# graph8, free: Cached email verification API

> Verify a single email address and check its deliverability status.

graph8's cached email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 2 of the 6 key fields we check: Address, Deliverability.

- This page: https://datacircle.dev/cached-email-validation-apis/graph8/free
- Get it: https://graph8.com/build/pricing
- Its API docs: https://docs.graph8.com/developers/enrichment/#verify-email
- Sold by: graph8 (https://graph8.com)
- Checked: 2026-10-22

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: POST /enrichment/enrich · POST /sequences/{id}/contacts · POST /campaigns/{id}/launch · POST /appointments/bookings

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Verify a single email address and check its deliverability status.

## Data

- Freshness: stored
- Keep data: during the Subscription Period [...] Customer will: (a) cease all use of the Data Products and, upon request, return or destroy all copies [...] Customer may retain and perpetually use any B2B Contact Data [...] that was (i) identified and used for a specific campaign, (ii) for which any applicable Fees or credits were paid by Customer, and (iii) exported to Customer's data warehouse instance
- Use data: solely for Customer's internal business purposes during the Subscription Period [...] Customer may use the Data Products for marketing, sales, and other business activities as explicitly permitted by this Agreement. b) Customer is not allowed to resell the Data Products or provide the Data Products to third parties [...] Customer shall not sell, rent, lease, sublicense, distribute, or otherwise provide the Data Products to any third party. Reselling of data in any form is strictly prohibited [...] Customer must comply with all applicable data protection laws and regulations in relation to the use of the Data Products, including obtaining necessary consents from individuals where required. b) Customer is required to follow GDPR regulations, and in the US, CCPA and other required regulations on a federal and state level [...] b) Data should only be exported to authorized and vetted third-party connections, including Snowflake and other data pipeline providers. Customer should check with Provider for approved vendors. c) Customer shall maintain the confidentiality of the Data Products and shall not disclose them to any third party except as necessary for its permitted use under this Agreement

## Plan

- Pay: $0
- You get: 250 credits a month

## Rate limit

- Per second: 16.67
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.82 s

## The call

- You send: email
- Method: POST
- Path: /enrichment/verify-email

## About the plan

- Plan: Free
- Who can get it: verified companies with a work email (personal addresses such as Gmail are not accepted), for internal business purposes

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

email, status, sub-status, is valid

## graph8's plans (5)

- [graph8, free](https://datacircle.dev/cached-email-validation-apis/graph8/free/llms.txt): $0.00 per 1,000, 33% complete, stored
- [graph8, $99 monthly](https://datacircle.dev/cached-email-validation-apis/graph8/99-monthly/llms.txt): 33% complete, stored
- [graph8, $499 monthly](https://datacircle.dev/cached-email-validation-apis/graph8/499-monthly/llms.txt): 33% complete, stored
- [graph8, $948 yearly](https://datacircle.dev/cached-email-validation-apis/graph8/948-yearly/llms.txt): 33% complete, stored
- [graph8, $4,788 yearly](https://datacircle.dev/cached-email-validation-apis/graph8/4788-yearly/llms.txt): 33% complete, stored

## graph8's calls (1)

- `POST /enrichment/verify-email`: [graph8, free](https://datacircle.dev/cached-email-validation-apis/graph8/free/llms.txt)

## graph8: cached email verification API alternatives

- [KaijuVerifier, free, Free, POST /api/v1/jobs](https://datacircle.dev/cached-email-validation-apis/kaijuverifier/free-free-post-api-v1-jobs/llms.txt): $0.00 per 1,000, 50% complete, stored
- [Strale, free, trial credits, POST /v1/do, Bulk Email Validation](https://datacircle.dev/cached-email-validation-apis/strale/free-trial-credits-post-v1-do-bulk-email-validation/llms.txt): $0.00 per 1,000, 50% complete, stored
- [APIVerve, free](https://datacircle.dev/cached-email-validation-apis/apiverve/free/llms.txt): $0.00 per 1,000, 50% complete, stored (MX valid, MX record, null MX, can receive mail, has SPF, has DMARC: live)
- [Botoi, free, Free, POST /v1/disposable-email/check](https://datacircle.dev/cached-email-validation-apis/botoi/free-free-post-v1-disposable-email-check/llms.txt): $0.00 per 1,000, 50% complete, stored
- [FirstSales, free](https://datacircle.dev/cached-email-validation-apis/firstsales/free/llms.txt): $0.00 per 1,000, 33% 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 2026-10-22.

- https://be.graph8.com/api/v1/openapi.json
- https://graph8.com
- https://graph8.com/build/docs/api-faq
- https://graph8.com/build/docs/enrichment
- https://graph8.com/build/docs/mcp-faq
- https://graph8.com/build/docs/rate-limits
- https://graph8.com/build/pricing
- https://graph8.com/terms