# AI Ark, free: Cached reverse email lookup API

> Identifies a person from an email address: if a person with that email exists in the AI Ark database, you get back their full profile (name, title, company, LinkedIn, and more) — similar to a People Search result, excluding valid email and mobile phone. [...]

AI Ark's cached reverse email lookup API on its Free Plan. It costs $0.00 per 1,000 people. It returns 12 of the 13 key fields we check: Experience, Education, Skills, Headline, About, Location, Photo, Followers, Connections, Certifications, Languages, Open to work.

- This page: https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/free
- Get it: https://ai-ark.com/pricing
- Its API docs: https://docs.ai-ark.com/reference/people-reverse-lookup
- Sold by: AI Ark (https://ai-ark.com)
- Checked: 2026-10-22

## In the answer

- Completeness: 92%
- Experience: ✓
- Education: ✓
- Skills: ✓
- Headline: ✓
- About: ✓
- Location: ✓
- Photo: ✓
- Followers: ✓
- Connections: ✓
- Certifications: ✓
- Languages: ✓
- Open to work: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: treg: your key free, paid $2.634 per 1,000 results

## Charges

- Per: call
- Also pays for: from the same budget: People Preview · People Search · Company Search · Find Emails by Track ID · Export People with Email · Export Single Person with Email · Mobile Phone Finder · Personality Analysis

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Identifies a person from an email address: if a person with that email exists in the AI Ark database, you get back their full profile (name, title, company, LinkedIn, and more) — similar to a People Search result, excluding valid email and mobile phone. [...]

## Data

- Freshness: 30 days
- Keep data: no limit
- Use data: Subject to your compliance with these Terms and all applicable laws, we grant you a limited, non-exclusive, non-transferable, non-sublicensable license during the Subscription Term to: Access and use the Service for your internal business purposes, and Use and store data exported from the Service (“Exported Data”) solely in connection with your internal sales, marketing, recruiting, and other B2B outreach activities. You may not resell, rent, lease, license, or otherwise distribute Exported Data as a stand-alone asset or use it to create, improve, or enrich a competing product, database, or service. [...] You expressly agree that your use of Exported Data will comply with all applicable laws and regulations, including, where applicable, GDPR, CCPA/CPRA, CAN-SPAM, CASL, TCPA, and PECR. [...] Data provided by the Service may not be used for determining any consumer’s eligibility for credit, insurance, employment, housing, tenant screening, or any other purpose regulated by the FCRA. [...] You agree not to use the Service or Exported Data to: Harass, stalk, phish, or otherwise abuse individuals, Promote or facilitate illegal activity, Distribute malware, viruses, or other harmful code, Misrepresent your identity or affiliation, including by impersonating AI Ark or another entity, or Resell or redistribute AI Ark data to third parties except as incidental to your internal business processes (e.g., sharing with your sales agents). [...] You must not: Use the Service or Exported Data to build, train, or improve any competing database, sales intelligence platform, lead generation tool, or similar service, Systematically retrieve data or other content from the Service to create or compile, directly or indirectly, a collection, compilation, database, or directory without our prior written consent.

## Plan

- Pay: $0
- You get: 100 credits a month
- Enough for: 200 calls a month
- Expires: rolls over month to month, up to 2× the monthly allowance

## Rate limit

- Per second: 5
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.60 s

## The call

- You send: search, Content-Type header "application/json"
- Method: POST
- Path: /v1/people/reverse-lookup

## About the plan

- Plan: Free Plan
- Who can get it: anyone 18 or over with authority to bind the company or organization the account is for, not in a US-embargoed country or on a US restricted-party list

## The 189 fields the plan's answer can hold

provider record ID, username, first name, last name, name, headline, current title, profile picture, cover image, birth date, about, LinkedIn URL, Twitter URL, GitHub URL, Facebook URL, location, short location, country, region, city, location coordinates, locale country, locale language, supported locales, languages, industry, schools, school ID, school name, school logo, school URL, school degree, school field of study, school grade, school start date, school end date, certifications, certification name, certification issuer, certification issuer ID, certification issuer URL, certification logo, certification URL, certification license, certification display source, certification issue date, certification expiration date, organizations, organization name, organization position, organization start date, organization end date, volunteering, volunteering title, volunteering company, volunteering cause, volunteering description, volunteering start date, volunteering end date, jobs, job company, job company ID, job company logo, job company URL, job company employee range, job company start date, job company end date, job title, job description, job employment type, job location, job start date, job end date, skills, creator, hiring, open to work, premium, verified, influencer, current department, current sub-department, current job function, current seniority, followers, connections, updated at, company ID, company name, company legal name, company description, company overview, company SEO description, company founded, company type, company industry, company employee count, company employee range, company logo, company website, company domain, company domain LTD, company LinkedIn URL, company Facebook URL, company Twitter URL, company Crunchbase URL, company revenue range, company revenue min, company revenue max, company funding type, company total funding, company last funding amount, company investor count, company funding count, company latest funding date, company funding rounds, company funding round date, company funding round amount, company funding round type, company funding round investors, company stock ticker, company stock URL, company IPO amount raised, company IPO valuation, company IPO share price, company IPO date, company exit count, company exits, company exit ID, company exit name, company exit image, company exit description, company acquisition count, company acquisitions, company acquisition ID, company acquisition name, company acquisition image, company acquisition role, company acquisition date, company investment count, company lead investment count, company investments, company investment ID, company investment name, company investment image, company investment is lead, company investment round ID, company investment round name, company investment round type, company investment round amount, company diversity investment count, company diversity investments, company diversity investment ID, company diversity investment name, company diversity investment image, company diversity investment round ID, company diversity investment round name, company diversity investment round type, company diversity investment round amount, company diversity investment spotlights, company diversity investment date, company IT spend, company HQ continent, company HQ country, company HQ state, company HQ city, company HQ street, company HQ postal code, company HQ address, company HQ coordinates, company locations, company location continent, company location country, company location city, company location street, company location postal code, company location address, company location coordinates, company technologies, company technology name, company technology category, company industries, company keywords, company hashtags, company languages, company sub-organizations, company SIC codes, company NAICS codes, company updated at

## AI Ark's plans (26)

- [AI Ark, free](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/free/llms.txt): $0.00 per 1,000, 92% complete, 30 days
- [AI Ark, $49 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/49-monthly/llms.txt): $4.90 per 1,000, 92% complete, 30 days
- [AI Ark, $79 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/79-monthly/llms.txt): $2.633 per 1,000, 92% complete, 30 days
- [AI Ark, $119 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/119-monthly/llms.txt): $1.983 per 1,000, 92% complete, 30 days
- [AI Ark, $219 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/219-monthly/llms.txt): $1.825 per 1,000, 92% complete, 30 days
- [AI Ark, $399 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/399-monthly/llms.txt): $1.663 per 1,000, 92% complete, 30 days
- [AI Ark, $649 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/649-monthly/llms.txt): $1.545 per 1,000, 92% complete, 30 days
- [AI Ark, $879 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/879-monthly/llms.txt): $1.465 per 1,000, 92% complete, 30 days
- [AI Ark, $1,249 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/1249-monthly/llms.txt): $1.388 per 1,000, 92% complete, 30 days
- [AI Ark, $1,949 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/1949-monthly/llms.txt): $1.299 per 1,000, 92% complete, 30 days
- [AI Ark, $2,449 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/2449-monthly/llms.txt): $1.224 per 1,000, 92% complete, 30 days
- [AI Ark, $4,449 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/4449-monthly/llms.txt): $1.112 per 1,000, 92% complete, 30 days
- [AI Ark, $9,999 monthly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/9999-monthly/llms.txt): $0.9999 per 1,000, 92% complete, 30 days
- [AI Ark, $470 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/470-yearly/llms.txt): $3.917 per 1,000, 92% complete, 30 days
- [AI Ark, $758 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/758-yearly/llms.txt): $2.106 per 1,000, 92% complete, 30 days
- [AI Ark, $1,142 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/1142-yearly/llms.txt): $1.586 per 1,000, 92% complete, 30 days
- [AI Ark, $2,102 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/2102-yearly/llms.txt): $1.46 per 1,000, 92% complete, 30 days
- [AI Ark, $3,830 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/3830-yearly/llms.txt): $1.33 per 1,000, 92% complete, 30 days
- [AI Ark, $6,230 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/6230-yearly/llms.txt): $1.236 per 1,000, 92% complete, 30 days
- [AI Ark, $8,438 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/8438-yearly/llms.txt): $1.172 per 1,000, 92% complete, 30 days
- [AI Ark, $11,990 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/11990-yearly/llms.txt): $1.11 per 1,000, 92% complete, 30 days
- [AI Ark, $18,710 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/18710-yearly/llms.txt): $1.039 per 1,000, 92% complete, 30 days
- [AI Ark, $23,510 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/23510-yearly/llms.txt): $0.98 per 1,000, 92% complete, 30 days
- [AI Ark, $42,710 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/42710-yearly/llms.txt): $0.89 per 1,000, 92% complete, 30 days
- [AI Ark, $95,990 yearly](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/95990-yearly/llms.txt): $0.80 per 1,000, 92% complete, 30 days
- [AI Ark, contact us](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/contact-us/llms.txt): 92% complete, 30 days

## AI Ark's calls (1)

- `POST /v1/people/reverse-lookup`: [AI Ark, free](https://datacircle.dev/cached-reverse-email-lookup-apis/ai-ark/free/llms.txt)

## AI Ark: cached reverse email lookup API alternatives

- [GetLeads, free, 1,000 credits, POST /api/v1/enrich/csv](https://datacircle.dev/cached-reverse-email-lookup-apis/getleads/free-1000-credits-post-api-v1-enrich-csv/llms.txt): $0.00 per 1,000, 23% complete, 1 month
- [MoltSets, free, Free, POST /reverse_email_lookup](https://datacircle.dev/cached-reverse-email-lookup-apis/moltsets/free-free-post-reverse-email-lookup/llms.txt): $0.00 per 1,000, 15% complete, 14 days
- [Tomba, free](https://datacircle.dev/cached-reverse-email-lookup-apis/tomba/free/llms.txt): $0.00 per 1,000, 15% complete, 1 month
- [StableEnrich, pay as you go](https://datacircle.dev/cached-reverse-email-lookup-apis/stableenrich/pay-as-you-go/llms.txt): $0.02 per 1,000, 0% complete, 1 day

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-22.

- https://ai-ark.com/faq
- https://ai-ark.com/llms.txt
- https://ai-ark.com/platform/enrichment-api
- https://ai-ark.com/pricing
- https://ai-ark.com/terms
- https://docs.ai-ark.com/
- https://docs.ai-ark.com/docs/ai-agents
- https://docs.ai-ark.com/docs/get-started
- https://docs.ai-ark.com/reference/people-reverse-lookup