# Dilli Labs, free: Email verification API

> Check if an email address is valid in real-time using Dilli Email Validation API (DEVA). Stop spammers from submitting forms with fake email addresses, warn users of mistyped email address or clean up a mailing list using this API.

Dilli Labs' Free sign-up validations plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. Dilli Labs' docs list 1: Deliverability.
We ran Dilli Labs in [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt). We didn't score Dilli Labs' call. The call never checks the address with the email's mail server.
This plan is free. We rank 4,721 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. [734 email verification API plans on our price sheet are free.](https://datacircle.dev/best-email-verification-api.txt) [pingutil's free plan](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) scores highest of the free plans in our benchmark, at 82.3 out of 100.
[PayPerQ's pay-as-you-go plan](https://datacircle.dev/validate-email-apis/payperq/pay-as-you-go-pay-per-request-with-l402-post-api-minerva-validate-emails/llms.txt) costs the least for 10,000 emails a month: $0.06.
[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.
[Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/9-90-monthly-9-90-month-get-api-v1-validate/llms.txt), [pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) and [looot](https://datacircle.dev/validate-email-apis/looot/top-up/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/dilli-labs/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://www.dillilabs.com/products/email-validation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://deva.dillilabs.com/api/{API_KEY}/email/{address}`
- API key: with the plan, on https://www.dillilabs.com/products/email-validation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://www.dillilabs.com/products/email-validation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Dilli Labs (https://dillilabs.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 17%
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Check if an email address is valid in real-time using Dilli Email Validation API (DEVA). Stop spammers from submitting forms with fake email addresses, warn users of mistyped email address or clean up a mailing list using this API.

## Data

- What it checks: format, mail servers, disposable domains
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 100 requests
- Enough for: 100 calls, once

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: address. Optional: ip
- Method: GET
- Path: /api/{API_KEY}/email/{address}

## About the plan

- Plan: Free sign-up validations
- Who can get it: anyone at least 13 years old

## The only field the plan's answer can hold

valid

## Dilli Labs' plans (1)

- [Dilli Labs, free](https://datacircle.dev/validate-email-apis/dilli-labs/free/llms.txt): $0.00 per 1,000, 17% complete

## Dilli Labs' calls for this API (1)

- `GET /api/{API_KEY}/email/{address}`: [Dilli Labs, free](https://datacircle.dev/validate-email-apis/dilli-labs/free/llms.txt)

## Dilli Labs' APIs (2)

- [Dilli Labs Email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/dilli-labs/free/llms.txt)
- [Dilli Labs IP geolocation API pricing, 1 plan](https://datacircle.dev/ip-geolocation-apis/dilli-labs/contact-us/llms.txt)

## Dilli Labs: email verification API alternatives

[Dilli Labs alternatives: other email verification API providers by price](https://datacircle.dev/dilli-labs-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 emails.

- [Validemail.co, free, POST /api/v1/bulk](https://datacircle.dev/validate-email-apis/validemail-co/free-post-api-v1-bulk/llms.txt): $0.00 per 1,000, 67% complete, live
- [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
- [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
- [AtData, free](https://datacircle.dev/validate-email-apis/atdata/free/llms.txt): $0.00 per 1,000, 33% 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 2026-11-11.

- https://deva.dillilabs.com/register?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.dillilabs.com/dilli-email-validation-api-alternative-mailgun?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.dillilabs.com/products/email-validation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.dillilabs.com/products/ip-geo-location/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.dillilabs.com/products/ip-validation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.dillilabs.com/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing