# NuFi, free: Phone validation API

> Confirmación de validez: Verifica si el télefono es valido y funcional

NuFi's Free API key (100 transactions) plan for the phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields. NuFi's docs list 6: Number, Validity, Type, Carrier, Place, Risk.
We haven't run NuFi through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 1,334 plans for phone validation APIs by price. Half the plans cost $3.867 or less per 1,000 phones. [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. [UAPI's CNY 4.90 pack](https://datacircle.dev/validate-phone-apis/uapi/cny-4-90-pack/llms.txt) costs the least for 10,000 phones a month: about $0.73.
[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/nufi/free
- [Phone validation API: the best of 50+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.nufi.mx/en/apis-validaci%C3%B3n-identidad/apis?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://nufi.azure-api.net/perfilamiento/v1/telefono`
- API key: with the plan, on https://www.nufi.mx/en/apis-validaci%C3%B3n-identidad/apis?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://docs.nufi.mx/docs/api-docs-2023/1262f492d2129-perfilamiento-de-identidades-por-telefono?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: NuFi (https://www.nufi.mx?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 67%
- Number: ✓
- Validity: ✓
- Type: ✓
- Carrier: ✓
- Place: ✓
- Risk: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Confirmación de validez: Verifica si el télefono es valido y funcional

## Data

- What it checks: carrier, messaging apps
- Keep data: no limit
- Use data: Queda prohibida la reventa del servicio sin autorización expresa de Nufi. [...] Queda totalmente prohibido el uso del código del servicio para fines no autorizados, así como de su tecnología API para desarrollar productos que le compitan sin previo acuerdo firmado por ambas partes. [...] Previo a realizar alguna búsqueda en la plataforma de Nufi, los Controladores (personas físicas o morales) clientes de Nufi deberán tener el Consentimiento expreso por el Candidato para realizar el tratamiento de sus datos

## Plan

- Pay: $0
- You get: 100 requests

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: telefono
- Method: POST
- Path: /perfilamiento/v1/telefono

## About the plan

- Plan: Free API key (100 transactions)
- Who can get it: anyone who requests an API key through NuFi's contact form

## The 9 fields the plan's answer can hold

phone number, valid, disposable, line type, country, carrier, score, registered accounts, applied rules

## NuFi's plans (2)

- [NuFi, free](https://datacircle.dev/validate-phone-apis/nufi/free/llms.txt): $0.00 per 1,000, 67% complete
- [NuFi, contact us](https://datacircle.dev/validate-phone-apis/nufi/contact-us/llms.txt): 67% complete

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

- `POST /perfilamiento/v1/telefono`: [NuFi, free](https://datacircle.dev/validate-phone-apis/nufi/free/llms.txt)

## NuFi's APIs (8)

- [NuFi: news API pricing, 2 plans](https://datacircle.dev/news-apis/nufi/free/llms.txt)
- [NuFi: SERP API pricing, 2 plans](https://datacircle.dev/serp-apis/nufi/free/llms.txt)
- [NuFi: business verification API pricing, 2 plans](https://datacircle.dev/business-verification-apis/nufi/free/llms.txt)
- [NuFi: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/nufi/free/llms.txt)
- [NuFi: local business search API pricing, 2 plans](https://datacircle.dev/local-business-search-apis/nufi/free/llms.txt)
- [NuFi: people enrichment API pricing, 2 plans](https://datacircle.dev/person-enrichment-apis/nufi/free/llms.txt)
- [NuFi: phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/nufi/free/llms.txt)
- [NuFi: reverse email lookup API pricing, 2 plans](https://datacircle.dev/reverse-email-lookup-apis/nufi/free/llms.txt)

## NuFi: phone validation API alternatives

- [Trestle, free trial, GET /3.0/phone_intel](https://datacircle.dev/validate-phone-apis/trestle/free/llms.txt): $0.00 per 1,000, 56% complete, stored
- [Signal House, free](https://datacircle.dev/validate-phone-apis/signal-house/free/llms.txt): $0.00 per 1,000, 44% complete, live
- [Abstract API, free](https://datacircle.dev/validate-phone-apis/abstract-api/free/llms.txt): $0.00 per 1,000, 89% complete, 1 day
- [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

## 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://docs.nufi.mx/docs/api-docs-2023?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://docs.nufi.mx/docs/api-docs-2023/1262f492d2129-perfilamiento-de-identidades-por-telefono?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://docs.nufi.mx/docs/api-docs-2023/m7rs9qakw21oi-api-keys?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.nufi.mx/en/apis-validaci%C3%B3n-identidad/apis?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.nufi.mx/terminosycondiciones?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing