# HiProspect, free: Email verification API

> hiprospect helps you validate email addresses so you can send emails with confidence

HiProspect's 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.
We rank 2,467 plans by price. [treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) costs the least per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $26.95 per 1,000 emails when no provider answers.
[Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/149-monthly/llms.txt), [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) and [treg](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) are the best email verification API providers in our benchmark.

- This page: https://datacircle.dev/validate-email-apis/hiprospect/free
- [Best email verification API in 2026](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://hiprospect.co.uk/pricing
- Request: `POST https://hiprospect.co.uk/api/v1/validate`
- API key: with the plan, on https://hiprospect.co.uk/pricing
- Its API docs: https://hiprospect.co.uk/Developers
- Sold by: HiProspect (https://hiprospect.co.uk)
- Checked: 2026-10-28

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Find · Bulk Domain

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: hiprospect helps you validate email addresses so you can send emails with confidence

## Data

- Freshness: live
- What it checks: format, mailbox
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: £0
- You get: 10 credits
- Enough for: 10 results, once

## Speed

- Answer: in the call

## The call

- You send: email addresses
- Method: POST
- Path: /validate

## About the plan

- Plan: Free
- Who can get it: anyone at least 18 years of age

## The 2 fields the plan's answer can hold

email address, status

## HiProspect's plans (5)

- [HiProspect, free](https://datacircle.dev/validate-email-apis/hiprospect/free/llms.txt): $0.00 per 1,000, 33% complete, live
- [HiProspect, £39.95 monthly](https://datacircle.dev/validate-email-apis/hiprospect/39-95-monthly/llms.txt): $53.273 per 1,000, 33% complete, live
- [HiProspect, £99.95 monthly](https://datacircle.dev/validate-email-apis/hiprospect/99-95-monthly/llms.txt): $26.657 per 1,000, 33% complete, live
- [HiProspect, £205 monthly](https://datacircle.dev/validate-email-apis/hiprospect/205-monthly/llms.txt): $18.224 per 1,000, 33% complete, live
- [HiProspect, contact us](https://datacircle.dev/validate-email-apis/hiprospect/contact-us/llms.txt): 33% complete, live

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

- `POST /validate`: [HiProspect, free](https://datacircle.dev/validate-email-apis/hiprospect/free/llms.txt)

## HiProspect's APIs (2)

- [HiProspect: email verification API pricing, 5 plans](https://datacircle.dev/validate-email-apis/hiprospect/free/llms.txt)
- [HiProspect: email finder API pricing, 5 plans](https://datacircle.dev/find-email-apis/hiprospect/free/llms.txt)

## HiProspect: email verification API alternatives

- [Tomba, $89 monthly, Growth, GET /email-verifier, Email Verifier](https://datacircle.dev/validate-email-apis/tomba/89-monthly/llms.txt): $17.80 per 1,000, 50% complete, live
- [Fiber AI, $900 monthly](https://datacircle.dev/validate-email-apis/fiber-ai/900-monthly/llms.txt): $18.00 per 1,000, 50% complete, live
- [Emelia, $37 monthly](https://datacircle.dev/validate-email-apis/emelia/37-monthly/llms.txt): $18.50 per 1,000, 33% complete, live
- [Dropcontact, €792 yearly](https://datacircle.dev/validate-email-apis/dropcontact/792-yearly/llms.txt): $18.567 per 1,000, 33% 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 2026-10-28.

- https://hiprospect.co.uk
- https://hiprospect.co.uk/Developers
- https://hiprospect.co.uk/TermsandConditions
- https://hiprospect.co.uk/pricing