# validTo, free, Get Started Free, POST /bulk: Email validation API

> Clean all new email addresses before they are added to your lists to improve your sender reputation and avoid email deliverability issues. Use our bulk email validation API to clean whole lists in a single call.

validTo's email validation API on its Get Started Free plan, $0.00 per 1,000 emails. 2 of the 6 key fields: Address, Its check.

- This page: https://datacircle.dev/validate-email-apis/validto/free-get-started-free-post-bulk
- Get it: https://validto.com/pricing.html
- Its API docs: https://validto.readme.io/reference/create-a-bulk-validation-list
- Sold by: validTo (https://validto.com)
- Checked: 2026-10-20

## In the answer

- Completeness: 33%
- Address: ✓
- Its check: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Per: result
- Also pays for: from the same budget: Single Validation API

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Clean all new email addresses before they are added to your lists to improve your sender reputation and avoid email deliverability issues. Use our bulk email validation API to clean whole lists in a single call.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 100 credits
- Enough for: 100 results, once
- Expires: never

## Rate limit

- Per second: 2
- Concurrent: 100

## Speed

- Answer: by polling

## The call

- You send: local_file. Optional: auto_verify
- Method: POST
- Path: /bulk

## About the plan

- Plan: Get Started Free
- Who can get it: anyone

## The 8 fields the plan's answer can hold

email, result, verified at, syntax error, free email, role, disposable, spamtrap

## validTo's plans (14)

- [validTo, free, Get Started Free, POST /bulk](https://datacircle.dev/validate-email-apis/validto/free-get-started-free-post-bulk/llms.txt): $0.00 per 1,000, 33% complete
- [validTo, $30 pack, 10,000 Verifications (Pay As You Go), POST /bulk](https://datacircle.dev/validate-email-apis/validto/30-pack-10000-verifications-pay-as-you-go-post-bulk/llms.txt): $3.00 per 1,000, 33% complete
- [validTo, $50 pack, 25,000 Verifications (Pay As You Go), POST /bulk](https://datacircle.dev/validate-email-apis/validto/50-pack-25000-verifications-pay-as-you-go-post-bulk/llms.txt): $2.00 per 1,000, 33% complete
- [validTo, $140 pack, 100,000 Verifications (Pay As You Go), POST /bulk](https://datacircle.dev/validate-email-apis/validto/140-pack-100000-verifications-pay-as-you-go-post-bulk/llms.txt): $1.40 per 1,000, 33% complete
- [validTo, $260 pack, 250,000 Verifications (Pay As You Go), POST /bulk](https://datacircle.dev/validate-email-apis/validto/260-pack-250000-verifications-pay-as-you-go-post-bulk/llms.txt): $1.04 per 1,000, 33% complete
- [validTo, $420 pack, 500,000 Verifications (Pay As You Go), POST /bulk](https://datacircle.dev/validate-email-apis/validto/420-pack-500000-verifications-pay-as-you-go-post-bulk/llms.txt): $0.84 per 1,000, 33% complete
- [validTo, $690 pack, 1 Million Verifications (Pay As You Go), POST /bulk](https://datacircle.dev/validate-email-apis/validto/690-pack-1-million-verifications-pay-as-you-go-post-bulk/llms.txt): $0.69 per 1,000, 33% complete
- [validTo, $24 monthly, 10,000 Verifications (Monthly), POST /bulk](https://datacircle.dev/validate-email-apis/validto/24-monthly-10000-verifications-monthly-post-bulk/llms.txt): $2.40 per 1,000, 33% complete
- [validTo, $40 monthly, 25,000 Verifications (Monthly), POST /bulk](https://datacircle.dev/validate-email-apis/validto/40-monthly-25000-verifications-monthly-post-bulk/llms.txt): $1.60 per 1,000, 33% complete
- [validTo, $100 monthly, 100,000 Verifications (Monthly), POST /bulk](https://datacircle.dev/validate-email-apis/validto/100-monthly-100000-verifications-monthly-post-bulk/llms.txt): $1.00 per 1,000, 33% complete
- [validTo, $200 monthly, 250,000 Verifications (Monthly), POST /bulk](https://datacircle.dev/validate-email-apis/validto/200-monthly-250000-verifications-monthly-post-bulk/llms.txt): $0.80 per 1,000, 33% complete
- [validTo, $320 monthly, 500,000 Verifications (Monthly), POST /bulk](https://datacircle.dev/validate-email-apis/validto/320-monthly-500000-verifications-monthly-post-bulk/llms.txt): $0.64 per 1,000, 33% complete
- [validTo, $540 monthly, 1 Million Verifications (Monthly), POST /bulk](https://datacircle.dev/validate-email-apis/validto/540-monthly-1-million-verifications-monthly-post-bulk/llms.txt): $0.54 per 1,000, 33% complete
- [validTo, contact us, Custom plan, POST /bulk](https://datacircle.dev/validate-email-apis/validto/contact-us-custom-plan-post-bulk/llms.txt): 33% complete

## validTo's calls (2)

- `POST /bulk`: [validTo, free, Get Started Free, POST /bulk](https://datacircle.dev/validate-email-apis/validto/free-get-started-free-post-bulk/llms.txt)
- `GET /verify`: [validTo, free, Get Started Free, GET /verify](https://datacircle.dev/validate-email-apis/validto/free-get-started-free-get-verify/llms.txt)

## Similar plans of other providers

- [Verifalia, free](https://datacircle.dev/validate-email-apis/verifalia/free/llms.txt): $0.00 per 1,000, 67% complete, live
- [VerifySwift, free, 20 daily credits](https://datacircle.dev/validate-email-apis/verifyswift/free-20-daily-credits/llms.txt): $0.00 per 1,000, 50% complete, live
- [Verimail, free](https://datacircle.dev/validate-email-apis/verimail/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [Verifly, free, 100 credits, POST /verify/bulk](https://datacircle.dev/validate-email-apis/verifly/free-100-credits-post-verify-bulk/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 2026-10-20.

- https://validto.com/email-validation-api.html
- https://validto.com/help/about-email-validation-api.html
- https://validto.com/help/billing.html
- https://validto.com/help/result-guide.html
- https://validto.com/policy-terms.html
- https://validto.com/pricing.html
- https://validto.readme.io/reference/api-quickstart.md
- https://validto.readme.io/reference/create-a-bulk-validation-list.md
- https://validto.readme.io/reference/download-a-bulk-validation-list.md
- https://validto.readme.io/reference/progress-of-a-bulk-validation-list.md
- https://validto.readme.io/reference/rate-limit.md
- https://validto.readme.io/reference/url-formats.md
- https://validto.readme.io/reference/verify-a-bulk-validation-list.md