WhatsScale WhatsApp number check API pricing
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50% complete: 3 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 one of WhatsScale's 5 plans
Call:
POST / WhatsScale's only callAPI: WhatsApp number check API WhatsScale's only API
About this item
- Live. WhatsScale asks WhatsApp about the phone number you send when you call the API.
- 3 of the 6 fields on our checklist. On WhatsApp, WhatsApp ID, Formats.
- Nothing to pay. WhatsScale limits how many calls you get but gives no number.
- One call. You send
sessionandphonetoPOST /. You set theapi/ checkWhatsapp Content-Typeheader to "application/json". The call returns whether the number is on WhatsApp. - Who can get it: anyone aged 18 or over with a WhatsApp account on a phone they own or control. Keep data: no limit. Use data: with conditions.
WhatsScale: WhatsApp number check API alternatives
WhatsScale 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 planWhatsScale, free | 2Chat, free trial, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number | WSAPI, free trial, POST /users/check | Credify, 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 | 50% | 83% | 33% | 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 | anyone aged 18 or over with a WhatsApp account on a phone they own or control | anyone, no credit card required | new users | Pessoa Jurídica accounts: a company with a CNPJ that signs up | 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
- Place, not in the answer
| $ per 1,000 phones | $0.00 |
|---|---|
| Per | call |
| Billing | free |
| Also pays for | Send Text Message |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | Check if a phone number is registered on WhatsApp before sending. |
|---|
| Freshness | live |
|---|---|
| What it checks | messaging apps |
| Keep data | no limit |
| Use data | You agree to use WhatsScale in compliance with all applicable laws and regulations. You must NOT use WhatsScale to: Send spam, unsolicited messages, or bulk promotional content. Harass, threaten, or abuse any individual or group. Distribute malware, phishing attempts, or fraudulent content. Send illegal content or promote illegal activities. Impersonate others or misrepresent your identity. Violate intellectual property rights of others. Collect personal data without proper consent. Interfere with or disrupt the service. Attempt to bypass security measures or rate limits. Important: You must comply with WhatsApp Terms of Service at all times. You are solely responsible for obtaining proper consent from recipients before sending them messages. When using the WhatsScale API, you agree to: Keep your API key confidential and secure. Not share your API key with unauthorized parties. Use the API in accordance with our documentation. Respect rate limits and fair usage guidelines. Regenerate your API key immediately if compromised. |
| Pay | $0 |
|---|
| Per second | 1.67 (100 a minute) |
|---|---|
| Batch | 1 |
| Answer | in the call |
|---|
| You send | Content-Type header "application/json", session, phone |
|---|---|
| Method | POST |
| Path | /api/checkWhatsapp |
| Plan | Free |
|---|---|
| Who can get it | anyone aged 18 or over with a WhatsApp account on a phone they own or control |
The 4 fields the plan's answer can hold
registered on WhatsApp, phone number, formatted phone number, JID