, Abuse & Trial Fraud (1-Line Integration)
TempMailChecker는 Mailinator, GuerrillaMail, Temp-Mail과 같은 일회용 이메일을 즉시 감지하여 가입 사기, 쿠폰 남용, 체험판 사기를 차단합니다. 실시간 REST API — 1회 요청으로 temp: true/false 결과를 반환합니다. 5ms 미만 처리 속도, 3개 글로벌 리전 지원. 무료 요금제 제공. 가입 절차를 보호하고 전송 성공률을 높이며, 실제 사용자만 데이터베이스에 등록되도록 보장합니다.
Temp email detection API with $0 MRR and -100% growth - struggling to monetize despite clear market need.
None - basic API with disposable email database that's easily replicable
- SaaS companies with free trials (B2B tools, productivity apps) experiencing fake signups and trial fraud
- E-commerce platforms with coupon abuse issues, dating apps combating fake profiles
- No machine learning for pattern detection
- Missing bulk verification
- No email deliverability scoring
- Lack of integration marketplace
- Add AI-based disposable email detection (beyond domain lists)
- Combine with phone verification for 2-factor fraud prevention
- Create industry-specific packages (dating apps, fintech, e-commerce)
- Offer free tier with attribution requirement
Low - API tools rarely go viral, rely on developer adoption and integration partnerships
- Low barrier to entry - competitors can easily replicate
- Email providers constantly create new disposable domains
- GDPR/privacy concerns with email verification
- Free alternatives available (open-source lists, regex validation)
$500-1,000/month for MVP (servers, domain research, basic monitoring)
- Real-time email validation API
- Disposable email domain database (5,000+ domains)
- Sub-100ms response time
- Basic analytics dashboard
Skip: Multiple pricing tiers, Custom blacklist/whitelist, Slack support, Global regions
