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Dev tools · August 10, 2026

OpenLookup.io

one API to verify email, phone, IP, and domain

What it does

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.

Does the same job

all alternatives →
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    Simple email validation API for a $39 lifetime license

  • Proofy2016 · ▲181

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    Identify spam signups & bad actors

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    API to build location-aware mobile and web apps

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    Detect fake signups in under 200ms with an easy-to-use API

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