# ByeBouncer, free, POST /api/v1/verify-email: Email verification API

> Check whether your addresses can receive email before a campaign. Find typos, disposable domains and server rejections.

ByeBouncer's Free plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. ByeBouncer's docs list 3: Address, Deliverability, Company.
In [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt), the best plan from ByeBouncer scores 46.2 out of 100. ByeBouncer ranks 116th of 249 providers.
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/byebouncer/free-post-api-v1-verify-email
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://www.byebouncer.com/en?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#precios
- Request: `POST https://api.byebouncer.com/api/v1/verify-email`
- API key: with the plan, on https://www.byebouncer.com/en?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#precios
- Its API docs: https://www.byebouncer.com/en/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: ByeBouncer (https://byebouncer.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 50%
- Address: ✓
- Deliverability: ✓
- Company: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: never
- Also pays for: from the same budget: Verify a single IP address · Validate and normalize a phone number · Validate a phone number locally (numbering plan only) · Look up carrier data for a phone number · Check the last observed network status of a phone line (HLR) · Verify a lead across email, IP and phone in one call · Create a bulk verification job

## Not found

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

## Catch-all

- $ per 1,000 emails at catch-all domains: $0.00

## In their words

- Their pitch: Check whether your addresses can receive email before a campaign. Find typos, disposable domains and server rejections.

## Data

- Freshness: 1 hour
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no time limit set, "They do not authorize creating an independent database"
- Use data: You may not use ByeBouncer to: Verify data obtained through breaches, unauthorized access or unlawful sources. Create spam lists or make unsolicited calls or send unsolicited SMS or messages in violation of the law. Track, harass, monitor or identify people without a legitimate basis. Attack networks, bypass technical limits or interfere with the service. Resell API output as a competing service without a written agreement. Use the service in violation of applicable sanctions or export controls. Use phone checks to facilitate pornography or adult entertainment, impersonation, phishing, fraud or abusive communications. [...] Number enumeration, enrichment, bulk extraction or data redistribution without a lawful purpose and the necessary rights are not permitted. [...] Results are made available only for the contracted validation purpose and within the rights available for each source, data field and territory. They do not authorize creating an independent database, reselling source data or reusing it for another purpose without the necessary rights.

## Plan

- Pay: $0
- You get: 500 credits
- Enough for: 500 calls, once

## Rate limit

- Per day: 100,000
- Per second: 2.78 (10,000 an hour)
- Batch: 1

## Speed

- Answer: in the call
- Median: 2.68 s

## The call

- You send: email. Optional: result_format
- Method: POST
- Path: /api/v1/verify-email

## About the plan

- Plan: Free
- Who can get it: anyone aged 18 or over with the legal capacity to contract

## The 31 fields the plan's answer can hold

email, normalized email, status, action, flagged, signals, domain, domain type, disposable, free provider, has MX, did you mean, cached, time taken, verified at, result format, execution status, deliverability, checks, attributes, observed at, catch-all, role account, SPF, DMARC, domain age, mail hosting, MX records, requires SMTPUTF8, credits charged, credits remaining

## ByeBouncer's plans (7)

- [ByeBouncer, free, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/free-post-api-v1-verify-email/llms.txt): $0.00 per 1,000, 50% complete, 1 hour
- [ByeBouncer, $10 pack, Pack XS, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/10-pack-pack-xs-post-api-v1-verify-email/llms.txt): $5.00 per 1,000, 50% complete, 1 hour
- [ByeBouncer, $45 pack, Pack S, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/45-pack-pack-s-post-api-v1-verify-email/llms.txt): $4.50 per 1,000, 50% complete, 1 hour
- [ByeBouncer, $105 pack, Pack M, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/105-pack-pack-m-post-api-v1-verify-email/llms.txt): $4.20 per 1,000, 50% complete, 1 hour
- [ByeBouncer, $200 pack, Pack L, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/200-pack-pack-l-post-api-v1-verify-email/llms.txt): $4.00 per 1,000, 50% complete, 1 hour
- [ByeBouncer, $380 pack, Pack XL, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/380-pack-pack-xl-post-api-v1-verify-email/llms.txt): $3.80 per 1,000, 50% complete, 1 hour
- [ByeBouncer, $700 pack, Pack XXL, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/700-pack-pack-xxl-post-api-v1-verify-email/llms.txt): $3.50 per 1,000, 50% complete, 1 hour

## ByeBouncer's calls for this API (2)

- `POST /api/v1/bulk`: [ByeBouncer, free, POST /api/v1/bulk](https://datacircle.dev/validate-email-apis/byebouncer/free-post-api-v1-bulk/llms.txt)
- `POST /api/v1/verify-email`: [ByeBouncer, free, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/free-post-api-v1-verify-email/llms.txt)

## ByeBouncer's APIs (2)

- [ByeBouncer Phone validation API pricing, 7 plans, live](https://datacircle.dev/validate-phone-apis/byebouncer/free-post-api-v1-verify-phone-live/llms.txt)
- [ByeBouncer Phone validation API pricing, 7 plans, carrier, Look up carrier data for a phone number](https://datacircle.dev/validate-phone-apis/byebouncer/free-post-api-v1-verify-phone-carrier/llms.txt)
- [ByeBouncer Phone validation API pricing, 7 plans, carrier, Look up carrier data for a phone number, full](https://datacircle.dev/validate-phone-apis/byebouncer/free-post-api-v1-verify-phone-carrier-look-up-carrier-data-for-a-phone-number-full/llms.txt)
- [ByeBouncer Phone validation API pricing, 7 plans, local](https://datacircle.dev/validate-phone-apis/byebouncer/free-post-api-v1-verify-phone-local/llms.txt)
- [ByeBouncer Email verification API pricing, 7 plans, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/free-post-api-v1-verify-email/llms.txt)

## ByeBouncer: email verification API alternatives

[ByeBouncer alternatives: every email verification API provider ranked](https://datacircle.dev/byebouncer-alternatives.txt)

We list ByeBouncer's cheapest paid plan first. Next we list other providers' plans closest to ByeBouncer in price per 1,000 emails. Each plan in the list gives live data or data at most an hour old.

- [ByeBouncer, $700 pack, Pack XXL, POST /api/v1/verify-email](https://datacircle.dev/validate-email-apis/byebouncer/700-pack-pack-xxl-post-api-v1-verify-email/llms.txt): $3.50 per 1,000, 50% complete, 1 hour
- [Mailerio, $17.50 pack, Pay as you go 5,000 emails, GET /v{version}/validate](https://datacircle.dev/validate-email-apis/mailerio/17-50-pack-pay-as-you-go-5000-emails-get-v-version-validate/llms.txt): $3.50 per 1,000, 67% complete, live
- [ClearBounce, $17.50 pack, 5,000 credits, POST /bulk/upload](https://datacircle.dev/validate-email-apis/clearbounce/17-50-pack-5000-credits-post-bulk-upload/llms.txt): $3.50 per 1,000, 67% complete, live
- [BounceBan, top-up from $175, 50,000 Credits, Pay-As-You-Go, POST /v1/verify/bulk](https://datacircle.dev/validate-email-apis/bounceban/top-up-from-175-50000-credits-pay-as-you-go-post-v1-verify-bulk/llms.txt): $3.50 per 1,000, 50% complete, live
- [Alibaba Cloud, $1,750 pack, 500,000, POST /, ValidateEmail](https://datacircle.dev/validate-email-apis/alibaba-cloud/1750-pack-500000-post-validateemail/llms.txt): $3.50 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 2026-11-11.

- https://www.byebouncer.com/downloads/openapi.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.byebouncer.com/en?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#precios
- https://www.byebouncer.com/en/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.byebouncer.com/en/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.byebouncer.com/en/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.byebouncer.com/en/verify-email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.byebouncer.com/en/verify-ip?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.byebouncer.com/en/verify-phone?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing