1Lookup

In plain words

1Lookup is an API platform that verifies and enriches phone numbers, email addresses, IP addresses, and social data through a single interface with a shared credit system. It provides real-time validation in under 300 milliseconds, fraud risk scoring, and daily-updated phone data from FCC and carrier sources. The platform combines 44 data products including B2B prospecting, SEO intelligence, and transcription services, allowing developers to validate contacts and enrich customer data without switching between multiple providers.

written from the facts on this page · October 2026

From the sources

Validate phone numbers, emails, and IP addresses with enterprise-grade accuracy. Stop paying for bad data. 15% more accurate than competitors. Start free with 1,000 lookups.

Phone, email, IP, social and SEO data through one API. 43 data products on one shared credit balance, no per-vendor contracts. Validation answers in under 0.3 seconds. Phone, email, IP address, or domain. Validated in real time. Start with real-time validation across phone, email, IP and domain data, then add enrichment, B2B prospecting, SEO intelligence and transcription from the same API and the same universal credits. Verify if a number is active, risky, or fraudulent in milliseconds. Advanced people and asset location services for professionals. Transcribe at scale on the credit balance you already have, billed at 6 credits per minute of audio. No minimums, no setup fees just fast,…from 1lookup.io

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