# Accurate Append, free: Email verification API

> Parse email addresses into username and domain. Detects temporary email addresses, and verifies delivery status.

Accurate Append's email verification API on its Free Trial Key plan. It costs $0.00 per 1,000 emails. It returns 3 of the 6 key fields we check: Address, Deliverability, Company.
We haven't run Accurate Append through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 3,341 plans for email verification APIs by price. Half the plans cost $1.985 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.
[MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt), [Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/499-monthly/llms.txt) and [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/accurate-append/free
- [Email validation API: 160+ providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://accurateappend.com/pricing-beta/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://api.accurateappend.com/Services/V2/ValidateEmail/{licensekey}/`
- API key: with the plan, on https://accurateappend.com/pricing-beta/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://docs.accurateappend.com/reference/validateemail?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Accurate Append (https://accurateappend.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-02

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Parse email addresses into username and domain. Detects temporary email addresses, and verifies delivery status.

## Data

- Freshness: live
- What it checks: format, disposable domains, mailbox
- Keep data: no limit
- Use data: You are prohibited from using the information you learn from search results (1) to discriminate against any consumer, (2) for the purpose of considering a consumer’s eligibility for personal credit or insurance, employment, housing, or a government license or benefit, or (3) otherwise to affect a consumer’s economic or financial status or standing.

## Plan

- Pay: $0
- You get: 500 requests
- Enough for: 500 calls
- Expires: 30 days

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email, verifydeliverable, Content-Type header "application/json"
- Method: GET
- Path: /ValidateEmail/{licensekey}/

## About the plan

- Plan: Free Trial Key
- Who can get it: anyone, no credit card required

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

host, request date, request IP, transaction ID, email address in, user, domain, status code, status description, status type

## Accurate Append's plans (2)

- [Accurate Append, free](https://datacircle.dev/validate-email-apis/accurate-append/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [Accurate Append, contact us](https://datacircle.dev/validate-email-apis/accurate-append/contact-us/llms.txt): 50% complete, live

## Accurate Append's calls for this API (1)

- `GET /ValidateEmail/{licensekey}/`: [Accurate Append, free](https://datacircle.dev/validate-email-apis/accurate-append/free/llms.txt)

## Accurate Append's APIs (3)

- [Accurate Append: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/accurate-append/free/llms.txt)
- [Accurate Append: phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/accurate-append/free/llms.txt)
- [Accurate Append: reverse email lookup API pricing, 10 plans](https://datacircle.dev/reverse-email-lookup-apis/accurate-append/free/llms.txt)

## Accurate Append: 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
- [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
- [GetProspect, free, POST /v2/email-verifications](https://datacircle.dev/validate-email-apis/getprospect/free-free-post-v2-email-verifications/llms.txt): $0.00 per 1,000, 50% complete, live
- [Sealch, free, POST /api/verify](https://datacircle.dev/validate-email-apis/sealch/free-free-post-api-verify/llms.txt): $0.00 per 1,000, 17% complete, live
- [The Data Group, free](https://datacircle.dev/validate-email-apis/the-data-group/free/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 2026-11-02.

- https://accurateappend.com/fair-credit-reporting-act-statement/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://accurateappend.com/pricing-beta/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://accurateappend.com/terms-of-use/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.accurateappend.com/docs/appending-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.accurateappend.com/docs/mcp-overview?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.accurateappend.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.accurateappend.com/reference/validateemail?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing