# MailTester Ninja, $23.99 monthly: Email finder API

> Finds the work email address of a person from their first name, last name and company domain.

MailTester Ninja's email finder API on its Pro plan. It returns 3 of the 10 key fields we check: Confidence, Name, Company.
We rank 1,373 plans by price. [ClearBounce's $3.20 monthly plan](https://datacircle.dev/find-email-apis/clearbounce/3-20-monthly/llms.txt) costs the least per 1,000 emails: as little as $0.00074. ClearBounce's $3.20 monthly plan covers up to 4,320,000 emails a month at no extra cost.
[ClearBounce's $4 pack](https://datacircle.dev/find-email-apis/clearbounce/4-pack/llms.txt) covers any number of emails. ClearBounce's $4 pack costs more up front than ClearBounce's $3.20 monthly plan.
[GetProspect](https://datacircle.dev/find-email-apis/getprospect/399-monthly-growth-50k-post-v2-email-find/llms.txt), [DiscoLike](https://datacircle.dev/find-email-apis/discolike/399-monthly-team-post-email-find/llms.txt) and [Icypeas](https://datacircle.dev/find-email-apis/icypeas/499-monthly-hypergrowth-100000-credits-a-month-post-email-search/llms.txt) are the best email finder API providers in our benchmark.

- This page: https://datacircle.dev/find-email-apis/mailtester-ninja/23-99-monthly
- [Best email finder API in 2026: providers compared](https://datacircle.dev/best-email-finder-api.txt)
- Get it: https://mailtester.ninja/verify-emails-unlimited/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- Request: `GET https://happy.mailtester.ninja/find`
- API key: with the plan, on https://mailtester.ninja/verify-emails-unlimited/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- Its API docs: https://mailtester.ninja/api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing#finder-api
- Sold by: MailTester Ninja (https://mailtester.ninja?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 30%
- Confidence: ✓
- Name: ✓
- Company: ✓

## Price

- Billing: monthly
- $ a month: $23.99

## Strengths

- Strengths: found live

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Finds the work email address of a person from their first name, last name and company domain.

## Data

- Freshness: live
- What it checks: mail servers, disposable domains, mailbox
- Keep data: no limit
- Use data: You may use the Service only to verify email addresses that you have a legitimate reason to check [...] You must comply with all applicable laws, including anti-spam and data-protection laws (such as the UK GDPR, EU GDPR and the US CAN-SPAM Act). You must not, and must not allow anyone else to: Directory harvesting / dictionary attacks — submitting generated, guessed, sequential or otherwise fabricated addresses in order to discover which ones exist on a domain. Verify purchased, scraped, rented or otherwise non-consented email lists, or use the Service to enable the sending of unsolicited bulk email (spam), phishing or malware. Use the Service to harass, defraud, or target individuals, or for any unlawful, deceptive or harmful purpose. Circumvent, disable or exceed rate limits or plan quotas, share, resell, sublicense or redistribute the Service or your API key without our written consent. Reverse-engineer, scrape, or attempt to derive the underlying methods of the Service, or interfere with its normal operation.

## Plan

- Pay: $23.99

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: first, last, domain. Optional: timeout
- Method: GET
- Path: /find

## About the plan

- Plan: Pro
- Who can get it: anyone at least 18 years old, or the age of majority in their jurisdiction

## The 18 fields the plan's answer can hold

status, message, found, email, format, confidence, guess, first name, last name, domain, mail server, permutations, tested addresses, connections, daily limit, rate, duration, reason

## MailTester Ninja's plans (2)

- [MailTester Ninja, $23.99 monthly](https://datacircle.dev/find-email-apis/mailtester-ninja/23-99-monthly/llms.txt): 30% complete, live
- [MailTester Ninja, $39.99 monthly](https://datacircle.dev/find-email-apis/mailtester-ninja/39-99-monthly/llms.txt): 30% complete, live

## MailTester Ninja's calls for this API (1)

- `GET /find`: [MailTester Ninja, $23.99 monthly](https://datacircle.dev/find-email-apis/mailtester-ninja/23-99-monthly/llms.txt)

## MailTester Ninja's APIs (2)

- [MailTester Ninja: email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/mailtester-ninja/free-no-token/llms.txt)
- [MailTester Ninja: email finder API pricing, 2 plans](https://datacircle.dev/find-email-apis/mailtester-ninja/23-99-monthly/llms.txt)

## MailTester Ninja: email finder API alternatives

- [Databar, $99 monthly, Build, POST /v1/waterfalls/{waterfall_identifier}/run](https://datacircle.dev/find-email-apis/databar/99-monthly/llms.txt): 10% complete, live
- [Kaspr, $65 monthly](https://datacircle.dev/find-email-apis/kaspr/65-monthly/llms.txt): 40% complete, live
- [Clay, $185 monthly](https://datacircle.dev/find-email-apis/clay/185-monthly/llms.txt): 0% 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 2026-11-02.

- https://mailtester.ninja/api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://mailtester.ninja/free-email-verification-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://mailtester.ninja/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://mailtester.ninja/pricing.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://mailtester.ninja/terms-of-use/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://mailtester.ninja/verify-emails-unlimited/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing