
1Lookup
The #1 tool for validating phone, email and IP data in real time. All through one powerful API.

1Lookup
The #1 tool for validating phone, email and IP data in real time. All through one powerful API.
Ranked #23 on TrustMRR
719 active subscriptions
8,088 followers on 𝕏
Revenue is verified with
Stripe API key.Last updated: Nov 15, 2026, 02:08 PM
A single API and universal credit balance for validating, enriching, and analyzing phone, email, IP, company, social, and web data in real time.
Businesses struggle with inaccurate or fragmented contact and business data, which leads to bad leads, fraud, poor data quality, and wasted outreach. 1Lookup consolidates fast verification and enrichment tools into one service.
Audience
Businesses and developers integrating data validation, fraud prevention, contact enrichment, and prospecting into CRMs, apps, and workflows, especially SMBs and growing businesses.
Pricing
Pay-as-you-go using universal credits; 1 credit per phone, email, or IP check. 7-day free trial with credits; no setup fees or minimums.
Domain Rating
1lookup.io
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