# Bytemine, free: Email finder API

> Find and validate a work email from a name plus company domain, or from a LinkedIn URL alone. Returns the best deliverable address with confidence, pattern used, SMTP result, and catch all status. Billed only when a valid mailbox is found, guesses, misses, and cached repeats are free.

Bytemine's email finder API on its Free plan. It costs $0.00 per 1,000 emails. It returns 2 of the 10 key fields we check: Confidence, Catch-all domain.
We rank 1,256 plans by price. [ClearBounce's $3.20 monthly plan](https://datacircle.dev/find-email-apis/clearbounce/3-20-monthly/llms.txt) costs the least per 1,000 emails: as little as $0.00074. ClearBounce's $3.20 monthly plan covers up to 4,320,000 emails a month at no extra cost.
[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 to start 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), [OrbiSearch](https://datacircle.dev/find-email-apis/orbisearch/207-pack-enterprise-post-v1-email-lookup/llms.txt) and [DataForB2B](https://datacircle.dev/find-email-apis/dataforb2b/499-monthly-growth-post-enrich-profile-5000000-results-a-month/llms.txt) are the best email finder API providers in our benchmark.

- This page: https://datacircle.dev/find-email-apis/bytemine/free
- [Best email finder API in 2026](https://datacircle.dev/best-email-finder-api.txt)
- Get it: https://www.bytemine.ai/pricing
- Request: `POST https://bvjmtgaxijpyasjtaqiv.supabase.co/functions/v1/email-finder`
- API key: with the plan, on https://www.bytemine.ai/pricing
- Its API docs: https://app.bytemine.ai/api-reference
- Sold by: Bytemine (https://www.bytemine.ai)
- Checked: 2026-10-28

## In the answer

- Completeness: 20%
- Confidence: ✓
- Catch-all domain: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: no limit

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Find and validate a work email from a name plus company domain, or from a LinkedIn URL alone. Returns the best deliverable address with confidence, pattern used, SMTP result, and catch all status. Billed only when a valid mailbox is found, guesses, misses, and cached repeats are free.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: a limited, non-exclusive, non-transferable, non-sublicensable license to access and use the Services solely for internal business purposes including: Sales prospecting, Recruiting, Customer research, CRM enrichment [...] Customers may not: Resell, sublicense, or redistribute data obtained from the Services, Build a competing database or data brokerage service, Provide data to third parties outside their organization, Publish or distribute the data through APIs or public datasets, Reconstruct or replicate the platform database [...] Customers may not use the Services or data obtained through them to send spam, fraudulent or misleading communications, promote illegal goods, or engage in abusive or harassing outreach

## Plan

- Pay: $0
- You get: 100 credits a month
- Enough for: 100 calls a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call
- Median: 11.56 s

## The call

- You send: nothing required. Optional: last_name, first_name, linkedin_url, company_domain
- Method: POST
- Path: /email-finder

## About the plan

- Plan: Free
- Who can get it: business users only: 18 or over, acting on behalf of a company

## The 7 fields the plan's answer can hold

email, cached, status, catch all, confidence, SMTP result, credits charged

## Bytemine's plans (8)

- [Bytemine, free](https://datacircle.dev/find-email-apis/bytemine/free/llms.txt): $0.00 per 1,000, 20% complete, stored
- [Bytemine, pay as you go](https://datacircle.dev/find-email-apis/bytemine/pay-as-you-go/llms.txt): $10.00 per 1,000, 20% complete, stored
- [Bytemine, top-up from $0.50](https://datacircle.dev/find-email-apis/bytemine/top-up-from-0-50/llms.txt): $10.00 per 1,000, 20% complete, stored
- [Bytemine, $250 monthly](https://datacircle.dev/find-email-apis/bytemine/250-monthly/llms.txt): $25.00 per 1,000, 20% complete, stored
- [Bytemine, $500 monthly](https://datacircle.dev/find-email-apis/bytemine/500-monthly/llms.txt): $20.00 per 1,000, 20% complete, stored
- [Bytemine, $1,000 monthly](https://datacircle.dev/find-email-apis/bytemine/1000-monthly/llms.txt): $10.00 per 1,000, 20% complete, stored
- [Bytemine, $2,500 monthly](https://datacircle.dev/find-email-apis/bytemine/2500-monthly/llms.txt): $8.333 per 1,000, 20% complete, stored
- [Bytemine, contact us](https://datacircle.dev/find-email-apis/bytemine/contact-us/llms.txt): 20% complete, stored

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

- `POST /email-finder`: [Bytemine, free](https://datacircle.dev/find-email-apis/bytemine/free/llms.txt)

## Bytemine's APIs (14)

- [Bytemine: company discovery API pricing, 8 plans](https://datacircle.dev/company-discovery-apis/bytemine/free/llms.txt)
- [Bytemine: company enrichment API pricing, 8 plans](https://datacircle.dev/company-enrichment-apis/bytemine/free/llms.txt)
- [Bytemine: company funding API pricing, 8 plans](https://datacircle.dev/company-funding-apis/bytemine/free/llms.txt)
- [Bytemine: similar companies API pricing, 8 plans](https://datacircle.dev/similar-company-apis/bytemine/free/llms.txt)
- [Bytemine: tech stack API pricing, 8 plans](https://datacircle.dev/company-technology-apis/bytemine/free/llms.txt)
- [Bytemine: email finder API pricing, 8 plans](https://datacircle.dev/find-email-apis/bytemine/free/llms.txt)
- [Bytemine: job postings API pricing, 8 plans](https://datacircle.dev/job-posting-apis/bytemine/free/llms.txt)
- [Bytemine: people search API pricing, 8 plans](https://datacircle.dev/people-search-apis/bytemine/free/llms.txt)
- [Bytemine: reverse email lookup API pricing, 6 plans](https://datacircle.dev/reverse-email-lookup-apis/bytemine/free/llms.txt)
- [Bytemine: LinkedIn people search API pricing, 8 plans](https://datacircle.dev/linkedin-people-search-apis/bytemine/free/llms.txt)
- [Bytemine: LinkedIn post search API pricing, 8 plans](https://datacircle.dev/linkedin-post-search-apis/bytemine/free/llms.txt)
- [Bytemine: people enrichment API pricing, 8 plans, POST /bulk-contact-enrich](https://datacircle.dev/person-enrichment-apis/bytemine/free-post-bulk-contact-enrich/llms.txt)
- [Bytemine: people enrichment API pricing, 8 plans, POST /contacts/enrich](https://datacircle.dev/person-enrichment-apis/bytemine/free/llms.txt)
- [Bytemine: LinkedIn profile API pricing, 8 plans, POST /v1/enrich/linkedin](https://datacircle.dev/linkedin-profile-apis/bytemine/free-post-v1-enrich-linkedin/llms.txt)
- [Bytemine: LinkedIn profile API pricing, 8 plans, POST /v1/enrich/linkedin-profile](https://datacircle.dev/linkedin-profile-apis/bytemine/free-post-v1-enrich-linkedin-profile/llms.txt)
- [Bytemine: email verification API pricing, 8 plans, POST /fraud-check](https://datacircle.dev/validate-email-apis/bytemine/free-post-fraud-check/llms.txt)
- [Bytemine: email verification API pricing, 8 plans, POST /emails/verify/single](https://datacircle.dev/validate-email-apis/bytemine/free-post-emails-verify-single/llms.txt)

## Bytemine: email finder API alternatives

- [Argorant, $2,388 yearly, Pro 25,000 credits a month, billed annually, POST /api/v1/enrich](https://datacircle.dev/find-email-apis/argorant/2388-yearly-pro-25000-credits-a-month-billed-annually-post-api-v1-enrich/llms.txt): $7.96 per 1,000, 60% complete, stored
- [GetProspect, $399 monthly, Growth 50k, POST /v2/people/enrich](https://datacircle.dev/find-email-apis/getprospect/399-monthly-growth-50k-post-v2-people-enrich/llms.txt): $7.98 per 1,000, 60% complete, stored
- [B2B Enrich Search on Apify, $999 monthly](https://datacircle.dev/find-email-apis/b2b-enrich-search-on-apify/999-monthly/llms.txt): $8.00 per 1,000, 40% complete, stored
- [Findymail, $849 monthly](https://datacircle.dev/find-email-apis/findymail/849-monthly/llms.txt): $8.49 per 1,000, 20% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-28.

- https://agents.bytemine.ai/zcj/z1aqdugeqrj8/services/email-finder
- https://app.bytemine.ai/api-reference
- https://app.bytemine.ai/assets/index-Qgw78CwK.js
- https://bytemine.ai
- https://www.bytemine.ai/developers
- https://www.bytemine.ai/openapi.json
- https://www.bytemine.ai/pricing
- https://www.bytemine.ai/terms