WSAPI 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 one of WSAPI's 8 plans
- Free trialFree Trial$0.00 per 1,000
- $5 monthly, Single InstanceSingle Instance
- $23.75 monthly, 5 Instances5 Instances
- $92 monthly, 20 Instances20 Instances
- $51 yearly, Single InstanceSingle Instance
- $243 yearly, 5 Instances5 Instances
- $948 yearly, 20 Instances20 Instances
- Contact us, ResellersResellers
Call:
POST / one of WSAPI's 2 callsAPI: WhatsApp number check API WSAPI's only API
About this item
- Live. WSAPI asks WhatsApp about the phone number you send when you call the API.
- 2 of the 6 fields on our checklist. On WhatsApp, WhatsApp ID.
- Nothing to pay. WSAPI limits how many results you get but gives no number.
- One call. You send the
X-Instance-Idheader andphonestoPOST /. The call returns whether each number you send is on WhatsApp.users/ check - Who can get it: new users. Keep data: no limit. Use data: with conditions.
WSAPI: WhatsApp number check API alternatives
WSAPI alternatives: other WhatsApp number check API providers by price
We list other providers' plans closest to this plan in price per 1,000 phones. Each plan in the table gives live data.
| This planWSAPI, free trial, POST /users/check | 2Chat, free trial, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number | Credify, free | Fonnte, free | CheckNumber.AI, free trial, POST /v1/tasks, WhatsApp Advanced | |
|---|---|---|---|---|---|
| $ per 1,000 phones | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Completeness | 33% | 83% | 17% | 17% | 0% |
| Billing | free | free | free | free | free |
| Pay | $0 | $0 | $0 | $0 | $0 |
| Enough for | not published | 100 calls, once | not published | not published | 1,000 results, once |
| Freshness | live | live | live | live | live |
| Who can get it | new users | anyone, no credit card required | Pessoa Jurídica accounts: a company with a CNPJ that signs up | anyone with a WhatsApp number, regular or Business, to connect to a device | anyone who contacts support |
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.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- On WhatsApp
- Business account, not in the answer
- WhatsApp profile, not in the answer
- WhatsApp ID
- Formats, not in the answer
- Place, not in the answer
| $ per 1,000 phones | $0.00 |
|---|---|
| Per | result |
| Billing | free |
| Also pays for | 136 other WSAPI calls |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | Check multiple phone numbers at once to see if they are registered on WhatsApp. |
|---|
| Freshness | live |
|---|---|
| What it checks | messaging apps |
| Keep data | no limit |
| Use data | You agree not to use the Service to: Violate any applicable laws or regulations. Send unsolicited messages (spam), including bulk commercial messages. Harass, threaten, or abuse other individuals. Distribute malware, viruses, or other harmful software. Impersonate any person or entity, or falsely represent your affiliation with any person or entity. Interfere with or disrupt the integrity or performance of the Service. Attempt to gain unauthorized access to the Service or related systems. Violate WhatsApp's Terms of Service or any applicable third-party terms. |
| Pay | $0 |
|---|
| Answer | in the call |
|---|
| You send | X-Instance-Id header, phones |
|---|---|
| Method | POST |
| Path | /users/check |
| Plan | Free Trial |
|---|---|
| Who can get it | new users |
The 3 fields the plan's answer can hold
phone number, registered on WhatsApp, JID