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

> Verify a single email address. Returns status, deliverability score, and detailed checks.

Sendburg's Free plan for the email verification API costs $0.00 per 1,000 emails. Sendburg's docs list 4 of the 6 fields on our checklist: Address, Deliverability, Confidence, Company.
Sendburg limits how many calls you get but gives no number.
We haven't run Sendburg through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
Half of the 4,039 plans we rank by price cost $1.999 per 1,000 emails or less. This plan and 59 others tie for the lowest price per 1,000 emails of the 4,039 plans. [See the best free email verification API plan.](https://datacircle.dev/best-email-verification-api.txt)
[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), [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) and [Giggal](https://datacircle.dev/validate-email-apis/giggal/39-pack-50000-credits-post-v1-verify/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/sendburg/free-post-api-verify-email
- [Email validation API: 200+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://send-burg.com/email-verifier?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://send-burg.com/api/verify-email`
- API key: not needed
- Its API docs: https://send-burg.com/email-verifier?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Sendburg (https://send-burg.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 67%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓
- Company: ✓

## 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: $0.00

## In their words

- Their pitch: Verify a single email address. Returns status, deliverability score, and detailed checks.

## Data

- Freshness: live
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: You may use the Service only for lawful B2B business purposes. You agree not to: Use contact data for consumer marketing, spam, or unsolicited personal communications, Resell, sublicense, or redistribute contact data to third parties without our written consent, Use the data to harass, stalk, or harm any individual, Scrape, crawl, harvest, cache, or systematically extract data from the Service by any means [...] (bulk data may be obtained only via the official Export feature and only within your plan's limits), Use any third-party tool, extension, plug-in, script, or automation to access, copy, cache, store, or export Service data outside the Service, Use the platform in violation of any applicable law, including anti-spam laws (CAN-SPAM, CASL, GDPR), Use the Service to build a competing database product, Share or publish contact data in any public forum, Circumvent any rate limits, access controls, or security features of the Service

## Plan

- Pay: $0

## Rate limit

- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email, Content-Type header "application/json"
- Method: POST
- Path: /api/verify-email

## About the plan

- Plan: Free
- Who can get it: anyone

## The 10 fields the plan's answer can hold

email address, domain, status, score, reason, syntax, MX host, disposable, role, catch-all

## Sendburg's plans (1)

- [Sendburg, free, POST /api/verify-email](https://datacircle.dev/validate-email-apis/sendburg/free-post-api-verify-email/llms.txt): $0.00 per 1,000, 67% complete, live

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

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

## Sendburg's APIs (4)

- [Sendburg: email verification API pricing, 1 plan, POST /api/verify-email](https://datacircle.dev/validate-email-apis/sendburg/free-post-api-verify-email/llms.txt)
- [Sendburg: company enrichment API pricing, 5 plans](https://datacircle.dev/company-enrichment-apis/sendburg/35-monthly/llms.txt)
- [Sendburg: email finder API pricing, 5 plans](https://datacircle.dev/find-email-apis/sendburg/35-monthly/llms.txt)
- [Sendburg: phone finder API pricing, 5 plans](https://datacircle.dev/find-phone-apis/sendburg/35-monthly/llms.txt)

## Sendburg: email verification API alternatives

- [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
- [KaijuVerifier, free, POST /api/v1/jobs, Submit an async bulk job with the SMTP probe](https://datacircle.dev/validate-email-apis/kaijuverifier/free-free-post-api-v1-jobs/llms.txt): $0.00 per 1,000, 50% complete, live
- [Opportify, free](https://datacircle.dev/validate-email-apis/opportify/free/llms.txt): $0.00 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 2026-11-07.

- https://send-burg.com/data-enrichment?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://send-burg.com/email-verifier?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://send-burg.com/legal/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://send-burg.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing