# Wassenger, $39.90 monthly: WhatsApp number check API

> Check if a phone number exists in WhatsApp

Wassenger's Platform Professional plan lets you call the WhatsApp number check API. We check each provider's docs for 6 fields. Wassenger's docs list 4: On WhatsApp, Business account, WhatsApp ID, Place.
You pay $39.90 a month. Wassenger limits how many calls you get but gives no number.
We haven't run a WhatsApp number check API benchmark yet.
This plan costs $39.90 a month. 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/wassenger/39-90-monthly
- Get it: https://wassenger.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Request: `POST https://api.wassenger.com/v1/verify/number`
- API key: with the plan, on https://wassenger.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Its API docs: https://app.wassenger.com/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing#operation/verifyNumber
- Sold by: Wassenger (https://wassenger.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 67%
- On WhatsApp: ✓
- Business account: ✓
- WhatsApp ID: ✓
- Place: ✓

## Price

- Per: call
- Billing: monthly
- $ a month: $39.90

## Charges

- Also pays for: 200 other Wassenger calls

## Not found

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

## In their words

- Their pitch: Check if a phone number exists in WhatsApp

## Data

- Freshness: 7 days
- Countries: Worldwide
- What it checks: messaging apps
- Keep data: no limit
- Use data: 3.4 You agree, as a customer, not to license, resell, lease, transfer or distribute the service to any third party.

## Plan

- Pay: $39.90

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: phone. Optional: refresh
- Method: POST
- Path: /verify/number

## About the plan

- Plan: Platform Professional
- Who can get it: anyone 18 or older with a WhatsApp or WhatsApp Business number to connect by QR code or through the WhatsApp Business API

## The 21 fields the plan's answer can hold

exists on WhatsApp, normalized phone number, WhatsApp ID, business account, WhatsApp chat link, business name, business API account, small business account, business verification level, business privacy mode, country code, country name, country official name, country phone prefix, country flag, country domain, currency, currency name, languages, locales, time zones

## Wassenger's plans (6)

- [Wassenger, $39.90 monthly](https://datacircle.dev/check-whatsapp-apis/wassenger/39-90-monthly/llms.txt): 67% complete, 7 days
- [Wassenger, $69.90 monthly](https://datacircle.dev/check-whatsapp-apis/wassenger/69-90-monthly/llms.txt): 67% complete, 7 days
- [Wassenger, $99.90 monthly](https://datacircle.dev/check-whatsapp-apis/wassenger/99-90-monthly/llms.txt): 67% complete, 7 days
- [Wassenger, $399 yearly](https://datacircle.dev/check-whatsapp-apis/wassenger/399-yearly/llms.txt): 67% complete, 7 days
- [Wassenger, $699 yearly](https://datacircle.dev/check-whatsapp-apis/wassenger/699-yearly/llms.txt): 67% complete, 7 days
- [Wassenger, $999 yearly](https://datacircle.dev/check-whatsapp-apis/wassenger/999-yearly/llms.txt): 67% complete, 7 days

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

- `POST /verify/number`: [Wassenger, $39.90 monthly](https://datacircle.dev/check-whatsapp-apis/wassenger/39-90-monthly/llms.txt)

## Wassenger's APIs (2)

- [Wassenger Phone validation API pricing, 6 plans](https://datacircle.dev/validate-phone-apis/wassenger/39-90-monthly-platform-professional-post-numbers-validate/llms.txt)
- [Wassenger WhatsApp number check API pricing, 6 plans](https://datacircle.dev/check-whatsapp-apis/wassenger/39-90-monthly/llms.txt)

## Wassenger: WhatsApp number check API alternatives

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

We list other providers' plans billed monthly. These plans come closest to this plan in number of key fields. Each plan in the list gives live data or data at most a week old.

- [WhatsMCP, $10 monthly](https://datacircle.dev/check-whatsapp-apis/whatsmcp/10-monthly/llms.txt): no limit, 67% complete, live
- [Wappi, ₽700 monthly, WhatsApp Basic, 1 month, GET /api/sync/contact/info](https://datacircle.dev/check-whatsapp-apis/wappi/700-monthly-whatsapp-basic-1-month-get-api-sync-contact-info/llms.txt): no limit, 67% complete, live
- [WhatsScale, $5 monthly](https://datacircle.dev/check-whatsapp-apis/whatsscale/5-monthly/llms.txt): 50% complete, live
- [uazapi, R$29 monthly](https://datacircle.dev/check-whatsapp-apis/uazapi/r-29-monthly/llms.txt): 50% 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 2026-11-02.

- https://api.wassenger.com/v1/spec?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://app.wassenger.com/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://app.wassenger.com/help/number-exists?lang=en&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://console.wassenger.com/help/api-tester?example=exists&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://wassenger.com/blog/en/how-to-verify-whatsapp-numbers-exist-real-time-and-bulk-validation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://wassenger.com/number-validator?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://wassenger.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://wassenger.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing