1Lookup

1Lookup provides enterprise-grade data verification and fraud prevention through a simple, SMB-focused API platform. Unlike complex enterprise solutions costing $50K+, we deliver the same accuracy at 90% less cost with 5-minute setup. Core Products: Phone Validation with Fraud Intelligence - Validates 200+ countries with carrier details, proprietary fraud scoring (0-100) using 50+ risk factors, DNC compliance checking, and SIM swap detection. Catches 25% more invalid numbers than competitors. Email Validation with Deliverability Scoring - Advanced fraud detection beyond syntax validation, domain reputation analysis, disposable email detection, and inbox placement prediction. IP Address Lookup with Risk Intelligence - Precise geolocation with 5,000+ VPN detection, proxy/Tor identification, and threat intelligence integration.