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NumRadar WhatsApp number check API pricing: POST /validate

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67% complete: 4 of the 6 fields on our checklistSee the 6 fields
$2.026per 1,000 phones€1.80 per 1,000 phones is $2.026 at the European Central Bank's rate of $1.1253 for €1.We 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 53% 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.
Type a number to see the cheapest NumRadar plan for that many phones. The table below then sorts the other plans by what each costs.
Plan: Starter one of NumRadar's 5 plans
Call: POST /validate one of NumRadar's 2 calls
API: WhatsApp number check API NumRadar's only API

About this item

  • Live. NumRadar asks WhatsApp about the phone number you send when you call the API.
  • 4 of the 6 fields on our checklist. On WhatsApp, Business account, WhatsApp ID, Place.
  • A monthly subscription. You pay €9 a month for 5,000 results, enough for 5,000 calls. Calls stop once your results run out. Unused results expire at the end of the month.
  • One call. You send phone to POST /validate. You set the Content-Type header to "application/json". The call returns whether the number is on WhatsApp.
  • Who can get it: anyone with a confirmed email address. Keep data: no limit. Use data: with conditions.

NumRadar: WhatsApp number check API alternatives

NumRadar 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 planNumRadar, €9 monthly, Starter, POST /validateWA Validator, $9.99 pack, Starter, POST /api/v1/validate/WaliChat, $99.90 monthly2Chat, $480 yearly, Basic Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check NumberProWebLook, $3,072 yearly, WhatsApp Annual 100K, POST /wavalidation/batch
$ per 1,000 phones$2.026$1.427$1.998$2.00$2.56
Completeness67%17%67%83%67%
Billingmonthlypay firstmonthlyyearlyyearly
Pay€9$9.99$99.90$480$3,072
Enough for5,000 calls a month7,000 calls50,000 calls a month20,000 calls a month100,000 results a month
Freshnesslivelivelivelivelive
Who can get itanyone with a confirmed email addressanyoneanyoneanyone with a WhatsApp number connected to 2Chat, for use in the course of a business activityanyone

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.

  1. api.numradar.app/v1/plans
  2. numradar.app
  3. numradar.app/docs
  4. numradar.app/docs.md
  5. numradar.app/openapi.json
  6. numradar.app/pricing
  7. numradar.app/pricing.md
  8. numradar.app/privacy
  9. numradar.app/terms

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
  • WhatsApp profile, not in the answer
  • WhatsApp ID
  • Formats, not in the answer
  • Place
Price
$ per 1,000 phones$2.026
Percall
Billingmonthly
$ a month$10.13
Charges
Also pays fornothing else
Overage
Units caphard
Not found
$ per 1,000 calls that find nothing$0.00
In their words
Their pitchFind out which phone numbers are registered on WhatsApp. Upload a contact list, use the API, connect an AI agent, or check numbers in Chrome.
Data
Freshnesslive
What it checksnumbering plan, messaging apps
Keep datano limit
Use dataYou agree not to use NumRadar: To facilitate unsolicited messaging, bulk automated spam, harassment, or unlawful marketing communications under the TCPA, ePrivacy Directive, GDPR, or applicable regional telecommunication laws. [...] To scrape, harvest, or aggregate phone numbers without lawful authorization or consent from the data subjects. [...] To bypass, interfere with, or attempt to overload our rate limits, security safeguards, or infrastructure. [...] To reverse-engineer, decompile, or create derivative competitive works targeting the underlying validation engine. [...] Where you submit phone numbers or other personal data relating to third parties, you act as the controller of that data [...] You are responsible for having a lawful basis to submit the data you send us.
Plan
Pay€9
You get5,000 results a month
Enough for5,000 calls a month
Expiresend of the month
Rate limit
Per day1,000
Per second0.042 (150 an hour)
Batch1
Speed
Answerin the call
The call
You sendphone, Content-Type header "application/json"
MethodPOST
Path/validate
About the plan
PlanStarter
Who can get itanyone with a confirmed email address
The 22 fields the plan's answer can hold

status, billable, input number, phone number, valid, registered on WhatsApp, WhatsApp ID, WhatsApp Business account, business name, business verification level, WhatsApp Business API, small business account, WhatsApp link, line type, WhatsApp sendable, country code, country name, country prefix, country flag, country currency, country languages, country timezones

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