# ListPlus, free: Email verification API

> is the e-mail address deliverable (valid, invalid, catch_all, unknown)? Up to 25 addresses per call, answered at once.

ListPlus' Basic plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. ListPlus' docs list 2: Address, Deliverability.
In [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt), the best plan from ListPlus scores 51.2 out of 100. ListPlus ranks 95th of 239 providers.
This plan is free. We rank 4,767 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. [728 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.
[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. [StableEnrich's pay-as-you-go plan](https://datacircle.dev/validate-email-apis/stableenrich/pay-as-you-go-pay-per-request-with-x402-or-mpp-post-api-minerva-validate-emails/llms.txt) costs the least for 10,000 emails a month: $0.05.
[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, and costs less up front than treg's top-up from $10.
[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/listplus/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://listplus.ai/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://listplus.ai/a/v1/verify_email`
- API key: with the plan, on https://listplus.ai/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://listplus.ai/a?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: ListPlus (https://listplus.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 33%
- Address: ✓
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: 7 days
- Also pays for: from the same budget: enrich_records · search_people · load_companies · derive_column

## Overage

- Units cap: hard

## 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: is the e-mail address deliverable (valid, invalid, catch_all, unknown)? Up to 25 addresses per call, answered at once.

## Data

- What it checks: format, disposable domains, role addresses
- Keep data: no limit
- Use data: The customer may use third-party data retrieved via the Service for its own business purposes within these Terms and the legal requirements. [...] The customer is in particular prohibited from [...] reselling or passing on data obtained via the Service to third parties as its own database or data product, or using it to build a competing service

## Plan

- Pay: $0
- You get: 25 credits
- Enough for: about 83 calls, once
- Expires: never

## Rate limit

- Batch: 25

## Speed

- Answer: in the call
- Median: 0.34 s

## The call

- You send: emails. Optional: max_credits
- Method: POST
- Path: /verify_email

## About the plan

- Plan: Basic
- Who can get it: Businesses with a ListPlus account, no credit card

## The 2 fields the plan's answer can hold

email address, status

## ListPlus' plans (11)

- [ListPlus, free](https://datacircle.dev/validate-email-apis/listplus/free/llms.txt): $0.00 per 1,000, 33% complete
- [ListPlus, $6 pack](https://datacircle.dev/validate-email-apis/listplus/6-pack/llms.txt): $12.00 per 1,000, 33% complete
- [ListPlus, $9 pack](https://datacircle.dev/validate-email-apis/listplus/9-pack/llms.txt): $18.00 per 1,000, 33% complete
- [ListPlus, $18 pack](https://datacircle.dev/validate-email-apis/listplus/18-pack/llms.txt): $10.80 per 1,000, 33% complete
- [ListPlus, $30 pack](https://datacircle.dev/validate-email-apis/listplus/30-pack/llms.txt): $18.00 per 1,000, 33% complete
- [ListPlus, $35 pack](https://datacircle.dev/validate-email-apis/listplus/35-pack/llms.txt): $10.50 per 1,000, 33% complete
- [ListPlus, $60 pack](https://datacircle.dev/validate-email-apis/listplus/60-pack/llms.txt): $18.00 per 1,000, 33% complete
- [ListPlus, $115 pack](https://datacircle.dev/validate-email-apis/listplus/115-pack/llms.txt): $9.857 per 1,000, 33% complete
- [ListPlus, $199 pack](https://datacircle.dev/validate-email-apis/listplus/199-pack/llms.txt): $17.057 per 1,000, 33% complete
- [ListPlus, $79 monthly](https://datacircle.dev/validate-email-apis/listplus/79-monthly/llms.txt): $10.50 per 1,000, 33% complete
- [ListPlus, $790 yearly](https://datacircle.dev/validate-email-apis/listplus/790-yearly/llms.txt): $10.50 per 1,000, 33% complete

## ListPlus' calls for this API (1)

- `POST /verify_email`: [ListPlus, free](https://datacircle.dev/validate-email-apis/listplus/free/llms.txt)

## ListPlus' APIs (5)

- [ListPlus Company discovery API pricing, 11 plans](https://datacircle.dev/company-discovery-apis/listplus/free/llms.txt)
- [ListPlus Email verification API pricing, 11 plans](https://datacircle.dev/validate-email-apis/listplus/free/llms.txt)
- [ListPlus Email finder API pricing, 11 plans](https://datacircle.dev/find-email-apis/listplus/free/llms.txt)
- [ListPlus Phone finder API pricing, 11 plans](https://datacircle.dev/find-phone-apis/listplus/free/llms.txt)
- [ListPlus People search API pricing, 11 plans](https://datacircle.dev/people-search-apis/listplus/free/llms.txt)

## ListPlus: email verification API alternatives

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

We list ListPlus' cheapest paid plan first. Next we list other providers' plans closest to ListPlus in price per 1,000 emails.

- [ListPlus, $115 pack](https://datacircle.dev/validate-email-apis/listplus/115-pack/llms.txt): $9.857 per 1,000, 33% complete
- [MSG91, ₹7,500 monthly](https://datacircle.dev/validate-email-apis/msg91/7500-monthly/llms.txt): $9.872 per 1,000, 33% complete
- [Email Hippo, $9.88 monthly, MORE 1,000 Edition 2 (Monthly)](https://datacircle.dev/validate-email-apis/email-hippo/9-88-monthly-more-1000-edition-2-monthly/llms.txt): $9.88 per 1,000, 67% complete, 30 days
- [GetProspect, $99 monthly, Growth 5k, POST /v2/email-verifications](https://datacircle.dev/validate-email-apis/getprospect/99-monthly-growth-5k-post-v2-email-verifications/llms.txt): $9.90 per 1,000, 50% complete, live
- [ZeroBounce, $99 monthly, ZeroBounce ONE, 10,000 credits a month, POST /v2/validatebatch](https://datacircle.dev/validate-email-apis/zerobounce/99-monthly-zerobounce-one-10000-credits-a-month-post-v2-validatebatch/llms.txt): $9.90 per 1,000, 83% complete, live
- [QuantAgentShop, pay as you go](https://datacircle.dev/validate-email-apis/quantagentshop/pay-as-you-go/llms.txt): $9.90 per 1,000, 50% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

- https://listplus.ai/a?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/en/help/ai-agents-api/agent-keys.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/buying-credits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/credits-explained?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/price-list?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/refunds?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/en/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/llms-full.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://listplus.ai/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing