Z-API WhatsApp number check API pricing: POST /
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33% complete: 2 of the 6 fields on our checklistSee the 6 fields
$0.00per 1,000 phonesWe 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 costs the least per 1,000 phones: $0.043. Wawp's €39 yearly plan costs the least for 10,000 phones a month: about $3.66.
Plan: Free trial, 2 days one of Z-API's 19 plans
- Free trial, 2 daysFree trial, 2 days$0.00 per 1,000
- $19.99 monthly, Ultimate PlanUltimate Planno limit
- R$99.99 monthly, Plano UltimatePlano Ultimateno limit
- $179.90 monthly, Partner Plan, 10 to 49 instancesPartner Plan, 10 to 49 instancesno limit
- $799.50 monthly, Partner Plan, 50 to 99 instancesPartner Plan, 50 to 99 instancesno limit
- R$899.90 monthly, Plano Partner, 10 a 49 instânciasPlano Partner, 10 a 49 instânciasno limit
- $1,499 monthly, Partner Plan, 100 to 199 instancesPartner Plan, 100 to 199 instancesno limit
- $2,798 monthly, Partner Plan, 200 to 499 instancesPartner Plan, 200 to 499 instancesno limit
- R$3,999.50 monthly, Plano Partner, 50 a 99 instânciasPlano Partner, 50 a 99 instânciasno limit
- $6,495 monthly, Partner Plan, 500 to 999 instancesPartner Plan, 500 to 999 instancesno limit
- R$7,499 monthly, Plano Partner, 100 a 199 instânciasPlano Partner, 100 a 199 instânciasno limit
- $11,990 monthly, Partner Plan, 1,000 to 1,999 instancesPartner Plan, 1,000 to 1,999 instancesno limit
- R$13,998 monthly, Plano Partner, 200 a 499 instânciasPlano Partner, 200 a 499 instânciasno limit
- $21,980 monthly, Partner Plan, 2,000 or more instancesPartner Plan, 2,000 or more instancesno limit
- R$32,495 monthly, Plano Partner, 500 a 999 instânciasPlano Partner, 500 a 999 instânciasno limit
- R$59,990 monthly, Plano Partner, 1.000 a 1.999 instânciasPlano Partner, 1.000 a 1.999 instânciasno limit
- R$109,980 monthly, Plano Partner, 2.000 ou mais instânciasPlano Partner, 2.000 ou mais instânciasno limit
- $215.90 yearly, Ultimate PlanUltimate Planno limit
- R$1,079.89 yearly, Plano UltimatePlano Ultimateno limit
Call:
POST / one of Z-API's 2 callsPOST /Free trial, 2 days$0.00 per 1,000instances/ {instanceId}/ token/ {token}/ phone-exists-batch GET /Free trial, 2 days$0.00 per 1,000instances/ {instanceId}/ token/ {token}/ phone-exists/ {phone}
API: WhatsApp number check API Z-API's only API
About this item
- Freshness. We don't know how fresh this plan's data is.
- 2 of the 6 fields on our checklist. WhatsApp ID, Formats.
- Nothing to pay. Z-API limits how many results you get but gives no number.
- One call. You send
instanceIdandphonestoPOST /. The call returns whether each number you send is on WhatsApp.instances/ {instanceId}/ token/ {token}/ phone-exists-batch - Who can get it: anyone, no credit card. Keep data: no API terms. Use data: with conditions.
Z-API: WhatsApp number check API alternatives
Z-API alternatives: other WhatsApp number check API providers by price
We list other providers' plans closest to this plan in price per 1,000 phones.
| This planZ-API, free trial, 2 days, POST /instances/{instanceId}/token/{token}/phone-exists-batch | 2Chat, free trial, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number | CheckNumber.AI, free trial, POST /v1/tasks, WhatsApp Age & Gender Checker | Credify, free | ZelNum, free | |
|---|---|---|---|---|---|
| $ per 1,000 phones | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Completeness | 33% | 83% | 33% | 17% | 0% |
| Billing | free | free | free | free | free |
| Pay | $0 | $0 | $0 | $0 | $0 |
| Enough for | not published | 100 calls, once | 1,000 results, once | not published | not published |
| Freshness | unknown | live | unknown | live | unknown |
| Who can get it | anyone, no credit card | anyone, no credit card required | anyone who contacts support | Pessoa Jurídica accounts: a company with a CNPJ that signs up | anyone |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-02.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- On WhatsApp, not in the answer
- Business account, not in the answer
- WhatsApp profile, not in the answer
- WhatsApp ID
- Formats
- Place, not in the answer
| $ per 1,000 phones | $0.00 |
|---|---|
| Per | result |
| Billing | free |
| Also pays for | 217 other Z-API calls |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | Use this API whenever you want to check if a number has an application account, usually for form validation. |
|---|
| What it checks | messaging apps |
|---|---|
| Keep data | no API terms |
| Use data | Our REST API and Webhooks infrastructure is intended exclusively for technical interoperability between business systems (ERPs, CRMs and requested transactional notifications). Using it for bulk messaging, unsolicited communications (SPAM) or violating third-party terms of use is strictly prohibited and results in immediate account termination. |
| Pay | $0 |
|---|
| Batch | 50,000 |
|---|
| Answer | in the call |
|---|
| You send | instanceId, phones |
|---|---|
| Method | POST |
| Path | /instances/{instanceId}/token/{token}/phone-exists-batch |
| Plan | Free trial, 2 days |
|---|---|
| Who can get it | anyone, no credit card |
The 4 fields the plan's answer can hold
input, status, formatted number, WhatsApp LID