# Credify, free: WhatsApp number check API

> Esta API realiza a validação de números de telefone com identificação de registro no WhatsApp.

Credify's Autosserviço plan for the WhatsApp number check API costs $0.00 per 1,000 phones. We check each provider's docs for 6 fields. Credify's docs list 1: On WhatsApp.
We haven't run a WhatsApp number check API benchmark yet.
This plan is free. We rank 99 plans for WhatsApp number check APIs by price. Half the plans cost $3.20 or less per 1,000 phones.
[ZelNum's $500 pack](https://datacircle.dev/check-whatsapp-apis/zelnum/500-pack-pay-as-you-go-500-top-up-post-detect/llms.txt) costs the least per 1,000 phones: $0.043. [Wawp's €39 yearly plan](https://datacircle.dev/check-whatsapp-apis/wawp/39-yearly/llms.txt) costs the least for 10,000 phones a month: about $3.66.

- This page: https://datacircle.dev/check-whatsapp-apis/credify/free
- Get it: https://credify.com.br/legal/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Request: `POST https://api.credify.com.br/validawhatsapp`
- API key: with the plan, on https://credify.com.br/legal/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Its API docs: https://docs.credify.com.br/api-reference/api-reference/8-antifraude-e-validacoes/8-1-validacao-cadastral-e-vinculo/validacao-de-whats-app?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Sold by: Credify (https://credify.com.br?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 17%
- On WhatsApp: ✓

## Price

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

## Not found

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

## In their words

- Their pitch: Esta API realiza a validação de números de telefone com identificação de registro no WhatsApp.

## Data

- Freshness: live
- Countries: Brazil
- What it checks: messaging apps
- Keep data: no limit
- Use data: uso exclusivo de seus objetivos sociais [...] Vedado utilizar dados para fins não permitidos por lei.

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: Consulta.IdConsulta "627", Consulta.Telefone, Content-Type header "application/json"
- Method: POST
- Path: /validawhatsapp

## About the plan

- Plan: Autosserviço
- Who can get it: Pessoa Jurídica accounts: a company with a CNPJ that signs up

## The only field the plan's answer can hold

WhatsApp registered

## Credify's plans (2)

- [Credify, free](https://datacircle.dev/check-whatsapp-apis/credify/free/llms.txt): $0.00 per 1,000, 17% complete, live
- [Credify, contact us](https://datacircle.dev/check-whatsapp-apis/credify/contact-us/llms.txt): 17% complete, live

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

- `POST /validawhatsapp`: [Credify, free](https://datacircle.dev/check-whatsapp-apis/credify/free/llms.txt)

## Credify's APIs (9)

- [Credify Company enrichment API pricing, 2 plans](https://datacircle.dev/company-enrichment-apis/credify/free/llms.txt)
- [Credify Email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/credify/free/llms.txt)
- [Credify People search API pricing, 2 plans](https://datacircle.dev/people-search-apis/credify/free/llms.txt)
- [Credify People enrichment API pricing, 2 plans](https://datacircle.dev/person-enrichment-apis/credify/free/llms.txt)
- [Credify Phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/credify/free-autosservico-post-proprietariotelefoneoperadora/llms.txt)
- [Credify Reverse email lookup API pricing, 2 plans](https://datacircle.dev/reverse-email-lookup-apis/credify/free/llms.txt)
- [Credify WhatsApp number check API pricing, 2 plans](https://datacircle.dev/check-whatsapp-apis/credify/free/llms.txt)
- [Credify Company discovery API pricing, 2 plans, POST /geraleadscep](https://datacircle.dev/company-discovery-apis/credify/free-autosservico-post-geraleadscep/llms.txt)
- [Credify Company discovery API pricing, 2 plans, POST /geraleadsuf](https://datacircle.dev/company-discovery-apis/credify/free-autosservico-post-geraleadsuf/llms.txt)
- [Credify Business verification API pricing, 2 plans, POST /pjrazao](https://datacircle.dev/business-verification-apis/credify/free-autosservico-post-pjrazao/llms.txt)
- [Credify Business verification API pricing, 2 plans, POST /pjreceitafederal](https://datacircle.dev/business-verification-apis/credify/free-autosservico-post-pjreceitafederal/llms.txt)

## Credify: WhatsApp number check API alternatives

[Credify alternatives: other WhatsApp number check API providers by price](https://datacircle.dev/credify-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 phones. Each plan in the list gives live data.

- [Listar, free](https://datacircle.dev/check-whatsapp-apis/listar/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [Maytapi, free](https://datacircle.dev/check-whatsapp-apis/maytapi/free/llms.txt): $0.00 per 1,000, 33% complete, live
- [Fonnte, free](https://datacircle.dev/check-whatsapp-apis/fonnte/free/llms.txt): $0.00 per 1,000, 17% complete, live
- [Nock, free](https://datacircle.dev/check-whatsapp-apis/nock/free/llms.txt): $0.00 per 1,000, 17% 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 2026-11-06.

- https://credify.com.br?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://credify.com.br/legal/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://credify.com.br/legal/termos?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://docs.credify.com.br/api-reference/api-reference/8-antifraude-e-validacoes/8-1-validacao-cadastral-e-vinculo/validacao-de-whats-app?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://docs.credify.com.br/faq/consultas-e-endpoints?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://docs.credify.com.br/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://docs.credify.com.br/visao-geral/inicio?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing