Audience
Developers, product teams, and risk/compliance professionals who need an API to validate and verify user phone numbers, email addresses, and IPs in real time to improve data quality, prevent fraud, and reduce risk
About 1Lookup
1Lookup is an enterprise-grade data verification and intelligence platform that gives businesses real-time, high-accuracy validation for phone numbers, email addresses, and IP addresses through a unified API, helping ensure data quality, reduce fraud, and protect user experiences. It aggregates data from authoritative sources, including carrier networks, FCC databases, and global threat feeds, with daily updates to deliver sub-second verification results that detect invalid, risky, or fraudulent identities, improve deliverability, and flag disposable or suspicious contact data. The core services include phone validation with HLR and carrier lookup, phone spam and risk detection, email address validation with SMTP checks and disposable domain screening, and IP intelligence for precise geolocation, proxy/VPN detection, and risk scoring, all accessible via modern REST API calls that scale to millions of daily lookups without rate limits.
Other Popular Alternatives & Related Software
TrustLookup
TrustLookup is a hosted API and web dashboard for checking phone numbers, email addresses, IP addresses and domains. The API identifies each value and returns results for selected checks. Phone checks cover validity, format and line type; paid-plan lookups add the current carrier, number portability and live HLR status. Email checks assess syntax, mail servers, mailbox response, disposable and role addresses, and catch-all domains. IP results include location, network and ISP, hosting, VPN, proxy and Tor indicators, plus a free public spam-blocklist check. Domain lookups provide WHOIS and age information. Free tools check SPF and DMARC records and provide VIN, NPI and USDOT lookups. Users can check items in the browser, call the API or upload CSV files for bulk processing. Paid plans include Pro phone lookups and CSV uploads; Growth and Scale add webhooks, and Growth includes five team seats. The service supports developers and teams reviewing signups, contact data and risk.
Learn more about TrustLookup
Bouncy
Bouncy is an AI-powered email verification and list hygiene platform that helps businesses clean, validate, and monitor their email lists to reduce bounce rates, improve deliverability, and protect sender reputation by removing invalid, risky, or disposable addresses before they harm campaign performance. Its verification engine performs 20+ checks per email, including syntax, domain existence, MX and SMTP validation, spam trap and disposable email detection, and role-address screening, producing detailed analytics and segmented results that let you export clean lists and focus on real contacts. It supports bulk list cleaning at high throughput, processing tens of thousands of emails per minute, and offers a real-time API so you can validate addresses at the point of capture in forms, checkout flows, or CRM imports with sub-second response times.
Learn more about Bouncy
Data8
Data8 offers a comprehensive suite of cloud-based data quality solutions designed to ensure your data is clean, accurate, and up-to-date. Our services encompass data validation, cleansing, migration, and monitoring, tailored to meet specific business needs. Data validation services include real-time verification tools for address autocomplete, postcode lookup, bank account validation, email verification, name and phone validation, and business insights, all aimed at capturing accurate customer data at the point of entry. Data8 helps improve B2B and B2C databases by offering appending and enhancement services, email and phone validation, data suppression for goneaways and deceased individuals, deduplication and merge services, PAF cleansing, and preference services. Data8 is an automated deduplication solution compatible with Microsoft Dynamics 365, designed to dedupe, merge, and standardize multiple records efficiently.
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Reoon Email Verifier
One of the most accurate email validation services that cleans invalid, temporary & unsafe email addresses. Reoon can verify the most difficult email domains, including Gmail, Yahoo, Microsoft, AOL and Custom Domains with 99% accuracy. With Reoon Email Verifier you can:
1. Verify emails from Gmail, Yahoo, Microsoft, AOL and other domains.
2. Validate email addresses in bulk without sending any emails.
3. Clean up email lists with great accuracy (99%).
4. Detect dynamically changing temporary/disposable addresses.
5. Significantly reduce the bounce rate of email campaigns.
Unique things about Reoon Email Verifier:
1. Can detect soft bounces like storage full or account disabled on Gmail etc.
2. Can detect temporary emails dynamically to catch the latest domains.
3. Quick API Validation can verify emails live within 0.5 seconds.
It's a web application and runs on Reoon's server. Users can access and use this from any web browser.
Learn more about Reoon Email Verifier
Pricing
Starting Price:
$49 per month
Free Trial:
Free Trial available.
Integrations
API:
Yes, 1Lookup offers API access
No integrations listed.
Company Information
1Lookup
United States
www.1lookup.io
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Product Details
Platforms Supported
Cloud
Training
Documentation
Live Online
Webinars
Videos
Support
24/7 Live Support
Online
1Lookup Frequently Asked Questions
Q: What kinds of users and organization types does 1Lookup work with?
1Lookup works with these users and organization types: Mid Size Business, Small Business, Enterprise, Freelance, Nonprofit, Government, and Startup.
Q: What languages does 1Lookup support in their product?
1Lookup supports these languages: English.
Q: What kind of support options does 1Lookup offer?
1Lookup offers support via 24/7 live support and online.
Q: Does 1Lookup have an API?
Yes, 1Lookup has an API.
Q: What type of training does 1Lookup provide?
1Lookup provides training in the form of documentation, live online, webinars, and videos.
Q: Does 1Lookup offer a free trial?
Yes, 1Lookup offers a free trial.
Q: How much does 1Lookup cost?
Pricing for 1Lookup starts at $49 per month.