OpenLookup provides a comprehensive risk intelligence API for emails, phone numbers, IP addresses, and domains. It offers a risk score from 0 to 100, along with a clear recommendation, all accessible through a single API key and credit balance. This consolidation eliminates the need for multiple vendors, streamlining integrations and billing.

Consolidated Risk Signals: Replaces separate email validation, phone lookup, IP reputation, and domain intelligence tools with a single API.

Unified Authentication and Billing: Uses one API key and a shared credit balance across all services.

Transparent Scoring: Risk scores are derived from documented, transparent signals, not a black-box model.

Real-time Checks: Employs live DNS, RDAP, and TLS checks for accurate, up-to-date information.

Fail-Open Pipeline: Ensures that timeouts or dependency issues result in degraded but usable results, preventing signup flow interruptions.

Data Privacy: All submitted data (emails, phone numbers, IPs, domains) is SHA256-hashed before storage, with only hashes retained for logging.

Use Cases: Ideal for screening free-trial signups, onboarding marketplace users, pre-screening in fintech, and preventing support/lead-gen form spam.

Tiered Pricing: Offers a free tier with 100 requests per month, alongside paid plans for higher volumes.