# uazapi, free: Phone validation API

> API premium do WhatsApp super leve e sempre atualizada

uazapi's Servidor gratuito para testes plan for the phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields: Number, Formats, Validity, Type and 5 more. uazapi's docs list none of the 9.
uazapi limits how many calls you get but gives no number.
We haven't run uazapi through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 1,342 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. [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/uazapi/free
- [Phone validation API in 2026: the best of 60+ compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://uazapi.dev/interno?p=conecte&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-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=phone-validation-api-pricing
- Its API docs: https://docs.uazapi.com/endpoint/post/chat~check?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: uazapi (https://uazapi.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 0%

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: 161 other uazapi calls

## Not found

- $ per 1,000: $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/validate-phone-apis/uazapi/free/llms.txt): $0.00 per 1,000, 0% complete, live
- [uazapi, R$29 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-29-monthly/llms.txt): 0% complete, live
- [uazapi, R$38 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-38-monthly/llms.txt): 0% complete, live
- [uazapi, R$57 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-57-monthly/llms.txt): 0% complete, live
- [uazapi, R$76 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-76-monthly/llms.txt): 0% complete, live
- [uazapi, R$95 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-95-monthly/llms.txt): 0% complete, live
- [uazapi, R$114 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-114-monthly/llms.txt): 0% complete, live
- [uazapi, R$133 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-133-monthly/llms.txt): 0% complete, live
- [uazapi, R$138 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-138-monthly/llms.txt): 0% complete, live
- [uazapi, R$152 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-152-monthly/llms.txt): 0% complete, live
- [uazapi, R$171 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-171-monthly/llms.txt): 0% complete, live
- [uazapi, R$190 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-190-monthly/llms.txt): 0% complete, live
- [uazapi, R$195 monthly](https://datacircle.dev/validate-phone-apis/uazapi/r-195-monthly/llms.txt): 0% complete, live

## uazapi's calls (1)

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

## uazapi's APIs (1)

- [uazapi: phone validation API pricing, 13 plans](https://datacircle.dev/validate-phone-apis/uazapi/free/llms.txt)

## uazapi: phone validation API alternatives

- [Signal House, free](https://datacircle.dev/validate-phone-apis/signal-house/free/llms.txt): $0.00 per 1,000, 44% complete, live
- [Foxentry, free trial, POST /phone/validate, Validate phone number (extended)](https://datacircle.dev/validate-phone-apis/foxentry/free-trial-post-phone-validate-validate-phone-number-extended/llms.txt): $0.00 per 1,000, 56% complete, live
- [HLR Lookups, free, 100 free lookups, POST /hlr-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-hlr-lookups/llms.txt): $0.00 per 1,000, 56% complete, live
- [HLR Lookup, free, 200 free credits, POST /batches/{id}/sourcejson, Bulk uploads via API](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-batches-id-sourcejson/llms.txt): $0.00 per 1,000, 89% 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=phone-validation-api-pricing
- https://docs.uazapi.com/openapi-bundled.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://docs.uazapi.com/reference/checkChat.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://uazapi.dev/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://uazapi.dev/?pop=termos&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://uazapi.dev/interno?p=conecte&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing