Email Finder API
Discover verified professional email addresses from a name and company domain with EmailVerify.io's email finder API. Supply a name and domain; the API tests up to 25 pattern combinations, confirms each with a live SMTP check, and returns the first verified match — or a clean not_found result. Built for lead generation, sales outreach, and B2B data enrichment at scale.
10 free finder queries + 100 verification credits · no credit card · replenishes monthly
From a Name to a Verified Email in One Request
The email lookup API combines pattern generation with real-time SMTP verification — so you only get addresses that actually exist.
Send Name + Domain
Pass a first name (or full name) and the company domain to the GET /api/v1/finder endpoint along with your API key.
Pattern Generation & Verification
The API generates up to 25 common email patterns (first.last, flast, first_last, etc.) and runs SMTP verification on each.
Verified Result Returned
The first confirmed deliverable address is returned as status: found with the email. If none verify, the response is status: not_found.
Why Teams Choose Our Email Finder API
A reliable find email address API needs more than pattern guessing — it needs live verification at the point of discovery.
25 Pattern Combinations
Covers the most common professional email formats to maximize the discovery rate across different company naming conventions.
Real-Time SMTP Verification
Every candidate pattern is confirmed against the mail server before being returned — no guesses, only verified addresses.
Company Domain Focus
Designed for professional domains. Free or public email domains are blocked to keep quality high and credits well-spent.
Clean JSON Response
Found addresses return {email, status:'found'}. Not-found cases return {email:null, status:'not_found'} — no ambiguity.
Predictable Credit Cost
Each finder request costs 10 credits regardless of outcome, making it easy to budget for large enrichment campaigns.
Shared API Key
One API key across all three EmailVerify.io APIs. Credits pool together and replenish automatically every month.
Integrate the Email Finder API in Your Stack
Call the /finder endpoint directly or use an official SDK for Python, Node.js, PHP, Ruby, Golang, .NET / C#.
import requests
url = "https://app.emailverify.io/api/v1/finder"
params = {"key": "YOUR_API_KEY", "name": "John", "domain": "example.com"}
resp = requests.get(url, params=params)
data = resp.json()
# {"email": "[email protected]", "status": "found"}
Where the Email Finder API Fits
Lead Generation
Turn a list of names and companies into verified contacts to feed your pipeline — a true lead generation email API.
Sales Outreach
Reach decision-makers directly by discovering their verified professional address before you write the first message.
Contact Enrichment
Enrich CRM records that have a name and company but no email, turning incomplete data into actionable contacts.
B2B Prospecting
Build targeted prospect lists from company domains and name lists without manual research or expensive data subscriptions.
Try a Free Email Finder API
Create a free account and receive 10 email finder queries plus 100 verification credits every month with no credit card required. Use your free queries to test real name-and-domain look-ups, evaluate accuracy on your target domains, and explore the response format before committing to a plan.
EmailVerify.io vs NeverBounce vs ZeroBounce
Start strong: $20/month for 30,000 verifications — up to 10× more emails than others per dollar.
| Verifications / month | EmailVerify.io | NeverBounce | ZeroBounce |
|---|---|---|---|
| 30,000 credits | $20 | $150 | $210 |
| 60,000 credits | $40 | $300 | $420 |
| 120,000 credits | $80 | $480 | $468 |
| 180,000 credits | $115 | $720 | $702 |
Get Started in 3 Steps
Start verifying emails in minutes with 100 free credits, no credit card required.
Create Free Account
Sign up and get instant access to your dashboard and API credentials.
Get Your API Key
Access your unique API key from your dashboard and start making requests immediately.
Make Your First Request
Call the API endpoint with your key and start verifying emails using your 100 free credits.
Ready to get started?
Get 100 free verification credits and 10 email finder queries when you sign up today. All credits replenish monthly.
Frequently Asked Questions
What is an email finder API?
An email finder API locates a professional email address from a person's name and company domain. EmailVerify.io's email finder API tests up to 25 likely combinations, validates each with MX, blacklist, and real-time SMTP checks, and returns the first verified address it finds — ideal for lead generation and outreach.
How does the email finder API work?
Send a GET request to https://app.emailverify.io/api/v1/finder with your API key, a name, and a company domain. The find email address API generates up to 25 combinations, runs MX, blacklist, and SMTP verification, and returns {"email":"[email protected]","status":"found"} or a not_found status if no valid address exists.
How accurate is the email finder API?
Every candidate address returned by the email lookup API is confirmed with MX, blacklist, and SMTP checks before being marked found, so you only receive deliverable, verified emails rather than guesses.
Is there a free email finder API?
Yes. New accounts include 10 free email finder queries plus 100 verification credits, no credit card required, replenished monthly. Each finder request uses 10 credits, so the free tier lets you trial the email finder API before upgrading.
What data do I need to find an email address?
You only need the person's name and their company domain. Note that free or public domains are blocked, so the find email by name and domain API works against professional or business domains.
What does the email finder API return when no match exists?
If no valid address is found, the API returns {"email":null,"status":"not_found"}. If you query a free domain, it returns a Free domains are blocked error.