Product Catalog

Complete Data Validation Suite

One API, every signal. One platform, universal credits, and all the validation and intelligence you need to stop fraud and improve data quality.

Core Services

7 entries

1Lookup phone validation API response with line type, carrier, fraud score and DNC status for a validated number

Phone Intelligence

Validation + carrier + porting + DNC + fraud scoring

The most comprehensive phone validation and fraud detection platform. Get real-time carrier data, fraud scores, and DNC status in one lookup.

Response: 287ms
Accuracy: Enterprise-grade
Pricing: Universal credits

Key Features

Real-time validation and line status
Carrier identification and OCN
Line type (mobile/landline/VOIP)
Porting information (LRN)
Geographic data (state, rate center)
Do Not Call (DNC) registry status
Fraud scoring (0-100)
SIM swap detection
Coverage for 200+ countries

Common Use Cases

E-commerce fraud preventionLead qualificationSMS marketing compliance2FA verificationCustomer onboarding

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Email Validation

Syntax, MX records, SMTP verification, spam risk

Verify email deliverability and detect disposable addresses with real-time SMTP validation and advanced fraud detection.

Response: <300ms
Accuracy: Enterprise-grade
Pricing: Universal credits

Key Features

Syntax verification (RFC compliant)
Domain validation and DNS checks
MX record verification
SMTP validation
Disposable email detection
Role-based email identification
Catch-all detection
Email fraud scoring
Deliverability prediction

Common Use Cases

Email marketing campaignsUser registration validationCustomer onboardingNewsletter signupsLead generation

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1Lookup IP lookup API result with geolocation, ISP and a low fraud risk score on a globe with location pin

IP Intelligence

Proxy/VPN/Tor detection with fraud risk scoring

Advanced IP analysis with proxy/VPN detection, geolocation, and risk scoring to prevent fraud and ensure accurate targeting.

Response: <300ms
Accuracy: Enterprise-grade
Pricing: Universal credits

Key Features

Precise geolocation data
ISP and organization identification
Connection type detection
Proxy/VPN detection
Tor exit node detection
Risk scoring (0-100)
Time zone information
Hosting detection
Threat intelligence

Common Use Cases

Fraud preventionContent personalizationGeographic complianceAd fraud detectionSecurity monitoring

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Phone Spam Check

Spam, fraud, and robocall risk analysis

Intelligent assessment of phone numbers for spam, fraud, and robocall risks with comprehensive reputation data and ML-powered predictions.

Response: 198ms
Accuracy: Enterprise-grade
Pricing: Universal credits

Key Features

Spam score (0-100)
User reputation ratings
Robocaller detection
Complaint history tracking
Fraud campaign identification
Caller ID spoofing detection
Industry blacklist checks
Scam type predictions
Organized fraud ring detection

Common Use Cases

Call center protectionCustomer service filteringFraud preventionTelecom complianceLead qualification

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MCP Connector

Add contact verification to Claude, Cursor & ChatGPT

Bulk Validation

Upload and process large lists in bulk

API Access

RESTful API docs, code examples, and integration guides

Data Append & Enrichment

6 entries

Email Append

Append emails from name + address inputs

Skip Trace

Find phone numbers from name + address

Phone Scrub

DNC status, line type, and risk flags

Reverse Email Append

Identity enrichment from an email

Reverse IP Append

Contact and geo intel from an IP

Reverse Phone Lookup

Find owner info from a phone number

Advanced Features

3 entries

HLR Lookup

Network intelligence and routing data

Carrier Lookup

Identify carrier and network type

Fraud Detection

Advanced scoring for risk assessment

Web Intelligence

3 entries

Website Scraper

Turn URLs into Markdown for AI workflows

Domain SEO Intelligence

DA/DR, backlinks, and traffic metrics

Website Contacts Scraper

Extract emails, phones, and social links

Audio Transcription

1 entry

Audio Transcription

Cheapest transcription API in the world

Intent Data

1 entry

SERP Scraper

Google SERP scraping for any query

Scrape Google search results for any query. Get organic rankings, Knowledge Graph data, People Also Ask questions, and related searches in one API call.

Response: Real-time
Accuracy: Real-time
Pricing: Universal credits

Key Features

Top 10 organic results
Knowledge Graph detection
People Also Ask questions
Related searches
Answer Box content
Structured JSON output
Bulk CSV upload
7-day intelligent cache

Common Use Cases

SEO & content strategyCompetitive intelligenceBrand monitoringKeyword researchLead generation

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Why 1Lookup

Why Choose 1Lookup?

Built for SMBs who need enterprise-grade accuracy without enterprise complexity

Straight from the source

Line type, carrier, and DNC status pulled from carrier and FCC feeds, not resold through a middle layer.

Answers in under 300ms

Validation returns from global edge locations, fast enough to sit inline in a signup or checkout flow.

Updated every 24 hours

Phone and carrier data refreshes daily from primary sources, not recycled on a monthly cycle.

A risk score on every lookup

Each result carries a fraud score, so you can flag a risky contact before you dial, send, or approve it.

Universal Credits, One Platform

Use the same credits across all products. No complex pricing tiers or per-product billing. Start with one product and add the others whenever you need them, same key, same credits.

View Pricing API Documentation

Every product in this catalog draws from the same universal credit balance