Reverse Email Lookup API

Turn an Email Into a Full Identity

LinkFinder AI's reverse email lookup API takes any email address and returns the person behind it — full name, job title, company, location, and verified social profiles. Identify unknown contacts, enrich inbound leads, and de-anonymize signups in real time.

99.9% API Uptime
SOC 2 Compliant
500M+ Profiles
Pay Only for Matches
500M+
Profiles Indexed
99.9%
API Uptime
<100ms
Response Time
95%
Match Accuracy
Code examples
Copy and paste — works in any language or automation platform.
curl -X POST 'https://api.linkfinderai.com/reverse_email_lookup' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"email": "[email protected]"}'
Use cases
Who uses this and why.
🕵️
De-anonymize Signups
Reveal the real person behind a free-trial or newsletter email the moment they register. Turn an anonymous address into a named, qualified contact.
🎯
Inbound Lead Enrichment
Attach name, title, and company to every form fill and demo request. Route and score inbound leads using full context instead of just an email.
🛡️
Fraud & Risk Screening
Verify that an email belongs to a real, consistent identity before approving accounts. Flag throwaway or mismatched addresses in real time.
🔄
CRM Enrichment
Backfill records that only contain an email with full firmographic and role data. Keep contacts actionable so reps know exactly who they're emailing.
📞
Support & Account Context
Surface who a support ticket or reply is from before your team responds. Prioritize high-value accounts using role and seniority data.
🤖
Automated Workflows
Trigger flows the instant an email enters your system. Build no-code automations that branch on the identity and company behind an address.
Integrate in minutes
Works natively with the tools your team already uses.
n8n
HTTP Request node — no plugin needed
Make
HTTP module in any scenario
Zapier
Webhooks by Zapier action
REST API
Any language, any platform
View pre-built workflow templates →
Frequently asked questions
What does the reverse email lookup API return?
Send any email address and the API returns the person behind it: full name, job title, seniority, location, and verified social profiles, plus a nested company object with name, domain, and industry. Each result carries a confidence score.
Does it work with personal and free email providers?
It works best with business email addresses, where match rates and company data are strongest. Free webmail addresses such as gmail.com may resolve to a person but won't return company firmographics. You only pay for successful matches.
How accurate and fresh is the data?
We maintain 95% match accuracy across more than 500 million indexed profiles, continuously re-verified against multiple sources. The confidence score lets you set your own threshold for automated decisions.
What's the rate limit for lookups?
Standard plans include 1000 requests per minute with burst capacity up to 2000 requests. For bulk enrichment, enterprise customers can request higher limits and batch endpoints sized to their volume.
How do you handle data compliance and privacy?
We're SOC 2 compliant and follow GDPR guidelines for all data processing. Data is sourced from publicly available business information, and we provide opt-out mechanisms for individuals when required.

Start Reverse Email Lookups Today

Turn any email address into a complete person and company profile with one API call.

Get API Key Free View API Docs