# uazapi, free: WhatsApp number check API

> API premium do WhatsApp super leve e sempre atualizada

uazapi's Servidor gratuito para testes plan for the WhatsApp number check API costs $0.00 per 1,000 phones. We check each provider's docs for 6 fields. uazapi's docs list 3: On WhatsApp, Business account, WhatsApp ID.
uazapi limits how many calls you get but gives no number.
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/uazapi/free
- Get it: https://uazapi.dev/interno?p=conecte&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Request: `POST https://free.uazapi.com/chat/check`
- API key: with the plan, on https://uazapi.dev/interno?p=conecte&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Its API docs: https://docs.uazapi.com/endpoint/post/chat~check?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Sold by: uazapi (https://uazapi.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 50%
- On WhatsApp: ✓
- Business account: ✓
- WhatsApp ID: ✓

## Price

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

## Charges

- Also pays for: 161 other uazapi calls

## Not found

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

## In their words

- Their pitch: API premium do WhatsApp super leve e sempre atualizada

## Data

- Freshness: live
- Countries: Worldwide
- What it checks: messaging apps
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: R$0

## Rate limit

- Per second: 10

## Speed

- Answer: in the call

## The call

- You send: numbers
- Method: POST
- Path: /chat/check

## About the plan

- Plan: Servidor gratuito para testes
- Who can get it: anyone

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

queried number, WhatsApp JID, WhatsApp LID, WhatsApp registration, verified name, group name

## uazapi's plans (13)

- [uazapi, free](https://datacircle.dev/check-whatsapp-apis/uazapi/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [uazapi, R$29 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-29-monthly/llms.txt): 50% complete, live
- [uazapi, R$38 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-38-monthly/llms.txt): 50% complete, live
- [uazapi, R$57 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-57-monthly/llms.txt): 50% complete, live
- [uazapi, R$76 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-76-monthly/llms.txt): 50% complete, live
- [uazapi, R$95 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-95-monthly/llms.txt): 50% complete, live
- [uazapi, R$114 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-114-monthly/llms.txt): 50% complete, live
- [uazapi, R$133 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-133-monthly/llms.txt): 50% complete, live
- [uazapi, R$138 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-138-monthly/llms.txt): 50% complete, live
- [uazapi, R$152 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-152-monthly/llms.txt): 50% complete, live
- [uazapi, R$171 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-171-monthly/llms.txt): 50% complete, live
- [uazapi, R$190 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-190-monthly/llms.txt): 50% complete, live
- [uazapi, R$195 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-195-monthly/llms.txt): 50% complete, live

## uazapi's calls (1)

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

## uazapi's APIs (1)

- [uazapi WhatsApp number check API pricing, 13 plans](https://datacircle.dev/check-whatsapp-apis/uazapi/free/llms.txt)

## uazapi: WhatsApp number check API alternatives

[uazapi alternatives: other WhatsApp number check API providers by price](https://datacircle.dev/uazapi-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.

- [Wappi, free trial, 5 days, GET /api/sync/contact/info](https://datacircle.dev/check-whatsapp-apis/wappi/free-trial-5-days-get-api-sync-contact-info/llms.txt): $0.00 per 1,000, 67% complete, live
- [WhatsMCP, free](https://datacircle.dev/check-whatsapp-apis/whatsmcp/free/llms.txt): $0.00 per 1,000, 67% complete, live
- [Wawp, free](https://datacircle.dev/check-whatsapp-apis/wawp/free/llms.txt): $0.00 per 1,000, 33% complete, live
- [WasenderAPI, free](https://datacircle.dev/check-whatsapp-apis/wasenderapi/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 2026-11-09.

- https://docs.uazapi.com/endpoint/post/chat~check?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://docs.uazapi.com/openapi-bundled.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://docs.uazapi.com/reference/checkChat.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://uazapi.dev/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://uazapi.dev/?pop=termos&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://uazapi.dev/interno?p=conecte&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing