# Aidenix, free: Email verification API

> Does the mailbox accept mail, and is the person still there. If they left, where they work now and their new work email.

Aidenix's Trial plan for the email verification API costs $0.00 per 1,000 emails. Aidenix's docs list 1 of the 6 fields on our checklist: Deliverability.
We haven't run Aidenix through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 4,085 plans for email verification APIs by price. Half the plans cost $1.998 or less per 1,000 emails. [See the best free email verification API plan.](https://datacircle.dev/best-email-verification-api.txt)
[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. [StableEnrich's pay-as-you-go plan](https://datacircle.dev/validate-email-apis/stableenrich/pay-as-you-go-pay-per-request-with-x402-or-mpp-post-api-minerva-validate-emails/llms.txt) costs the least for 10,000 emails a month: $0.05.
[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.
[pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt), [looot](https://datacircle.dev/validate-email-apis/looot/top-up/llms.txt) and [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/aidenix/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://aidenix.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: Docs behind sign-up
- API key: with the plan, on https://aidenix.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://aidenix.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Aidenix (https://aidenix.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 17%
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Does the mailbox accept mail, and is the person still there. If they left, where they work now and their new work email.

## Data

- What it checks: mailbox
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 75 results
- Expires: 14 days

## The call

- You send: Docs behind sign-up

## About the plan

- Plan: Trial
- Who can get it: anyone who signs up, no card

## The 5 fields the plan's answer can hold

status, still at company, new company, new job title, new work email

## Aidenix's plans (5)

- [Aidenix, free](https://datacircle.dev/validate-email-apis/aidenix/free/llms.txt): $0.00 per 1,000, 17% complete
- [Aidenix, $39 monthly](https://datacircle.dev/validate-email-apis/aidenix/39-monthly/llms.txt): 17% complete
- [Aidenix, $99 monthly](https://datacircle.dev/validate-email-apis/aidenix/99-monthly/llms.txt): 17% complete
- [Aidenix, $249 monthly](https://datacircle.dev/validate-email-apis/aidenix/249-monthly/llms.txt): 17% complete
- [Aidenix, contact us](https://datacircle.dev/validate-email-apis/aidenix/contact-us/llms.txt): 17% complete

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

- Docs behind sign-up: [Aidenix, free](https://datacircle.dev/validate-email-apis/aidenix/free/llms.txt)

## Aidenix's APIs (6)

- [Aidenix: company discovery API pricing, 5 plans](https://datacircle.dev/company-discovery-apis/aidenix/free/llms.txt)
- [Aidenix: company enrichment API pricing, 5 plans](https://datacircle.dev/company-enrichment-apis/aidenix/free/llms.txt)
- [Aidenix: tech stack API pricing, 5 plans](https://datacircle.dev/company-technology-apis/aidenix/free/llms.txt)
- [Aidenix: email verification API pricing, 5 plans](https://datacircle.dev/validate-email-apis/aidenix/free/llms.txt)
- [Aidenix: people search API pricing, 5 plans](https://datacircle.dev/people-search-apis/aidenix/free/llms.txt)
- [Aidenix: people enrichment API pricing, 5 plans](https://datacircle.dev/person-enrichment-apis/aidenix/free/llms.txt)

## Aidenix: email verification API alternatives

- [pingutil, free API key, POST /v1/verify](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt): $0.00 per 1,000, 50% complete, 30 days
- [MailTester Ninja, free, No token](https://datacircle.dev/validate-email-apis/mailtester-ninja/free-no-token/llms.txt): $0.00 per 1,000, 50% complete, live
- [Giggal, free trial, POST /v1/verify-batch](https://datacircle.dev/validate-email-apis/giggal/free-trial-post-v1-verify-batch/llms.txt): $0.00 per 1,000, 67% complete, live
- [Enrich.so, free, POST /email-validation](https://datacircle.dev/validate-email-apis/enrich-so/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [A-Leads, free](https://datacircle.dev/validate-email-apis/a-leads/free/llms.txt): $0.00 per 1,000, 50% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-07.

- https://aidenix.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://aidenix.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://aidenix.com/blog/new-sales-leaders-last-90-days?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://aidenix.com/blog/verified-sales-leads-already-left?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://aidenix.com/fit?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://aidenix.com/information/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://aidenix.com/mcp-demo?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://aidenix.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing