# LinkFinder AI, free: Reverse email lookup API

> Transform email addresses into rich LinkedIn profile data with our powerful API. LinkFinder AI instantly finds LinkedIn profiles, job titles, company information, and contact details from any email address.

LinkFinder AI's reverse email lookup API on its Free trial plan. It costs $0.00 per 1,000 people. It returns none of the 13 key fields we check: Experience, Education, Skills, Headline and 9 more.
We rank 344 plans by price. [Village's $1 monthly plan](https://datacircle.dev/reverse-email-lookup-apis/village/1-monthly-core-post-v2-people-enrich-by-email-reverse-lookup-by-email-cached-only/llms.txt) costs the least per 1,000 people: as little as $0.0000039. Village's $1 monthly plan covers up to 259,200,000 people a month at no extra cost.
[Village's $25 pack (Reverse Lookup by Email, cached only)](https://datacircle.dev/reverse-email-lookup-apis/village/25-pack-1000-credits-post-v2-people-enrich-by-email-reverse-lookup-by-email-cached-only/llms.txt) covers any number of people. Village's $25 pack costs more up front than Village's $1 monthly plan.
[GetProspect](https://datacircle.dev/reverse-email-lookup-apis/getprospect/399-monthly-growth-50k-post-v2-people-enrich/llms.txt), [Village](https://datacircle.dev/reverse-email-lookup-apis/village/1-monthly/llms.txt) and [treg](https://datacircle.dev/reverse-email-lookup-apis/treg/top-up-from-200/llms.txt) are the best reverse email lookup API providers in our benchmark.

- This page: https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/free
- [Best reverse email lookup API in 2026: providers compared](https://datacircle.dev/best-reverse-email-lookup-api.txt)
- Get it: https://linkfinderai.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- Request: `POST https://api.linkfinderai.com/`
- API key: with the plan, on https://linkfinderai.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- Its API docs: https://linkfinderai.com/api-documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing#linkedin
- Sold by: LinkFinder AI (https://linkfinderai.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing)
- Checked: 2026-11-03

## In the answer

- Completeness: 0%

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: lead_full_name_to_linkedin_url · lead_full_name_to_email · linkedin_profile_to_email · linkedin_profile_to_phone · linkedin_profile_to_linkedin_info · company_name_to_website · company_name_to_email · company_name_to_phone · company_name_to_linkedin_url · company_name_to_employee_count · company_name_to_employees · company_domain_to_employees · linkedin_company_to_linkedin_info · linkedin_company_to_employee_count · linkedin_company_to_employees · linkedin_post_to_reactions · b2b_data_lookup · instagram_profile_to_instagram_info

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Transform email addresses into rich LinkedIn profile data with our powerful API. LinkFinder AI instantly finds LinkedIn profiles, job titles, company information, and contact details from any email address.

## Data

- Keep data: no limit
- Use data: You agree to use the Service only for lawful, legitimate B2B purposes, including: B2B sales prospecting and outbound outreach in compliance with applicable anti-spam laws, Recruitment and talent research, Market research and competitive intelligence, Enriching internal CRM and sales databases. [...] You agree NOT to use the Service to: Send unsolicited bulk commercial messages (spam) in violation of CAN-SPAM, GDPR, the ePrivacy Directive, or other applicable anti-spam regulations, Harass, stalk, defame, intimidate, or discriminate against any individual, Collect, process, or use data of EU/EEA data subjects without a valid legal basis under the GDPR, Use the Service for any unlawful purpose, fraud, or to facilitate illegal activity, Resell, sublicense, or redistribute the Service or its outputs without our prior written consent, [...] Use automated means to abuse rate limits, circumvent security, or overload our systems, Share your account credentials or API keys with unauthorized third parties. [...] we grant you a non-exclusive, non-transferable, revocable license to access and use the Service for your internal business purposes during your subscription period.

## Plan

- Pay: $0
- You get: 25 credits
- Enough for: 5 calls, once
- Expires: no time limit

## Rate limit

- Batch: 1

## Speed

- Answer: in the call or by polling

## The call

- You send: type "email_to_linkedin_url" and input_data
- Method: POST
- Path: /

## About the plan

- Plan: Free trial
- Who can get it: anyone 18 or over and legally capable of entering into a binding contract, for business purposes only

## The 3 fields the plan's answer can hold

LinkedIn URL, status, message

## LinkFinder AI's plans (11)

- [LinkFinder AI, free](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/free/llms.txt): $0.00 per 1,000, 0% complete
- [LinkFinder AI, $25 pack](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/25-pack/llms.txt): $125.00 per 1,000, 0% complete
- [LinkFinder AI, $75 pack](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/75-pack/llms.txt): $107.143 per 1,000, 0% complete
- [LinkFinder AI, $200 pack](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/200-pack/llms.txt): $100.00 per 1,000, 0% complete
- [LinkFinder AI, $49 monthly](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/49-monthly/llms.txt): $49.00 per 1,000, 0% complete
- [LinkFinder AI, $99 monthly](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/99-monthly/llms.txt): $24.75 per 1,000, 0% complete
- [LinkFinder AI, $249 monthly](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/249-monthly/llms.txt): $17.786 per 1,000, 0% complete
- [LinkFinder AI, $348 yearly](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/348-yearly/llms.txt): $29.00 per 1,000, 0% complete
- [LinkFinder AI, $708 yearly](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/708-yearly/llms.txt): $14.75 per 1,000, 0% complete
- [LinkFinder AI, $1,788 yearly](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/1788-yearly/llms.txt): $10.643 per 1,000, 0% complete
- [LinkFinder AI, contact us](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/contact-us/llms.txt): 0% complete

## LinkFinder AI's calls for this API (1)

- `POST /`: [LinkFinder AI, free](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/free/llms.txt)

## LinkFinder AI's APIs (4)

- [LinkFinder AI: LinkedIn profile API pricing, 11 plans](https://datacircle.dev/linkedin-profile-apis/linkfinder-ai/free/llms.txt)
- [LinkFinder AI: reverse email lookup API pricing, 11 plans](https://datacircle.dev/reverse-email-lookup-apis/linkfinder-ai/free/llms.txt)
- [LinkFinder AI: email finder API pricing, 11 plans, POST /, lead_full_name_to_email](https://datacircle.dev/find-email-apis/linkfinder-ai/free/llms.txt)
- [LinkFinder AI: email finder API pricing, 11 plans, POST /, linkedin_profile_to_email](https://datacircle.dev/find-email-apis/linkfinder-ai/free-trial-post-linkedin-profile-to-email/llms.txt)
- [LinkFinder AI: phone finder API pricing, 10 plans](https://datacircle.dev/find-phone-apis/linkfinder-ai/25-pack/llms.txt)

## LinkFinder AI: reverse email lookup API alternatives

- [Airscale, $3,750 yearly](https://datacircle.dev/reverse-email-lookup-apis/airscale/3750-yearly/llms.txt): $10.42 per 1,000, 77% complete
- [Pipecorn, $3,799 monthly](https://datacircle.dev/reverse-email-lookup-apis/pipecorn/3799-monthly/llms.txt): $10.553 per 1,000, 54% complete, stored
- [Tomba, $22,491 yearly, Scale 350k, GET /combined/find](https://datacircle.dev/reverse-email-lookup-apis/tomba/22491-yearly-scale-350k-get-combined-find/llms.txt): $10.71 per 1,000, 15% complete, 1 month
- [Clearout, $675 monthly](https://datacircle.dev/reverse-email-lookup-apis/clearout/675-monthly/llms.txt): $10.80 per 1,000, 23% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-03.

- https://linkfinderai.com/api-documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://linkfinderai.com/linkedin-profile-scraper?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://linkfinderai.com/linkedin-search-by-email-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://linkfinderai.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://linkfinderai.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://linkfinderai.com/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://linkfinderai.com/refund-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://linkfinderai.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing