# LOX24, free: Phone validation API

> Region and number type, and whether the format and number are plausible.

LOX24's Starting credit plan for the phone validation API costs $0.00 per 1,000 phones. LOX24's docs list none of the 9 fields on our checklist: Number, Formats, Validity, Type and 5 more.
We haven't run LOX24 through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 1,148 plans for phone validation APIs by price. Half the plans cost $2.991 per 1,000 phones or less. [See the best free phone validation API plan.](https://datacircle.dev/best-phone-validation-api.txt)
[GuGuData's CNY 124 (about $19) monthly plan](https://datacircle.dev/validate-phone-apis/gugudata/cny-124-monthly/llms.txt) is the cheapest paid plan per 1,000 phones. GuGuData's CNY 124 (about $19) monthly plan charges nothing per call. You get as many phones as GuGuData's rate limit allows. [Neutrino API's On-Demand plan](https://datacircle.dev/validate-phone-apis/neutrino-api/pay-as-you-go-on-demand/llms.txt) costs the least for 10,000 phones a month: $0.80.
[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), [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt) and [Abstract API](https://datacircle.dev/validate-phone-apis/abstract-api/19-monthly-starter-5000-requests-month/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/lox24/free
- [Phone validation API: the best of 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.lox24.eu/en/anti-fraud-check-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://api.lox24.eu/fraud-checks`
- API key: with the plan, on https://www.lox24.eu/en/anti-fraud-check-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://doc.lox24.eu/api/operations/api_fraud-check_post_collection/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: LOX24 (https://www.lox24.eu?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 0%

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Send the SMS · Create the Bulk · Create a verify code

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Region and number type, and whether the format and number are plausible.

## Data

- Countries: Worldwide
- What it checks: numbering plan
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 25 requests
- Enough for: 25 calls, once
- Expires: never while a message is sent or a top-up made within 12 months, after 12 months of neither, 10% of the last top-up is deducted each month

## Rate limit

- Batch: 1

## Speed

- Answer: by polling or webhook

## The call

- You send: service_code "economy", "direct" or "pro". Optional: callback_data, phone, email, ip, address.iso2, address.city, address.postcode, address.street_number, address.street_name
- Method: POST
- Path: /fraud-checks

## About the plan

- Plan: Starting credit
- Who can get it: companies, the self-employed and freelancers, clubs, parties, religious communities and public bodies, no offer for private individuals

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

request ID, status code, risk score, service code, created at, updated at, callback data, price

## LOX24's plans (4)

- [LOX24, free](https://datacircle.dev/validate-phone-apis/lox24/free/llms.txt): $0.00 per 1,000, 0% complete
- [LOX24, top-up, Economy](https://datacircle.dev/validate-phone-apis/lox24/top-up-economy/llms.txt): $22.506 per 1,000, 0% complete
- [LOX24, top-up, Direct](https://datacircle.dev/validate-phone-apis/lox24/top-up-direct/llms.txt): $33.759 per 1,000, 33% complete
- [LOX24, top-up, Pro](https://datacircle.dev/validate-phone-apis/lox24/top-up-pro/llms.txt): $45.012 per 1,000, 33% complete

## LOX24's calls (1)

- `POST /fraud-checks`: [LOX24, free](https://datacircle.dev/validate-phone-apis/lox24/free/llms.txt)

## LOX24's APIs (2)

- [LOX24: email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/lox24/free/llms.txt)
- [LOX24: phone validation API pricing, 4 plans](https://datacircle.dev/validate-phone-apis/lox24/free/llms.txt)

## LOX24: phone validation API alternatives

- [BigDataCorp, pay as you go, 1 - 10.000](https://datacircle.dev/validate-phone-apis/bigdatacorp/pay-as-you-go-1-10-000/llms.txt): $21.641 per 1,000, 44% complete
- [Databar, $3,588 yearly](https://datacircle.dev/validate-phone-apis/databar/3588-yearly/llms.txt): $22.425 per 1,000, 33% complete
- [Listar, top-up from €250,000, Elite, POST /search/verify-phone-ownership](https://datacircle.dev/validate-phone-apis/listar/top-up-from-250000-elite-post-search-verify-phone-ownership/llms.txt): $22.506 per 1,000, 67% complete, live
- [Strale, top-up from €10](https://datacircle.dev/validate-phone-apis/strale/top-up-from-10/llms.txt): $22.506 per 1,000, 56% complete, stored
- [Openapi.com, €5,000 yearly](https://datacircle.dev/validate-phone-apis/openapi-com/5000-yearly/llms.txt): $22.506 per 1,000, 78% 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 2026-11-05.

- https://doc.lox24.eu/api/operations/api_fraud-check_post_collection/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://doc.lox24.eu/info/fraud-detection?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://doc.lox24.eu/info/fraud-detection/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://doc.lox24.eu/openapi-en.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.lox24.eu/en/anti-fraud-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.lox24.eu/en/anti-fraud-check-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.lox24.eu/en/price-list?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.lox24.eu/en/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing