# Addressfinder, free: Email verification API

> Ensure every email address you collect is genuine and able to receive messages.

Addressfinder's email verification API on its Free trial plan. It costs $0.00 per 1,000 emails. It returns 3 of the 6 key fields we check: Address, Deliverability, Company.
In [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt), Addressfinder's best plan scores 41.9 out of 100.
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/addressfinder/free
- [Email validation API: 160+ providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://addressfinder.com/nz/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://api.addressfinder.io/api/email/v1/verification`
- API key: with the plan, on https://addressfinder.com/nz/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://addressfinder.com/nz/docs/api/email-verification-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Addressfinder (https://addressfinder.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

## Charges

- Also pays for: from the same budget: Address Verification API · Phone Verification API

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## Catch-all

- $ per 1,000: $0.00

## In their words

- Their pitch: Ensure every email address you collect is genuine and able to receive messages.

## Data

- Freshness: live
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: You may use the Services and Plugins with websites that you own or control, with intranets or other business systems where included in Your Plan, and to verify data for your business purposes, subject to the applicable Data Terms. [...] You may access the APIs for the Service via the applicable Plugins and, if expressly included in Your Plan, via direct API calls to https://api.addressfinder.io. You are not permitted to access the APIs for the Service in any other way. [...] You must use the Services and Plugins for lawful purposes only and never misuse them. You must never copy, modify, distribute, resell, lease, transfer or sub-license, or create derivative works from, all or any part of the Services or Plugins. [...] You must never access or use the Services or any Plugin for any purpose related to building a product or service which competes with the Services or any Plugin or has similar features or functionality. [...] You must never use the Services or any Plugin in any way which may be perceived as damaging to our reputation or goodwill or may bring us into disrepute or harm.

## Plan

- Pay: NZ$0
- You get: 1,000 credits
- Enough for: 1,000 calls, once
- Expires: 30 days

## Rate limit

- Batch: 1

## Speed

- Answer: in the call
- Median: 4.37 s

## The call

- You send: email. Optional: domain, features
- Method: GET
- Path: /api/email/v1/verification

## About the plan

- Plan: Free trial
- Who can get it: anyone, for development and testing only (not production use), one Addressfinder account per business

## The 13 fields the plan's answer can hold

success, account, domain, email provider domain, verified email, verified, disposable, role, public, catch-all, not verified reason, not verified code, deliverability

## Addressfinder's plans (3)

- [Addressfinder, free](https://datacircle.dev/validate-email-apis/addressfinder/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [Addressfinder, NZ$55 monthly](https://datacircle.dev/validate-email-apis/addressfinder/nz-55-monthly/llms.txt): $62.303 per 1,000, 50% complete, live
- [Addressfinder, contact us](https://datacircle.dev/validate-email-apis/addressfinder/contact-us/llms.txt): 50% complete, live

## Addressfinder's calls for this API (1)

- `GET /api/email/v1/verification`: [Addressfinder, free](https://datacircle.dev/validate-email-apis/addressfinder/free/llms.txt)

## Addressfinder's APIs (2)

- [Addressfinder: email verification API pricing, 3 plans](https://datacircle.dev/validate-email-apis/addressfinder/free/llms.txt)
- [Addressfinder: phone validation API pricing, 3 plans](https://datacircle.dev/validate-phone-apis/addressfinder/free/llms.txt)

## Addressfinder: email verification API alternatives

- [Ideal Postcodes, £9 pack](https://datacircle.dev/validate-email-apis/ideal-postcodes/9-pack/llms.txt): $60.008 per 1,000, 17% complete, live
- [Tomba, $2,035 pack, Scale 200k, GET /email-verifier, Email Verifier, full](https://datacircle.dev/validate-email-apis/tomba/2035-pack-scale-200k-get-email-verifier-email-verifier-full/llms.txt): $61.05 per 1,000, 50% complete, live
- [DeBounce, top-up from $15, 5K credits, GET /v1/, Single email validation, full](https://datacircle.dev/validate-email-apis/debounce/top-up-from-15-5k-credits-get-v1-single-email-validation-full/llms.txt): $63.00 per 1,000, 50% complete, live
- [Loqate, €300 pack, Pay-as-you-go €300, GET /EmailValidation/Interactive/Validate/v2.00/json6.ws](https://datacircle.dev/validate-email-apis/loqate/300-pack-pay-as-you-go-300-get-emailvalidation-interactive-validate-v2-00-json6-ws-2/llms.txt): $63.017 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 2026-11-02.

- https://addressfinder.com/nz/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://addressfinder.com/nz/docs/api/email-verification-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://addressfinder.com/nz/docs/api/error-codes?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://addressfinder.com/nz/docs/api/overview?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://addressfinder.com/nz/docs/portal-and-account/billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://addressfinder.com/nz/email-verification?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://addressfinder.com/nz/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://addressfinder.com/nz/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing