# Lead Identity Check, free: Phone validation API

> Lead Identity Check can verify with over 95% accuracy whether or not a phone number, email address, or address belongs to a name. As well as if the phone number has seen recent activity.

Lead Identity Check's Free lead checks plan for the phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields. Lead Identity Check's docs list 1: Number.
We haven't run Lead Identity Check through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 1,339 plans for phone validation APIs by price. Half the plans cost $2.867 or less per 1,000 phones. [297 phone validation API plans on our price sheet are free.](https://datacircle.dev/best-phone-validation-api.txt) [Trestle](https://datacircle.dev/validate-phone-apis/trestle/free/llms.txt) has a free plan with 25 calls in total. Trestle is the best phone validation API in our benchmark.
[Linq's $260 monthly plan](https://datacircle.dev/validate-phone-apis/linq/260-monthly-pro-post-v3-capability-check-imessage/llms.txt) is the cheapest paid plan per 1,000 phones. Linq's phone validation API costs nothing beyond the plan price. [Keyronne's pay-as-you-go plan](https://datacircle.dev/validate-phone-apis/keyronne/pay-as-you-go/llms.txt) costs the least for 10,000 phones a month: $0.20.
[Trestle](https://datacircle.dev/validate-phone-apis/trestle/top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api/llms.txt), [Signal House](https://datacircle.dev/validate-phone-apis/signal-house/top-up-from-10/llms.txt) and [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/lead-identity-check/free
- [Phone validation API in 2026: the best of 60+ compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://leadidentitycheck.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://leadidentitycheck-node.vercel.app/main/lic/v1`
- API key: with the plan, on https://leadidentitycheck.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://leadidentitycheck.com/documentation/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Lead Identity Check (https://leadidentitycheck.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 11%
- Number: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Lead Identity Check can verify with over 95% accuracy whether or not a phone number, email address, or address belongs to a name. As well as if the phone number has seen recent activity.

## Data

- Keep data: no limit
- Use data: Users may not use the Services for any purpose other than to verify the accuracy of their leads [...] Users agree to keep all information provided by the Company confidential

## Plan

- Pay: $0
- You get: 20 requests
- Enough for: 20 calls

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: Filterkey header, Firstname, Lastname, Phone. Optional: Email, Address.Street, Address.City, Address.State, Address.Zipcode
- Method: POST
- Path: /main/lic/v1

## About the plan

- Plan: Free lead checks
- Who can get it: businesses verifying the accuracy of their leads

## The 8 fields the plan's answer can hold

master response, phone matches name %, phone seen recent activity, phone is mobile, email matches name %, email is valid, address matches name %, address is valid

## Lead Identity Check's plans (2)

- [Lead Identity Check, free](https://datacircle.dev/validate-phone-apis/lead-identity-check/free/llms.txt): $0.00 per 1,000, 11% complete
- [Lead Identity Check, pay as you go](https://datacircle.dev/validate-phone-apis/lead-identity-check/pay-as-you-go/llms.txt): $1.50 per 1,000, 11% complete

## Lead Identity Check's calls (1)

- `POST /main/lic/v1`: [Lead Identity Check, free](https://datacircle.dev/validate-phone-apis/lead-identity-check/free/llms.txt)

## Lead Identity Check's APIs (2)

- [Lead Identity Check Email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/lead-identity-check/free/llms.txt)
- [Lead Identity Check Phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/lead-identity-check/free/llms.txt)

## Lead Identity Check: phone validation API alternatives

[Lead Identity Check alternatives: other phone validation API providers by price](https://datacircle.dev/lead-identity-check-alternatives.txt)

We list Lead Identity Check's cheapest paid plan first. Next we list other providers' plans closest to Lead Identity Check in price per 1,000 phones.

- [Lead Identity Check, pay as you go](https://datacircle.dev/validate-phone-apis/lead-identity-check/pay-as-you-go/llms.txt): $1.50 per 1,000, 11% complete
- [ProWebLook, $15 pack](https://datacircle.dev/validate-phone-apis/proweblook/15-pack/llms.txt): $1.50 per 1,000, 67% complete, stored
- [ReefAPI, $15 monthly, Pro monthly, POST /phone-validate/v1/validate](https://datacircle.dev/validate-phone-apis/reefapi/15-monthly-pro-monthly-post-phone-validate-v1-validate/llms.txt): $1.50 per 1,000, 67% complete, stored
- [MobileValidate, top-up from $20, Top-up of $20 to $99.99, POST /jobs, Carrier lookup (bulk job)](https://datacircle.dev/validate-phone-apis/mobilevalidate/top-up-from-20-top-up-of-20-to-99-99-post-jobs-carrier-lookup-bulk-job/llms.txt): $1.50 per 1,000, 56% complete
- [Signalmash, $19 monthly](https://datacircle.dev/validate-phone-apis/signalmash/19-monthly/llms.txt): $1.50 per 1,000, 22% 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 2026-11-09.

- https://leadidentitycheck.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://leadidentitycheck.com/documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://leadidentitycheck.com/privacy-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://leadidentitycheck.com/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing