# BigDataCloud, free: Email verification API

> Accepting an invalid email address at the point of entry creates problems downstream — bounced emails, failed OTP delivery, dirty CRM data, and in some cases fraudulent signups using disposable addresses. This API validates an email address before it reaches your database.

BigDataCloud's email verification API on its Base plan. It costs $0.00 per 1,000 emails. It returns 2 of the 6 key fields we check: Address, Deliverability.
We rank 2,467 plans by price. [treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) costs the least per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $26.95 per 1,000 emails when no provider answers.
[Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/149-monthly/llms.txt), [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) and [treg](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) are the best email verification API providers in our benchmark.

- This page: https://datacircle.dev/validate-email-apis/bigdatacloud/free
- [Best email verification API in 2026](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://www.bigdatacloud.com/pricing
- Request: `GET https://api-bdc.net/data/email-verify`
- API key: with the plan, on https://www.bigdatacloud.com/pricing
- Its API docs: https://www.bigdatacloud.com/phone-email-verification/email-verify-api
- Sold by: BigDataCloud (https://www.bigdatacloud.com)
- Checked: 2026-10-23

## In the answer

- Completeness: 33%
- Address: ✓
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Phone Number Validation API · Phone Number Validation by IP Address API

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Accepting an invalid email address at the point of entry creates problems downstream — bounced emails, failed OTP delivery, dirty CRM data, and in some cases fraudulent signups using disposable addresses. This API validates an email address before it reaches your database.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: Whenever you use our Services in any capacity you agree that you will not use them: in any manner prohibited by these terms and conditions or any other policy or set of restrictions published on our Website, for any unlawful purpose, at a frequency or in a way that is likely to make the system inaccessible to third parties, or for the purpose of creating, developing, refining or otherwise supporting a product or service that competes with our business, without our prior written permission [...] You may not at any time download, scrape or reverse engineer our services, API or Website.

## Plan

- Pay: $0
- You get: 1,000 requests a month
- Enough for: 1,000 calls a month

## Rate limit

- Concurrent: no limit
- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: Base
- Who can get it: anyone with an account, each organisation gets the Base Access of one account only

## The 6 fields the plan's answer can hold

email address, valid, syntax valid, mail server defined, known spammer domain, disposable

## BigDataCloud's plans (7)

- [BigDataCloud, free](https://datacircle.dev/validate-email-apis/bigdatacloud/free/llms.txt): $0.00 per 1,000, 33% complete, stored
- [BigDataCloud, $9.95 monthly](https://datacircle.dev/validate-email-apis/bigdatacloud/9-95-monthly/llms.txt): $0.995 per 1,000, 33% complete, stored
- [BigDataCloud, $79.90 monthly](https://datacircle.dev/validate-email-apis/bigdatacloud/79-90-monthly/llms.txt): $0.799 per 1,000, 33% complete, stored
- [BigDataCloud, $649 monthly](https://datacircle.dev/validate-email-apis/bigdatacloud/649-monthly/llms.txt): $0.649 per 1,000, 33% complete, stored
- [BigDataCloud, $99.50 yearly](https://datacircle.dev/validate-email-apis/bigdatacloud/99-50-yearly/llms.txt): $0.829 per 1,000, 33% complete, stored
- [BigDataCloud, $799 yearly](https://datacircle.dev/validate-email-apis/bigdatacloud/799-yearly/llms.txt): $0.666 per 1,000, 33% complete, stored
- [BigDataCloud, $6,490 yearly](https://datacircle.dev/validate-email-apis/bigdatacloud/6490-yearly/llms.txt): $0.541 per 1,000, 33% complete, stored

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

- `GET /data/email-verify`: [BigDataCloud, free](https://datacircle.dev/validate-email-apis/bigdatacloud/free/llms.txt)

## BigDataCloud's APIs (2)

- [BigDataCloud: email verification API pricing, 7 plans](https://datacircle.dev/validate-email-apis/bigdatacloud/free/llms.txt)
- [BigDataCloud: phone validation API pricing, 7 plans, GET /data/phone-number-validate](https://datacircle.dev/validate-phone-apis/bigdatacloud/free-base-get-data-phone-number-validate/llms.txt)
- [BigDataCloud: phone validation API pricing, 7 plans, GET /data/phone-number-validate-by-ip](https://datacircle.dev/validate-phone-apis/bigdatacloud/free-base-get-data-phone-number-validate-by-ip/llms.txt)

## BigDataCloud: email verification API alternatives

- [Emailit, $250 monthly, Business, POST /email-verifications, Verify an address](https://datacircle.dev/validate-email-apis/emailit/250-monthly-business-post-email-verifications-verify-an-address/llms.txt): $0.50 per 1,000, 67% complete, stored (has MX records: live)
- [ReefAPI, $300 yearly](https://datacircle.dev/validate-email-apis/reefapi/300-yearly/llms.txt): $0.50 per 1,000, 67% complete, stored
- [NexMailPro, $79 monthly, Business, POST /verify/email](https://datacircle.dev/validate-email-apis/nexmailpro/79-monthly-business-post-verify-email/llms.txt): $0.527 per 1,000, 50% complete, stored
- [Elastic Email, $2,750 monthly, Email Marketing Pro (1,000,000 contacts), POST /verifications/files](https://datacircle.dev/validate-email-apis/elastic-email/2750-monthly-email-marketing-pro-1000000-contacts-post-verifications-files/llms.txt): $0.55 per 1,000, 50% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-23.

- https://www.bigdatacloud.com/docs/article/are-there-limits-on-how-many-API-requests-I-can-make
- https://www.bigdatacloud.com/docs/article/how-is-the-billing-cycle-calculated
- https://www.bigdatacloud.com/docs/article/when-can-i-cancel-my-subscription
- https://www.bigdatacloud.com/docs/authentication
- https://www.bigdatacloud.com/phone-email-verification
- https://www.bigdatacloud.com/phone-email-verification/email-verify-api
- https://www.bigdatacloud.com/pricing
- https://www.bigdatacloud.com/terms-and-conditions