# Mart.dev, free: Email finder API

> Add email=true to a Profile request to return available work-email information.

Mart.dev's email finder API on its Free plan. It costs $0.00 per 1,000 emails. It returns 7 of the 10 key fields we check: Verification, Confidence, Name, Job title, Company, LinkedIn URL, Location.
The cheapest of the 762 plans we rank by price is [DataForB2B, $499 monthly, Growth, POST /enrich/profile, 5,000,000 results a month](https://datacircle.dev/find-email-apis/dataforb2b/499-monthly-growth-post-enrich-profile-5000000-results-a-month/llms.txt), at $0.10 per 1,000 emails.

- This page: https://datacircle.dev/find-email-apis/mart-dev/free
- [Best email finder API in 2026](https://datacircle.dev/best-email-finder-api.txt)
- Get it: https://mart.dev
- Its API docs: https://mart.dev/docs/#profile
- Sold by: Mart.dev (https://mart.dev)
- Checked: 2026-10-27

## In the answer

- Completeness: 70%
- Verification: ✓
- Confidence: ✓
- Name: ✓
- Job title: ✓
- Company: ✓
- LinkedIn URL: ✓
- Location: ✓

## Price

- $ per 1,000 emails: $0.00
- Per: call
- Billing: free

## Strengths

- Strengths: found live

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## Catch-all

- $ per 1,000: $0.00

## In their words

- Their pitch: Add email=true to a Profile request to return available work-email information.

## Data

- Freshness: live
- Keep data: no limit
- Use data: Use Mart for lawful purposes and comply with applicable privacy, data-protection, and marketing requirements. Do not bypass authentication or access controls, attempt to obtain nonpublic information, evade request limits, disrupt the service, or use data to harass, deceive, or unlawfully discriminate against people. A work email in a response is not permission to send unsolicited messages. You are responsible for your product, your users, and the purpose and lawful basis of your data use. Mart does not grant permission to use another company’s trademarks or copyrighted material. Public availability is not the same as being in the public domain. You are responsible for any permissions or other lawful basis needed for your use of returned information. Third-party records, text, images, and trademarks remain subject to their owners’ rights. Do not misrepresent their source or remove required attribution or legal notices.

## Plan

- Pay: $0
- You get: 100 credits
- Enough for: 100 calls
- Expires: never

## Rate limit

- Per second: 5
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: type "profile", url, email "true". Optional: domain, companyId, schoolId, headline, recruiterSignals
- Method: GET
- Path: /v1/linkedin

## About the plan

- Plan: Free
- Who can get it: anyone who can enter a binding agreement and verifies their email

## The 182 fields the plan's answer can hold

email, email status, email match, email confidence, company domain, ID, name, first name, last name, headline, current title, title source, current company, current company ID, current company LinkedIn URL, current company universal name, current company logo, memorialized, memorialized source, company state, about, followers, connections, location, city, state, country, country code, region code, jobs, job title, job location, job company, job company LinkedIn URL, job company universal name, job duration, job description, job start date, job end date, job is current, job company logo, job company ID, experience state, schools, school name, school LinkedIn URL, school slug, school ID, school degree, school field of study, school start date, school end date, school description, school logo, skills, languages, language name, language proficiency, award name, award issuer, award date, award description, certifications, certification name, certification URL, certification issuer, certification issuer URL, certification logo, certification issue date, certification expiration date, certification credential ID, courses, course name, course associated with, course associated with URL, volunteering, volunteering title, volunteering company, volunteering duration, volunteering start date, volunteering end date, volunteering description, volunteering cause, volunteering company URL, volunteering company logo, organizations, organization name, organization position, organization description, organization start date, organization end date, organization LinkedIn URL, publications, publication name, publication date, publication description, publication URL, publication publisher, publication authors, publication author name, publication author URL, projects, project title, project duration, project start date, project end date, project description, project contributors, project contributor name, project contributor URL, recommendations, recommender name, recommender URL, recommendation text, recommender picture, recommendations count, influencer, top voice, creator, websites, profile picture, photo state, cover image, LinkedIn member ID, member ID, LinkedIn ID, LinkedIn URL, public profile ID, people also viewed, people also viewed name, people also viewed URL, headline source, open to work, hiring, accessible, profile state, profile URL, resolved URL, credits consumed, credits remaining, execution time, experience availability, returned positions, positions with title, positions with derived title, positions with start date, positions with end date, positions with description, job group ID, job company domain, job company industry, job company size, job company headquarters, job position source, job company name source, job date source, school LinkedIn ID, school period, school insights, organization logo, website, website URL, website label, people also viewed public ID, country full name, current company domain, current company industry, current company size, current company headquarters, current school ID, public headline, current company website, current company description, current company type, current company employee count, current company employee count start, current company employee count end, current company founded, current company followers, current company city, current company region, current company country

## Mart.dev's plans (9)

- [Mart.dev, free](https://datacircle.dev/find-email-apis/mart-dev/free/llms.txt): $0.00 per 1,000, 70% complete, live
- [Mart.dev, $50 pack](https://datacircle.dev/find-email-apis/mart-dev/50-pack/llms.txt): $1.00 per 1,000, 70% complete, live
- [Mart.dev, $375 pack](https://datacircle.dev/find-email-apis/mart-dev/375-pack/llms.txt): $0.75 per 1,000, 70% complete, live
- [Mart.dev, $1,250 pack](https://datacircle.dev/find-email-apis/mart-dev/1250-pack/llms.txt): $0.50 per 1,000, 70% complete, live
- [Mart.dev, $3,750 pack](https://datacircle.dev/find-email-apis/mart-dev/3750-pack/llms.txt): $0.30 per 1,000, 70% complete, live
- [Mart.dev, $49 monthly](https://datacircle.dev/find-email-apis/mart-dev/49-monthly/llms.txt): $0.98 per 1,000, 70% complete, live
- [Mart.dev, $299 monthly](https://datacircle.dev/find-email-apis/mart-dev/299-monthly/llms.txt): $0.598 per 1,000, 70% complete, live
- [Mart.dev, $999 monthly](https://datacircle.dev/find-email-apis/mart-dev/999-monthly/llms.txt): $0.40 per 1,000, 70% complete, live
- [Mart.dev, $2,999 monthly](https://datacircle.dev/find-email-apis/mart-dev/2999-monthly/llms.txt): $0.24 per 1,000, 70% complete, live

## Mart.dev's calls for this API (1)

- `GET /v1/linkedin`: [Mart.dev, free](https://datacircle.dev/find-email-apis/mart-dev/free/llms.txt)

## Mart.dev's APIs (9)

- [Mart.dev: LinkedIn company post API pricing, 9 plans](https://datacircle.dev/linkedin-company-post-apis/mart-dev/free/llms.txt)
- [Mart.dev: LinkedIn company data API pricing, 9 plans](https://datacircle.dev/linkedin-company-profile-apis/mart-dev/free/llms.txt)
- [Mart.dev: cached LinkedIn company search API pricing, 9 plans](https://datacircle.dev/cached-linkedin-company-search-apis/mart-dev/free/llms.txt)
- [Mart.dev: LinkedIn profile post API pricing, 9 plans](https://datacircle.dev/linkedin-person-post-apis/mart-dev/free/llms.txt)
- [Mart.dev: cached LinkedIn people search API pricing, 9 plans](https://datacircle.dev/cached-linkedin-people-search-apis/mart-dev/free/llms.txt)
- [Mart.dev: LinkedIn job details API pricing, 9 plans](https://datacircle.dev/linkedin-job-details-apis/mart-dev/free/llms.txt)
- [Mart.dev: cached LinkedIn job search API pricing, 9 plans](https://datacircle.dev/cached-linkedin-job-search-apis/mart-dev/free/llms.txt)
- [Mart.dev: email finder API pricing, 9 plans](https://datacircle.dev/find-email-apis/mart-dev/free/llms.txt)
- [Mart.dev: LinkedIn profile API pricing, 9 plans, GET /v1/linkedin, Profile](https://datacircle.dev/linkedin-profile-apis/mart-dev/free-free-get-v1-linkedin-profile/llms.txt)
- [Mart.dev: LinkedIn profile API pricing, 9 plans, GET /v1/linkedin, Refresh](https://datacircle.dev/linkedin-profile-apis/mart-dev/free-free-get-v1-linkedin-refresh/llms.txt)

## Mart.dev: email finder API alternatives

- [Mailsfinder, $191.88 yearly, Growth annual, POST /email/findEmail](https://datacircle.dev/find-email-apis/mailsfinder/191-88-yearly-growth-annual-post-email-findemail/llms.txt): $0.24 per 1,000, 20% complete, live
- [OrbiSearch, $999 monthly, Unlimited Professional, POST /v1/unlimited/bulk-lookup](https://datacircle.dev/find-email-apis/orbisearch/999-monthly-unlimited-professional-post-v1-unlimited-bulk-lookup/llms.txt): $0.444 per 1,000, 50% complete, live
- [LinkedIn Scraper API, $49 monthly](https://datacircle.dev/find-email-apis/linkedin-scraper-api/49-monthly/llms.txt): $0.598 per 1,000, 20% complete, live
- [Vitalii Bondarev on Apify, $10,788 yearly](https://datacircle.dev/find-email-apis/vitalii-bondarev-on-apify/10788-yearly/llms.txt): $1.309 per 1,000, 50% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-27.

- https://mart.dev
- https://mart.dev/app.js?v=19
- https://mart.dev/docs/
- https://mart.dev/docs/docs-data.js?v=1
- https://mart.dev/docs/docs.js
- https://mart.dev/privacy
- https://mart.dev/terms