1Lookup

1Lookup

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

Visit
All-time revenue
$5,915,719

Ranked #23 on TrustMRR

MRR
$250,621

719 active subscriptions

Founder
robbyfrankRobby Frank

8,088 followers on 𝕏

Founded
January 2022
USUnited States

Revenue is verified withStripeStripe API key.Last updated: Nov 15, 2026, 02:08 PM

Startup insights
Value proposition

A single API and universal credit balance for validating, enriching, and analyzing phone, email, IP, company, social, and web data in real time.

Problem solved

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

41/100

1lookup.io

Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.

Tech stack

Additional info

76 data products behind one API; supports REST API, MCP, and integrations including HubSpot and Salesforce. Millions of lookups processed.

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