# LeadSonar, $79 monthly: Email finder API

> LeadSonar cascades through 18+ premium data vendors in real time, verifying each source until accurate emails [...] are found. No single provider catches everything, so our waterfall catches what others miss.

LeadSonar's Growth plan for the email finder API costs $0.316 per 1,000 emails. We check each provider's docs for 10 fields: Verification, Confidence, Catch-all domain, Where found and 6 more. LeadSonar's docs list none of the 10.
We haven't run LeadSonar through [our email finder API benchmark](https://datacircle.dev/best-email-finder-api.txt) yet.
We rank 1,738 plans for email finder APIs by price. Half the plans cost $20.00 or less per 1,000 emails. This plan costs less per 1,000 emails than 97% of the 1,738 plans.
[ClearBounce's $3.20 monthly plan](https://datacircle.dev/find-email-apis/clearbounce/3-20-monthly/llms.txt) is the cheapest paid plan per 1,000 emails. ClearBounce's $3.20 monthly plan charges nothing per call. You get as many emails as ClearBounce's rate limit allows. [StableEnrich's pay-as-you-go plan](https://datacircle.dev/find-email-apis/stableenrich/pay-as-you-go-pay-per-request-with-x402-or-mpp-post-api-minerva-enrich/llms.txt) costs the least for 10,000 emails a month: $1.00.
[ClearBounce's $4 pack](https://datacircle.dev/find-email-apis/clearbounce/4-pack/llms.txt) covers any number of emails. ClearBounce's $4 pack costs more up front than ClearBounce's $3.20 monthly plan.
[GetProspect](https://datacircle.dev/find-email-apis/getprospect/399-monthly-growth-50k-post-v2-email-find/llms.txt), [DiscoLike](https://datacircle.dev/find-email-apis/discolike/399-monthly-team-post-email-find/llms.txt) and [Icypeas](https://datacircle.dev/find-email-apis/icypeas/499-monthly-hypergrowth-100000-credits-a-month-post-email-search/llms.txt) are the best email finder API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/find-email-apis/leadsonar/79-monthly
- [Email finder API: the best of 100+ providers compared](https://datacircle.dev/best-email-finder-api.txt)
- Get it: https://leadsonar.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-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-finder-api-pricing
- Its API docs: https://leadsonar.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- Sold by: LeadSonar (https://leadsonar.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 0%

## Price

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

## Strengths

- Strengths: under $5 per 1,000, found live, nothing charged when not found

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: LeadSonar cascades through 18+ premium data vendors in real time, verifying each source until accurate emails [...] are found. No single provider catches everything, so our waterfall catches what others miss.

## Data

- Freshness: live
- What it checks: 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 only field the plan's answer can hold

email

## LeadSonar's plans (4)

- [LeadSonar, $79 monthly](https://datacircle.dev/find-email-apis/leadsonar/79-monthly/llms.txt): $0.316 per 1,000, 0% complete, live
- [LeadSonar, $199 monthly](https://datacircle.dev/find-email-apis/leadsonar/199-monthly/llms.txt): $0.249 per 1,000, 0% complete, live
- [LeadSonar, $499 monthly](https://datacircle.dev/find-email-apis/leadsonar/499-monthly/llms.txt): $0.25 per 1,000, 0% complete, live
- [LeadSonar, contact us](https://datacircle.dev/find-email-apis/leadsonar/contact-us/llms.txt): 0% complete, live

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

- Docs behind sign-up: [LeadSonar, $79 monthly](https://datacircle.dev/find-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 finder API alternatives

- [Mailsfinder, $19.99 monthly, Growth, POST /email/findEmail](https://datacircle.dev/find-email-apis/mailsfinder/19-99-monthly-growth-post-email-findemail/llms.txt): $0.30 per 1,000, 20% complete, live
- [Mart.dev, $3,750 pack](https://datacircle.dev/find-email-apis/mart-dev/3750-pack/llms.txt): $0.30 per 1,000, 70% complete, live
- [Getle, $199.90 monthly](https://datacircle.dev/find-email-apis/getle/199-90-monthly/llms.txt): $0.333 per 1,000, 0% complete, live
- [OrbiSearch, $999 monthly, Unlimited Professional, POST /v1/unlimited/bulk-lookup](https://datacircle.dev/find-email-apis/orbisearch/999-monthly-unlimited-professional-post-v1-unlimited-bulk-lookup/llms.txt): $0.444 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-finder-api-pricing
- https://leadsonar.io/agent.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://leadsonar.io/alternative/best-b2b-data-enrichment-tools.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://leadsonar.io/alternative/fullenrich.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://leadsonar.io/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://leadsonar.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://leadsonar.io/pricing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing
- https://leadsonar.io/terms.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-finder-api-pricing