# API League, free: Email verification API

> This email checker API allows you to validate an email address.

API League's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 4 of the 6 key fields we check: Address, Deliverability, Name, Company.
We rank 3,228 plans by price. [treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) is the cheapest paid plan per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.
[Disify's $9 monthly plan (/email)](https://datacircle.dev/validate-email-apis/disify/9-monthly-starter-post-email/llms.txt) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.
[MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt), [Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/499-monthly/llms.txt) and [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) are the best email verification API providers in our benchmark.

- This page: https://datacircle.dev/validate-email-apis/api-league/free
- [Best email verification API in 2026: providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://apileague.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://api.apileague.com/verify-email`
- API key: with the plan, on https://apileague.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://apileague.com/apis/email-verification-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: API League (https://apileague.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 67%
- Address: ✓
- Deliverability: ✓
- Name: ✓
- Company: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: 54 other calls

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: This email checker API allows you to validate an email address.

## Data

- Freshness: live
- What it checks: format, disposable domains, mailbox
- Keep data: no copy or storage of what it provides, with prior written permission, a cache of user-requested data for a maximum of 1 hour
- Use data: Non-Commercial Use, Backlink Required, a link to apileague.com on your website or application. You may use the data provided by the API League as part of your website, application, or other project, but you cannot use API League data to create a site or application meant to provide the same experience as API League [...] You may not create the impression that your site or application is endorsed by API League, nor may you use any API League brands/logos to promote your site/app without prior permission [...] You may not scrape the API League or in any way attempt to copy or store the information it provides, including any derived, hashed, or transformed data [...] You may not resell any data received via the API League. You may use the API League in order to compare the API League to API League competitors

## Plan

- Pay: $0
- You get: 50 tokens a day
- Enough for: 50 calls a day
- Expires: at midnight UTC, when the daily quota resets

## Rate limit

- Per second: 1
- Concurrent: 1
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.78 s

## The call

- You send: email
- Method: GET
- Path: /verify-email

## About the plan

- Plan: Free
- Who can get it: anyone

## The 12 fields the plan's answer can hold

email address, domain, first name, middle name, last name, full name, username, image, result, disposable, accept all, free provider

## API League's plans (4)

- [API League, free](https://datacircle.dev/validate-email-apis/api-league/free/llms.txt): $0.00 per 1,000, 67% complete, live
- [API League, $7 monthly](https://datacircle.dev/validate-email-apis/api-league/7-monthly/llms.txt): $0.467 per 1,000, 67% complete, live
- [API League, $39 monthly](https://datacircle.dev/validate-email-apis/api-league/39-monthly/llms.txt): $0.26 per 1,000, 67% complete, live
- [API League, $199 monthly](https://datacircle.dev/validate-email-apis/api-league/199-monthly/llms.txt): $0.133 per 1,000, 67% complete, live

## API League's calls for this API (1)

- `GET /verify-email`: [API League, free](https://datacircle.dev/validate-email-apis/api-league/free/llms.txt)

## API League's APIs (5)

- [API League: email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/api-league/free/llms.txt)
- [API League: image search API pricing, 4 plans](https://datacircle.dev/image-search-apis/api-league/free/llms.txt)
- [API League: news API pricing, 4 plans](https://datacircle.dev/news-apis/api-league/free/llms.txt)
- [API League: web scraping API pricing, 4 plans](https://datacircle.dev/web-scraping-apis/api-league/free/llms.txt)
- [API League: web search API pricing, 4 plans](https://datacircle.dev/web-search-apis/api-league/free/llms.txt)

## API League: email verification API alternatives

- [My Addr, top-up, from 5,000,000](https://datacircle.dev/validate-email-apis/my-addr/top-up-from-5000000/llms.txt): $0.13 per 1,000, 17% complete, live
- [ProWebLook, $6,799.20 monthly](https://datacircle.dev/validate-email-apis/proweblook/6799-20-monthly/llms.txt): $0.136 per 1,000, 33% complete, live
- [SMTPing, $499 yearly, Enterprise, POST /verify/bulk](https://datacircle.dev/validate-email-apis/smtping/499-yearly-enterprise-post-verify-bulk/llms.txt): $0.139 per 1,000, 50% complete, live
- [VerifySwift, $2,499.99 monthly, Daily Credits 600,000 a day](https://datacircle.dev/validate-email-apis/verifyswift/2499-99-monthly-daily-credits-600000-a-day/llms.txt): $0.139 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 2026-11-02.

- https://apileague.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apileague.com/apis/email-verification-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apileague.com/docs/quotas-and-rate-limiting?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apileague.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apileague.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing