# QubitOn, free: Phone validation API

> Validate phone numbers and detect line type across 250+ countries

QubitOn's phone validation API on its Free plan. It costs $0.00 per 1,000 phones. It returns 4 of the 9 key fields we check: Number, Validity, Place, Risk.
We haven't run QubitOn through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 888 plans for phone validation APIs by price. Half the plans cost $3.376 per 1,000 phones or less.
[Botoi's $199 monthly plan](https://datacircle.dev/validate-phone-apis/botoi/199-monthly/llms.txt) is the cheapest paid plan per 1,000 phones: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 phones a day.
[Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt), [Foxentry](https://datacircle.dev/validate-phone-apis/foxentry/top-up-pay-as-you-go-post-phone-validate-validate-phone-number-extended/llms.txt) and [HLR Lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-1-1m-post-hlr-lookup/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/qubiton/free
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.qubiton.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://www.qubiton.com/api/phone/validate`
- API key: with the plan, on https://www.qubiton.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://www.qubiton.com/docs.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: QubitOn (https://www.qubiton.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 44%
- Number: ✓
- Validity: ✓
- Place: ✓
- Risk: ✓

## Price

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

## Aggregators

- Aggregators: none

## Overage

- $ per 1,000 phones: $1,500.00

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Validate phone numbers and detect line type across 250+ countries

## Data

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

## Plan

- Pay: $0
- You get: 100 requests a month
- Enough for: 100 calls a month

## Rate limit

- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: phoneNumber, country, requestedByClient. Optional: sourceUniqueId, qubitOnUniqueId, requestedByApplication, requestedByApplicationUrl, requestedByIPAddress, phoneExtension, options.searchForAlternateCountries
- Method: POST
- Path: /api/phone/validate

## About the plan

- Plan: Free
- Who can get it: anyone

## The 22 fields the plan's answer can hold

source unique ID, QubitOn unique ID, score, validation result code, source result code, validation pass, validation description, validation date, validation type, validation sub-type, additional info, phone number, phone extension, phone country code, full phone number, fraud score, country name, country ISO2 code, country ISO3 code, continent, alternate country, alternate phone countries

## QubitOn's plans (2)

- [QubitOn, free](https://datacircle.dev/validate-phone-apis/qubiton/free/llms.txt): $0.00 per 1,000, 44% complete
- [QubitOn, contact us](https://datacircle.dev/validate-phone-apis/qubiton/contact-us/llms.txt): 44% complete

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

- `POST /api/phone/validate`: [QubitOn, free](https://datacircle.dev/validate-phone-apis/qubiton/free/llms.txt)

## QubitOn's APIs (5)

- [QubitOn: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/qubiton/free/llms.txt)
- [QubitOn: phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/qubiton/free/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/babusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-babusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/businessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-businessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/cabusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-cabusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/canonprofit/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-canonprofit-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/cnbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-cnbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/cobusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-cobusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/czbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-czbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/debusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-debusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/hubusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-hubusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/ilbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-ilbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/jpbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-jpbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/nzbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-nzbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/nobusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-nobusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/plbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-plbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/sgbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-sgbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/sebusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-sebusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/chbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-chbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/ukbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-ukbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/usbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-usbusinessregistration-lookup/llms.txt)
- [QubitOn: business verification API pricing, 2 plans, POST /api/vnbusinessregistration/lookup](https://datacircle.dev/business-verification-apis/qubiton/free-post-api-vnbusinessregistration-lookup/llms.txt)
- [QubitOn: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/qubiton/contact-us/llms.txt)
- [QubitOn: company hierarchy API pricing, 1 plan, POST /api/corporatehierarchy/lookup](https://datacircle.dev/company-hierarchy-apis/qubiton/contact-us-enterprise-post-api-corporatehierarchy-lookup/llms.txt)
- [QubitOn: company hierarchy API pricing, 1 plan, POST /api/company/hierarchy/lookup](https://datacircle.dev/company-hierarchy-apis/qubiton/contact-us-enterprise-post-api-company-hierarchy-lookup/llms.txt)

## QubitOn: phone validation API alternatives

- [Foxentry, free trial, POST /phone/validate, Validate phone number (basic)](https://datacircle.dev/validate-phone-apis/foxentry/free-trial-post-phone-validate-validate-phone-number-basic/llms.txt): $0.00 per 1,000, 56% complete, stored
- [HLR Lookups, free, 100 free lookups, POST /nt-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-nt-lookups/llms.txt): $0.00 per 1,000, 67% complete, stored
- [Abstract API, free](https://datacircle.dev/validate-phone-apis/abstract-api/free/llms.txt): $0.00 per 1,000, 89% complete, 1 day
- [seven.io, free test credit, GET /api/lookup/hlr](https://datacircle.dev/validate-phone-apis/seven-io/free-test-credit-get-api-lookup-hlr/llms.txt): $0.00 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://www.qubiton.com/api/portal/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.qubiton.com/capabilities.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.qubiton.com/docs.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.qubiton.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.qubiton.com/pricing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.qubiton.com/products/phone-validation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing