# ApexVerify, free credits, POST /v1/unit: Email verification API

> Email verification API for real-time and bulk results processing by our industry-leading verification algorithms. Check & verify emails seamlessly with our API.

ApexVerify's email verification API on its Free credits plan. It costs $0.00 per 1,000 emails. It returns 3 of the 6 key fields we check: Address, Deliverability, Confidence.
We haven't run ApexVerify through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 3,886 plans for email verification APIs by price. Half the plans cost $1.998 per 1,000 emails or less.
[treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) is the cheapest paid plan per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.
[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.
[email-validation.org](https://datacircle.dev/validate-email-apis/email-validation-org/450-pack-1000000-credits-post-v1-validate/llms.txt), [pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) and [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/apexverify/free-credits-post-v1-unit
- [Email validation API: 180+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://apexverify.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://api.apexverify.com/v1/unit`
- API key: with the plan, on https://apexverify.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://documentation.apexverify.com/api-reference/apex-verify-api/unit/post-v-1-unit-post?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: ApexVerify (https://apexverify.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-05

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Batch Upload

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Email verification API for real-time and bulk results processing by our industry-leading verification algorithms. Check & verify emails seamlessly with our API.

## Data

- Freshness: live
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: You agree that you will: Only submit data that you are allowed to process and share under applicable law. Not use the Services to build, enhance, or append profiles about a person without lawful basis. Not use the Services for stalking, harassment, doxxing, discrimination, or any unlawful purpose. Not use the Services for credit, insurance, employment, tenant screening, or similar uses regulated by FCRA-like laws. Not submit children's personal data (under 13 in the US, under 16 in the EEA) unless you have verifiable parental consent and all required legal bases. Follow all telecom, anti-spam, and marketing laws (e.g., GDPR/ePrivacy, CAN-SPAM, TCPA, CASL, DNC rules). [...] We grant you a limited, non-exclusive, revocable license to use our API and SDKs to access the Services. [...] No reverse engineering or scraping. Do not attempt to access our systems in unauthorized ways or extract bulk data. Benchmarking. Public benchmarks or comparisons that identify ApexVerify are not allowed without our prior written consent. [...] You may not resell credits or access to the Services. You may not use the Services to provide a competing verification service without our written consent.

## Plan

- Pay: $0
- Expires: never, but lost if the account is deleted

## Rate limit

- Per second: 3
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: type "email", target_country, unit. Optional: target_audience, target_market_industry, target_objective, use_account_cache, max_account_cache_backoff, use_global_cache, max_global_cache_backoff
- Method: POST
- Path: /v1/unit

## About the plan

- Plan: Free credits
- Who can get it: anyone with an account

## The 12 fields the plan's answer can hold

request status, email, valid, wrong, unknown, quality, result, syntax error, free, role, disposable, catch-all

## ApexVerify's plans (13)

- [ApexVerify, free credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/free-credits-post-v1-unit/llms.txt): $0.00 per 1,000, 50% complete, live
- [ApexVerify, $5 pack, 1,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/5-pack-1000-credits-post-v1-unit/llms.txt): $5.00 per 1,000, 50% complete, live
- [ApexVerify, $21 pack, 5,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/21-pack-5000-credits-post-v1-unit/llms.txt): $4.20 per 1,000, 50% complete, live
- [ApexVerify, $36 pack, 10,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/36-pack-10000-credits-post-v1-unit/llms.txt): $3.60 per 1,000, 50% complete, live
- [ApexVerify, $75 pack, 25,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/75-pack-25000-credits-post-v1-unit/llms.txt): $3.00 per 1,000, 50% complete, live
- [ApexVerify, $125 pack, 50,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/125-pack-50000-credits-post-v1-unit/llms.txt): $2.50 per 1,000, 50% complete, live
- [ApexVerify, $220 pack, 100,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/220-pack-100000-credits-post-v1-unit/llms.txt): $2.20 per 1,000, 50% complete, live
- [ApexVerify, $325 pack, 250,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/325-pack-250000-credits-post-v1-unit/llms.txt): $1.30 per 1,000, 50% complete, live
- [ApexVerify, $550 pack, 500,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/550-pack-500000-credits-post-v1-unit/llms.txt): $1.10 per 1,000, 50% complete, live
- [ApexVerify, $700 pack, 1,000,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/700-pack-1000000-credits-post-v1-unit/llms.txt): $0.70 per 1,000, 50% complete, live
- [ApexVerify, $2,250 pack, 5,000,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/2250-pack-5000000-credits-post-v1-unit/llms.txt): $0.45 per 1,000, 50% complete, live
- [ApexVerify, $4,000 pack, 10,000,000 credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/4000-pack-10000000-credits-post-v1-unit/llms.txt): $0.40 per 1,000, 50% complete, live
- [ApexVerify, contact us, Contact sales, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/contact-us-contact-sales-post-v1-unit/llms.txt): 50% complete, live

## ApexVerify's calls (2)

- `POST /v1/batch`: [ApexVerify, free credits, POST /v1/batch](https://datacircle.dev/validate-email-apis/apexverify/free-credits-post-v1-batch/llms.txt)
- `POST /v1/unit`: [ApexVerify, free credits, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/free-credits-post-v1-unit/llms.txt)

## ApexVerify's APIs (2)

- [ApexVerify: email verification API pricing, 13 plans, POST /v1/unit](https://datacircle.dev/validate-email-apis/apexverify/free-credits-post-v1-unit/llms.txt)
- [ApexVerify: phone validation API pricing, 13 plans, POST /v1/batch](https://datacircle.dev/validate-phone-apis/apexverify/free-credits-post-v1-batch/llms.txt)
- [ApexVerify: phone validation API pricing, 13 plans, POST /v1/unit](https://datacircle.dev/validate-phone-apis/apexverify/free-credits-post-v1-unit/llms.txt)

## ApexVerify: email verification API alternatives

- [BillionVerify, $200 pack, Enterprise, POST /verify/bulk](https://datacircle.dev/validate-email-apis/billionverify/200-pack-enterprise-post-verify-bulk/llms.txt): $0.40 per 1,000, 67% complete, live
- [Sealch, $240 yearly, Yearly up to 50,000 / mo, POST /api/verify](https://datacircle.dev/validate-email-apis/sealch/240-yearly-yearly-up-to-50000-mo-post-api-verify/llms.txt): $0.40 per 1,000, 17% complete, live
- [HeroBounce, $200 monthly, Pro, POST /validation/single](https://datacircle.dev/validate-email-apis/herobounce/200-monthly-pro-post-validation-single/llms.txt): $0.40 per 1,000, 67% complete, live
- [Verimail, $1,000 pack](https://datacircle.dev/validate-email-apis/verimail/1000-pack/llms.txt): $0.40 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 2026-11-05.

- https://apexverify.com/features/email-verification-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apexverify.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apexverify.com/sales-terms-and-conditions?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apexverify.com/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://documentation.apexverify.com/api-reference/apex-verify-api/batch/upload-v-1-batch-post.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://documentation.apexverify.com/api-reference/apex-verify-api/unit/post-v-1-unit-post.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://documentation.apexverify.com/api-reference/api-rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://documentation.apexverify.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://documentation.apexverify.com/overview.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://documentation.apexverify.com/support?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing