# Ihsan Ullah Khan, free: Reverse email lookup API

> Search 1B+ B2B contacts and companies worldwide. Get verified emails, phone numbers, job titles, LinkedIn profiles, company details, revenue, employee count, and 70+ data fields.

Ihsan Ullah Khan's reverse email lookup API on its Basic plan, $0.00 per 1,000 people.

- This page: https://datacircle.dev/reverse-email-lookup-apis/ihsan-ullah-khan/free
- Get it: https://rapidapi.com/ipworld/api/b2b-contact-company-data-api/pricing
- Its API docs: https://rapidapi.com/ipworld/api/b2b-contact-company-data-api/playground/apiendpoint_83fde345-c97d-4ebf-8002-c5b7d2c75c32
- Sold by: Ihsan Ullah Khan (https://bestinfopoint.com)
- Checked: 2026-10-16

## Price

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

## Charges

- Per: call

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Search 1B+ B2B contacts and companies worldwide. Get verified emails, phone numbers, job titles, LinkedIn profiles, company details, revenue, employee count, and 70+ data fields.

## Data

- Freshness: stored
- Keep data: You may store and use the data in your internal systems
- Use data: You may use this API for legitimate business purposes, including sales prospecting, lead generation, CRM enrichment, market research, and recruiting. You may not use it for spamming, harassment, illegal activities, or any purpose that violates applicable data protection laws [...] Each API key is personal and non-transferable. Do not share your API key with third parties [...] You may not resell, redistribute, or sublicense the raw data as a standalone dataset or competing data product

## Plan

- Pay: $0
- You get: 200 requests a month
- Enough for: 200 calls a month
- Expires: unused credits do not roll over

## Rate limit

- Per second: 0.28
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email, page, size
- Method: GET
- Path: /persons/lookup

## About the plan

- Plan: Basic
- Who can get it: anyone 18 or over, not in Belarus, Cuba, Crimea, Donetsk, Iran, North Korea, Russia or Syria

## The 35 fields in the plan's answer

provider record ID, name, first name, middle name, last name, current title, job title role, current seniority, current department, job summary, profile URL, username, Facebook URL, Facebook handle, X URL, Twitter handle, GitHub URL, GitHub handle, current company, street address, address line 2, city, region, postal code, country, continent, metro area, skills, interests, about, gender, birth year, inferred salary, years of experience, connections

## Ihsan Ullah Khan's plans (4)

- [Ihsan Ullah Khan, free](https://datacircle.dev/reverse-email-lookup-apis/ihsan-ullah-khan/free/llms.txt): $0.00 per 1,000, stored
- [Ihsan Ullah Khan, $9.99 monthly](https://datacircle.dev/reverse-email-lookup-apis/ihsan-ullah-khan/9-99-monthly/llms.txt): $0.999 per 1,000, stored
- [Ihsan Ullah Khan, $49 monthly](https://datacircle.dev/reverse-email-lookup-apis/ihsan-ullah-khan/49-monthly/llms.txt): $0.122 per 1,000, stored
- [Ihsan Ullah Khan, $99 monthly](https://datacircle.dev/reverse-email-lookup-apis/ihsan-ullah-khan/99-monthly/llms.txt): $0.083 per 1,000, stored

## Ihsan Ullah Khan's calls (1)

- `GET /persons/lookup`: [Ihsan Ullah Khan, free](https://datacircle.dev/reverse-email-lookup-apis/ihsan-ullah-khan/free/llms.txt)

## Similar plans of other providers

- [B2B Enrich Search on Apify, free](https://datacircle.dev/reverse-email-lookup-apis/b2b-enrich-search-on-apify/free/llms.txt): $0.00 per 1,000, stored
- [Clearout, free](https://datacircle.dev/reverse-email-lookup-apis/clearout/free/llms.txt): $0.00 per 1,000, stored
- [CompanyEnrich, free](https://datacircle.dev/reverse-email-lookup-apis/companyenrich/free/llms.txt): $0.00 per 1,000, stored
- [Enrich.so, free](https://datacircle.dev/reverse-email-lookup-apis/enrich-so/free/llms.txt): $0.00 per 1,000, stored

## Sources

From each provider's own pricing page and docs. We read this row from these pages on 2026-10-16.

- https://bestinfopoint.com
- https://docs.rapidapi.com/docs/additional-request-headers
- https://docs.rapidapi.com/docs/hub-listing-monetize-tab.md
- https://rapidapi.com/ipworld/api/b2b-contact-company-data-api
- https://rapidapi.com/ipworld/api/b2b-contact-company-data-api/playground/apiendpoint_83fde345-c97d-4ebf-8002-c5b7d2c75c32
- https://rapidapi.com/ipworld/api/b2b-contact-company-data-api/pricing
- https://rapidapi.com/terms