NumDetect WhatsApp number check API pricing: POST /
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33% complete: 2 of the 6 fields on our checklistSee the 6 fields
$4.00per 1,000 phonesWe haven't run a WhatsApp number check API benchmark yet.We rank 99 plans for WhatsApp number check APIs by price. Half the plans cost $3.20 or less per 1,000 phones. This plan costs less per 1,000 phones than 34% of the 99 plans.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: Basic one of NumDetect's 4 plans
- $19.90 pack, BasicBasic$4.00 per 1,000
- $69.90 pack, PlusPlus$3.784 per 1,000
- $199.90 pack, ProfessionalProfessional$3.636 per 1,000
- $499.90 pack, ScaleScale$3.333 per 1,000
Call:
POST /, Single check, WhatsApp one of NumDetect's 4 calls for this APIPOST /, Bulk check, WhatsApp$19.90 pack, Basic$0.25 per 1,000api/ v1/ bulk-jobs POST /, Bulk check, WhatsApp Business$19.90 pack, Basic$0.30 per 1,000api/ v1/ bulk-jobs POST /, Single check, WhatsApp$19.90 pack, Basic$4.00 per 1,000api/ v1/ checks POST /, Single check, WhatsApp Business$19.90 pack, Basic$4.00 per 1,000api/ v1/ checks
API: WhatsApp number check API one of NumDetect's 2 APIs
- Phone validation API
POST /, Bulk check, Telegramapi/ v1/ bulk-jobs - Phone validation API
POST /, Bulk check, Viberapi/ v1/ bulk-jobs - Phone validation API
POST /, Bulk check, Zaloapi/ v1/ bulk-jobs - Phone validation API
POST /, Single check, Telegramapi/ v1/ checks - Phone validation API
POST /, Single check, Viberapi/ v1/ checks - Phone validation API
POST /, Single check, Zaloapi/ v1/ checks - WhatsApp number check API
About this item
- Live. NumDetect asks WhatsApp about the phone number you send when you call the API.
- 2 of the 6 fields on our checklist. On WhatsApp, Place.
- A single purchase. You pay $19.90 for $19.90 of credit, enough for 4,975 calls. Calls stop once your credit runs out.
- One call. You send
phoneand theIdempotency-Keyheader toPOST /. You setapi/ v1/ checks productsto "whatsapp" and theContent-Typeheader to "application/json". You can also sendcountry. The call returns whether the number is on WhatsApp. - Who can get it: anyone who signs up, no approval step. Keep data: no limit. Use data: with conditions.
NumDetect: WhatsApp number check API alternatives
NumDetect 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 planNumDetect, $19.90 pack, Basic, POST /api/v1/checks, Single check, WhatsApp | NumRadar, €9 monthly, Starter, POST /validate | WaliChat, $69.90 monthly | 2Chat, $480 yearly, Basic Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number, full | ProWebLook, $400 pack, WhatsApp One-Time 100K, POST /wavalidation/batch | |
|---|---|---|---|---|---|
| $ per 1,000 phones | $4.00 | $2.026 | $2.33 | $4.00 | $4.00 |
| Completeness | 33% | 67% | 67% | 83% | 67% |
| Billing | pay first | monthly | monthly | yearly | pay first |
| Pay | $19.90 | €9 | $69.90 | $480 | $400 |
| Enough for | 4,975 calls | 5,000 calls a month | 30,000 calls a month | 10,000 calls a month | 100,000 results |
| Freshness | live | live | live | live | live |
| Who can get it | anyone who signs up, no approval step | anyone with a confirmed email address | anyone | anyone with a WhatsApp number connected to 2Chat, for use in the course of a business activity | 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 2026-11-12.
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, not in the answer
- Formats, not in the answer
- Place
| $ per 1,000 phones | $4.00 |
|---|---|
| Per | call |
| Billing | pay first |
| Also pays for | from the same budget: Bulk check |
|---|
| Units cap | hard |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | See which apps a phone number uses before you reach out. |
|---|
| Freshness | live |
|---|---|
| What it checks | messaging apps |
| Keep data | no limit |
| Use data | Do not share access in a way that bypasses service limits. [...] Use only data you are entitled to process. Do not use the service for spam, harassment, unlawful surveillance, unauthorized access or attempts to bypass safeguards. Registration and Business signals do not prove identity, ownership, consent, recent activity or guaranteed message delivery. Do not treat unknown as a negative answer or use a signal as the sole basis for a decision with significant effects on a person. |
| Pay | $19.90 |
|---|---|
| You get | $19.90 |
| Enough for | 4,975 calls |
| Batch | 1 |
|---|
| Answer | in the call |
|---|
| You send | phone, products "whatsapp", Content-Type header "application/json", Idempotency-Key header. Optional: country |
|---|---|
| Method | POST |
| Path | /api/v1/checks |
| Plan | Basic |
|---|---|
| Who can get it | anyone who signs up, no approval step |
The 11 fields the plan's answer can hold
check ID, input type, input, country, amount charged, product ID, status, registered, product price, product amount charged, extra info