# Exellius Systems Inc, free: Email verification API

> Check whether an email address is valid, active, and deliverable before you send. Reduce bounce rates and protect your sender reputation.

Exellius Systems Inc's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 4 of the 6 key fields we check: Address, Deliverability, Confidence, Company.
The cheapest of the 1,712 plans we rank by price is [treg, top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt), at $0.00 per 1,000.

- This page: https://datacircle.dev/validate-email-apis/exellius-systems-inc/free
- [Best email verification API in 2026](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://www.exellius.com/pricing
- Its API docs: https://www.exellius.com/api-documentation#email-verifier
- Sold by: Exellius Systems Inc (https://www.exellius.com)
- Checked: 2026-10-25

## In the answer

- Completeness: 67%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓
- Company: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Per: call
- Also pays for: from the same budget: Find Person Email · Find Email by LinkedIn URL · Find Person Phone · Find Phone by LinkedIn URL · Find Emails by Company Domain · Find Phones by Company Domain · Enrich Person with Email · Enrich Company · Enrich Person by LinkedIn URL

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Check whether an email address is valid, active, and deliverable before you send. Reduce bounce rates and protect your sender reputation.

## Data

- Keep data: no limit
- Use data: Prohibited uses include: Spam or unlawful communications, Reselling Exellius data without written consent, Reverse engineering our databases, High-volume scraping (≥1000 queries/day without API) [...] Do not use bots or scrapers to access data

## Plan

- Pay: $0
- You get: 25 credits a month
- Enough for: 50 calls a month
- Expires: 3 months

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: GET
- Path: /api/v1/people/verify/email

## About the plan

- Plan: Free
- Who can get it: anyone 18 or over

## The 32 fields the plan's answer can hold

message, catch-all, did you mean, domain, free, email provider, username, block, disposable, email, final status, gibberish, blocked, connection failure, MX records, can receive email, disposable address, email quality score, has MX records, not a catch-all address, not a generic address, valid domain, valid format, regexp, score, SMTP check, SMTP server, status, status reason, timestamp, validation method, webmail

## Exellius Systems Inc's plans (8)

- [Exellius Systems Inc, free](https://datacircle.dev/validate-email-apis/exellius-systems-inc/free/llms.txt): $0.00 per 1,000, 67% complete
- [Exellius Systems Inc, $59 monthly](https://datacircle.dev/validate-email-apis/exellius-systems-inc/59-monthly/llms.txt): $4.917 per 1,000, 67% complete
- [Exellius Systems Inc, $119 monthly](https://datacircle.dev/validate-email-apis/exellius-systems-inc/119-monthly/llms.txt): $4.577 per 1,000, 67% complete
- [Exellius Systems Inc, $199 monthly](https://datacircle.dev/validate-email-apis/exellius-systems-inc/199-monthly/llms.txt): $3.98 per 1,000, 67% complete
- [Exellius Systems Inc, $528 yearly](https://datacircle.dev/validate-email-apis/exellius-systems-inc/528-yearly/llms.txt): $3.667 per 1,000, 67% complete
- [Exellius Systems Inc, $1,068 yearly](https://datacircle.dev/validate-email-apis/exellius-systems-inc/1068-yearly/llms.txt): $3.423 per 1,000, 67% complete
- [Exellius Systems Inc, $1,788 yearly](https://datacircle.dev/validate-email-apis/exellius-systems-inc/1788-yearly/llms.txt): $2.98 per 1,000, 67% complete
- [Exellius Systems Inc, contact us](https://datacircle.dev/validate-email-apis/exellius-systems-inc/contact-us/llms.txt): 67% complete

## Exellius Systems Inc's calls (1)

- `GET /api/v1/people/verify/email`: [Exellius Systems Inc, free](https://datacircle.dev/validate-email-apis/exellius-systems-inc/free/llms.txt)

## Exellius Systems Inc's APIs (7)

- [Exellius Systems Inc: cached company enrichment API pricing, 8 plans](https://datacircle.dev/cached-company-enrichment-apis/exellius-systems-inc/free/llms.txt)
- [Exellius Systems Inc: email verification API pricing, 8 plans](https://datacircle.dev/validate-email-apis/exellius-systems-inc/free/llms.txt)
- [Exellius Systems Inc: cached reverse email lookup API pricing, 8 plans](https://datacircle.dev/cached-reverse-email-lookup-apis/exellius-systems-inc/free/llms.txt)
- [Exellius Systems Inc: cached LinkedIn profile API pricing, 12 plans](https://datacircle.dev/cached-linkedin-profile-apis/exellius-systems-inc/free-free/llms.txt)
- [Exellius Systems Inc: cached email finder API pricing, 8 plans, GET /api/v1/people/search/linkedin/email](https://datacircle.dev/find-cached-email-apis/exellius-systems-inc/free-free-get-api-v1-people-search-linkedin-email/llms.txt)
- [Exellius Systems Inc: cached email finder API pricing, 8 plans, GET /api/v1/people/find/email](https://datacircle.dev/find-cached-email-apis/exellius-systems-inc/free-free-get-api-v1-people-find-email/llms.txt)
- [Exellius Systems Inc: cached people search API pricing, 8 plans, GET /api/v1/people/search/domain/email](https://datacircle.dev/cached-people-search-apis/exellius-systems-inc/free-free-get-api-v1-people-search-domain-email/llms.txt)
- [Exellius Systems Inc: cached people search API pricing, 8 plans, GET /api/v1/people/search/domain/phone](https://datacircle.dev/cached-people-search-apis/exellius-systems-inc/free-free-get-api-v1-people-search-domain-phone/llms.txt)
- [Exellius Systems Inc: cached people search API pricing, 8 plans, POST /api/v1/people/search](https://datacircle.dev/cached-people-search-apis/exellius-systems-inc/free-free-post-api-v1-people-search/llms.txt)
- [Exellius Systems Inc: cached people search API pricing, 8 plans, POST /api/v1/people/search/email](https://datacircle.dev/cached-people-search-apis/exellius-systems-inc/free-free-post-api-v1-people-search-email/llms.txt)
- [Exellius Systems Inc: cached people search API pricing, 8 plans, POST /api/v1/people/search/phone](https://datacircle.dev/cached-people-search-apis/exellius-systems-inc/free-free-post-api-v1-people-search-phone/llms.txt)
- [Exellius Systems Inc: cached phone finder API pricing, 8 plans, GET /api/v1/people/find/phone](https://datacircle.dev/find-cached-phone-apis/exellius-systems-inc/free-free-get-api-v1-people-find-phone/llms.txt)
- [Exellius Systems Inc: cached phone finder API pricing, 8 plans, GET /api/v1/people/search/linkedin/phone](https://datacircle.dev/find-cached-phone-apis/exellius-systems-inc/free-free-get-api-v1-people-search-linkedin-phone/llms.txt)

## Exellius Systems Inc: email verification API alternatives

- [Abstract API, $149 monthly](https://datacircle.dev/validate-email-apis/abstract-api/149-monthly/llms.txt): $2.98 per 1,000, 50% complete, live
- [Minelead, $149 monthly, Business, GET /validate](https://datacircle.dev/validate-email-apis/minelead/149-monthly/llms.txt): $2.98 per 1,000, 50% complete, live
- [BounceBan, $149 monthly, 50,000 Credits, Monthly subscription (15% off), POST /v1/verify/bulk](https://datacircle.dev/validate-email-apis/bounceban/149-monthly-50000-credits-monthly-subscription-15-off-post-v1-verify-bulk/llms.txt): $2.98 per 1,000, 50% complete, live
- [pipe0, $149 monthly, 5,000 credits a month, POST /v1/pipes/run/sync, Validate email (person:email:validate:millionverifier@1)](https://datacircle.dev/validate-email-apis/pipe0/149-monthly-5000-credits-a-month-post-v1-pipes-run-sync-validate-email-person-email-validate-millionverifier-1/llms.txt): $2.98 per 1,000, 17% 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 2026-10-25.

- https://rapidapi.com/exellius-exellius-systems-inc/api/exellius-b2b-intelligence-api1/pricing
- https://rapidapi.com/terms
- https://www.exellius.com/api
- https://www.exellius.com/api-documentation
- https://www.exellius.com/our-data
- https://www.exellius.com/pricing
- https://www.exellius.com/terms-and-conditions