# FraudCheck API, free: Phone validation API

> Phone validation confirms a number is well-formed for its region and identifies its line type and E.164 form.

FraudCheck API's Free / Dev plan for the phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields. FraudCheck API's docs list 5: Formats, Validity, Type, Carrier, Place.
We ran FraudCheck API in [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt). We didn't score FraudCheck API's call.
This plan is free. We rank 1,340 plans for phone validation APIs by price. Half the plans cost $2.923 or less per 1,000 phones. [298 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/fraudcheck-api/free
- [Phone validation API in 2026: the best of 70+ compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://fraudcheckapi.com/Pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `GET https://fraudcheckapi.com/v1/phone/{number}`
- API key: with the plan, on https://fraudcheckapi.com/Pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://fraudcheckapi.com/Docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: FraudCheck API (https://fraudcheckapi.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 56%
- Formats: ✓
- Validity: ✓
- Type: ✓
- Carrier: ✓
- Place: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Full composite screen · Full IP geolocation · IP checks + location block · Email checks

## Not found

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

## In their words

- Their pitch: Phone validation confirms a number is well-formed for its region and identifies its line type and E.164 form.

## Data

- Countries: Worldwide
- What it checks: numbering plan
- Keep data: no limit
- Use data: You agree not to: (a) use the Service unlawfully or to facilitate unlawful discrimination, (b) attempt to reconstruct, extract, bulk-export, resell, or redistribute the underlying reference datasets, (c) probe, scan, or circumvent authentication, rate limits, quotas, or security controls, (d) submit data you have no lawful right to submit, (e) exceed or evade the limits of your plan, or (f) use the Service to build a competing dataset or service. [...] You agree not to use the Service, in whole or in part, as a factor in establishing an individual's eligibility for credit, insurance, employment, housing, or any other purpose covered by the FCRA, and not to use the output as the sole basis for denying any person a product, service, or opportunity.

## Plan

- Pay: $0
- You get: 1,000 requests a month
- Enough for: 1,000 calls a month

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: number
- Method: GET
- Path: /v1/phone/{number}

## About the plan

- Plan: Free / Dev
- Who can get it: anyone aged 18 or older, for business use

## The 6 fields the plan's answer can hold

valid, region, line type, E.164 format, reported scam, carrier

## FraudCheck API's plans (4)

- [FraudCheck API, free](https://datacircle.dev/validate-phone-apis/fraudcheck-api/free/llms.txt): $0.00 per 1,000, 56% complete
- [FraudCheck API, $19.99 monthly](https://datacircle.dev/validate-phone-apis/fraudcheck-api/19-99-monthly/llms.txt): $0.80 per 1,000, 56% complete
- [FraudCheck API, $39.99 monthly](https://datacircle.dev/validate-phone-apis/fraudcheck-api/39-99-monthly/llms.txt): $0.80 per 1,000, 56% complete
- [FraudCheck API, contact us](https://datacircle.dev/validate-phone-apis/fraudcheck-api/contact-us/llms.txt): 56% complete

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

- `GET /v1/phone/{number}`: [FraudCheck API, free](https://datacircle.dev/validate-phone-apis/fraudcheck-api/free/llms.txt)

## FraudCheck API's APIs (4)

- [FraudCheck API Email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/fraudcheck-api/free/llms.txt)
- [FraudCheck API IP company lookup API pricing, 4 plans](https://datacircle.dev/ip-company-lookup-apis/fraudcheck-api/free/llms.txt)
- [FraudCheck API Phone validation API pricing, 4 plans](https://datacircle.dev/validate-phone-apis/fraudcheck-api/free/llms.txt)
- [FraudCheck API IP geolocation API pricing, 4 plans, GET /v1/geo/{ip}](https://datacircle.dev/ip-geolocation-apis/fraudcheck-api/free-dev-get-v1-geo-ip/llms.txt)
- [FraudCheck API IP geolocation API pricing, 4 plans, GET /v1/ip/{ip}](https://datacircle.dev/ip-geolocation-apis/fraudcheck-api/free-dev-get-v1-ip-ip/llms.txt)

## FraudCheck API: phone validation API alternatives

[FraudCheck API alternatives: other phone validation API providers by price](https://datacircle.dev/fraudcheck-api-alternatives.txt)

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

- [FraudCheck API, $19.99 monthly](https://datacircle.dev/validate-phone-apis/fraudcheck-api/19-99-monthly/llms.txt): $0.80 per 1,000, 56% complete
- [BigDataCloud, $79.90 monthly, Silver, GET /data/phone-number-validate-by-ip](https://datacircle.dev/validate-phone-apis/bigdatacloud/79-90-monthly-silver-get-data-phone-number-validate-by-ip/llms.txt): $0.799 per 1,000, 56% complete, stored
- [Phone-Check.app, $79.99 pack, 100,000 Credits, GET /v1-get-phone-extra-details](https://datacircle.dev/validate-phone-apis/phone-check-app/79-99-pack-100000-credits-get-v1-get-phone-extra-details/llms.txt): $0.80 per 1,000, 78% complete, live
- [RealValidito, $2,000 pack](https://datacircle.dev/validate-phone-apis/realvalidito/2000-pack-2500000-phone-lookup-credits/llms.txt): $0.80 per 1,000, 67% complete, 1 day
- [CheckNumber.AI, top-up from $20, Pay as you go, POST /v1/tasks, Zalo Number Activity](https://datacircle.dev/validate-phone-apis/checknumber-ai/top-up-from-20-pay-as-you-go-post-v1-tasks-zalo-number-activity/llms.txt): $0.80 per 1,000, 11% 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 2026-11-11.

- https://fraudcheckapi.com/Checks?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Data?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Product?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Tools?tool=email&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Tools?tool=geo&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Tools?tool=ip&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/Tools?tool=phone&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://fraudcheckapi.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing