# LeadSonar, $79 monthly: Email verification API

> Every email is SMTP-verified before you get it. Catch-all, disposable, and role-based addresses are flagged.

LeadSonar's Growth plan for the email verification API costs $0.316 per 1,000 emails. We check each provider's docs for 6 fields. LeadSonar's docs list 1: Deliverability.
We haven't run LeadSonar through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
We rank 4,207 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. This plan costs less per 1,000 emails than 90% of the 4,207 plans.
[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. 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), [looot](https://datacircle.dev/validate-email-apis/looot/top-up/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/leadsonar/79-monthly
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://leadsonar.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: Docs behind sign-up
- API key: with the plan, on https://leadsonar.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://leadsonar.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: LeadSonar (https://leadsonar.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 17%
- Deliverability: ✓

## Price

- $ per 1,000 emails: $0.316
- Per: call
- Billing: monthly
- $ a month: $79

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Employee email · Employee phone

## In their words

- Their pitch: Every email is SMTP-verified before you get it. Catch-all, disposable, and role-based addresses are flagged.

## Data

- Freshness: live
- What it checks: disposable domains, role addresses, mailbox
- Keep data: no period set while your account is open, on termination (8): "you must stop using data obtained through it except where you have an independent lawful basis to keep it"
- Use data: 4: You must: have and maintain your own lawful basis for contacting the people whose data you obtain, and comply with the GDPR, the ePrivacy rules and any other law that applies to your outreach, honour objections and opt-out requests you receive, promptly and across your systems, identify yourself accurately in the messages you send, and provide a working means to opt out, keep the data secure and limit access to those who need it. You must not: use the data to contact people in a consumer capacity, or for any purpose outside business-to-business communication, resell, redistribute or publish the data, or use it to build or enrich a competing database, use the data for harassment, deception, discrimination, or any unlawful purpose, scrape, bulk-export or otherwise extract the database beyond the credits and exports your plan allows, circumvent credit limits, rate limits or access controls, including by opening multiple accounts to obtain repeated free trials, interfere with the operation, security or integrity of the service.

## Plan

- Pay: $79
- You get: 250,000 credits a month
- Enough for: 250,000 calls a month

## The call

- You send: Docs behind sign-up

## About the plan

- Plan: Growth
- Who can get it: anyone

## The 4 fields the plan's answer can hold

status, catch-all, disposable, role address

## LeadSonar's plans (4)

- [LeadSonar, $79 monthly](https://datacircle.dev/validate-email-apis/leadsonar/79-monthly/llms.txt): $0.316 per 1,000, 17% complete, live
- [LeadSonar, $199 monthly](https://datacircle.dev/validate-email-apis/leadsonar/199-monthly/llms.txt): $0.249 per 1,000, 17% complete, live
- [LeadSonar, $499 monthly](https://datacircle.dev/validate-email-apis/leadsonar/499-monthly/llms.txt): $0.25 per 1,000, 17% complete, live
- [LeadSonar, contact us](https://datacircle.dev/validate-email-apis/leadsonar/contact-us/llms.txt): 17% complete, live

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

- Docs behind sign-up: [LeadSonar, $79 monthly](https://datacircle.dev/validate-email-apis/leadsonar/79-monthly/llms.txt)

## LeadSonar's APIs (5)

- [LeadSonar: email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/leadsonar/79-monthly/llms.txt)
- [LeadSonar: email finder API pricing, 4 plans](https://datacircle.dev/find-email-apis/leadsonar/79-monthly/llms.txt)
- [LeadSonar: phone finder API pricing, 4 plans](https://datacircle.dev/find-phone-apis/leadsonar/79-monthly/llms.txt)
- [LeadSonar: people search API pricing, 4 plans](https://datacircle.dev/people-search-apis/leadsonar/79-monthly/llms.txt)
- [LeadSonar: people enrichment API pricing, 4 plans](https://datacircle.dev/person-enrichment-apis/leadsonar/79-monthly/llms.txt)

## LeadSonar: email verification API alternatives

- [Sealch, $79 monthly, Monthly up to 250,000 / mo, POST /api/verify](https://datacircle.dev/validate-email-apis/sealch/79-monthly-monthly-up-to-250000-mo-post-api-verify/llms.txt): $0.316 per 1,000, 17% complete, live
- [Trumailo, $190 yearly](https://datacircle.dev/validate-email-apis/trumailo/190-yearly/llms.txt): $0.317 per 1,000, 50% complete, live (MX, provider: 24 hours)
- [Kanta, $1,142.40 yearly, All Access Scale (annual), POST /verify](https://datacircle.dev/validate-email-apis/kanta/1142-40-yearly-all-access-scale-annual-post-verify/llms.txt): $0.317 per 1,000, 33% complete, live
- [MillionVerifier, $1,599 pack, 5,000,000 verification credits, GET /api/v3](https://datacircle.dev/validate-email-apis/millionverifier/1599-pack-5000000-verification-credits-get-api-v3/llms.txt): $0.32 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 2026-11-08.

- https://leadsonar.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://leadsonar.io/agent.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://leadsonar.io/alternative/best-b2b-data-enrichment-tools.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://leadsonar.io/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://leadsonar.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://leadsonar.io/pricing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://leadsonar.io/terms.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing