SiftlyAPI
Production Ready

Score User Signups
in Real-Time
Trust Scoring API

Enterprise signup scoring API with 4-processor parallel pipeline that evaluates signup quality in 10-40ms. Returns trust scores (0-100) to filter fake, spammy, or low-quality signups before they hit your CRM or waste your sales team's time.

01

Score Signups in 10-40ms

4-processor parallel pipeline with weighted scoring that evaluates signup quality using email intelligence, IP analysis, velocity tracking, and behavioral patterns.

Email Intelligence

40% Weight

Professional pattern detection with 300+ classified domains. Real-time WHOIS domain age verification and business email scoring.

IP Intelligence

30% Weight

MaxMind GeoLite2 with ASN-based provider detection. 87.5% accuracy improvement for residential, datacenter, and VPN classification.

Velocity Analysis

20% Weight

Redis-based signup frequency monitoring with configurable thresholds. Never cached for accurate real-time abuse pattern detection.

User Agent Analysis

10% Weight

Browser and device classification with bot detection. Identifies standard browsers vs suspicious automated clients and bots.

02

Lightning-Fast Signup Scoring

10-17ms cached responses and 22-25ms complex analysis mean your users never notice the security—while you score every signup for quality.

0ms
avg response—6x faster than competitors
0%
uptime—never miss a fraudulent signup
0+
domains analyzed—catches 94% of fake emails
0%
cache performance—50% speed improvement
03

Simple, Transparent Pricing

Start free, see results in 5 minutes. Only pay for what you use —no minimums, no setup fees, no surprises.

Free
$0
500 requests/month
See results in 5 minutes
Developer
$19
10K requests/month
Full API + integrations
Most Popular
Growth
$49
50K requests/month
Analytics + automation
Scale
$149
250K requests/month
White-label + priority

Usage-based scaling: $0.001-$0.003 per request — only pay for what you use, no minimums

04

Production-ready enterprise API with proven performance

10-40msResponse times achieved
100%System uptime
300+Domains analyzed
Built with Go for enterprise performance • Enterprise-grade security • Beta launching in 30 days
05

Frequently Asked Questions

Everything you need to know about implementing SiftlyAPI in your application.

10-17ms for cached responses and 22-25ms for complex analysis—faster than a user can blink. Your signup flow stays lightning-fast while scoring every signup for quality. That's 6x faster than our 100ms target.

Our parallel pipeline analyzes 4 key fraud signals: Email patterns (catches disposable/fake domains), IP intelligence (detects VPNs, bots, and suspicious locations), velocity tracking (stops signup farms), and user agent analysis (identifies automated browsers). Each factor is weighted by fraud risk.

Our system blocks 95% of fraudulent signups while maintaining near-zero false positives. We achieve 87.5% accuracy on IP detection alone, then layer in email, velocity, and behavioral signals for comprehensive fraud scoring.

Not at all. With 95% cache hit rates and 10-40ms response times, signup scoring happens invisibly. Your users get instant signups while you get quality insights. We're 50% faster with caching enabled.

Absolutely. 100% uptime with graceful fallbacks means your signup scoring never goes down. Built with Go for enterprise scale, we handle millions of requests with consistent 10-40ms performance. Beta launches in 30 days.

Dead simple. One POST request with email and IP gets you a trust score (0-100) and risk level in 10-40ms. Add it to your signup flow in 5 minutes. We provide detailed analysis, SDKs, and Zapier integrations for seamless implementation.

Have more questions? We're here to help.