# WbizTool, $59 monthly, Standard, POST /number-checks: Phone validation API

> Check thousands of phone numbers in bulk to see which are on WhatsApp before a campaign, so you don't waste messages. On Standard plans and above.

WbizTool's Standard plan for the phone validation API costs $11.80 per 1,000 phones. We check each provider's docs for 9 fields. WbizTool's docs list 1: Number.
We haven't run WbizTool through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
We rank 1,266 plans for phone validation APIs by price. Half the plans cost $3.55 or less per 1,000 phones. This plan costs less per 1,000 phones than 22% of the 1,266 plans.
[GuGuData's CNY 124 (about $19) monthly plan](https://datacircle.dev/validate-phone-apis/gugudata/cny-124-monthly/llms.txt) is the cheapest paid plan per 1,000 phones. GuGuData's CNY 124 (about $19) monthly plan charges nothing per call. You get as many phones as GuGuData's rate limit allows. [Neutrino API's On-Demand plan](https://datacircle.dev/validate-phone-apis/neutrino-api/pay-as-you-go-on-demand/llms.txt) costs the least for 10,000 phones a month: $0.80.
[Trestle](https://datacircle.dev/validate-phone-apis/trestle/top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api/llms.txt), [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt) and [Abstract API](https://datacircle.dev/validate-phone-apis/abstract-api/19-monthly-starter-5000-requests-month/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/wbiztool/59-monthly-standard-post-number-checks
- [Phone validation API: the best of 50+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://wbiztool.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://wbiztool.com/api/v2/number-checks`
- API key: with the plan, on https://wbiztool.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://wbiztool.com/docs/api/v2/number-checks/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing#start-a-check
- Sold by: WbizTool (https://wbiztool.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 11%
- Number: ✓

## Price

- $ per 1,000 phones: $11.80
- Per: result
- Billing: monthly
- $ a month: $59

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Send Message API · Schedule Message API · Send to Group API · from the same budget: Create verification

## Overage

- Units cap: hard

## In their words

- Their pitch: Check thousands of phone numbers in bulk to see which are on WhatsApp before a campaign, so you don't waste messages. On Standard plans and above.

## Data

- Freshness: live
- What it checks: messaging apps
- Keep data: no API terms
- Use data: You agree not to reproduce, duplicate, copy, sell, resell or exploit any portion of the Service, use of the Service, or access to the Service or any contact on the website through which the service is provided, without express written permission by us. [...] In addition to other prohibitions as set forth in the Terms of Service, you are prohibited from using the site or its content: (a) for any unlawful purpose, (b) to solicit others to perform or participate in any unlawful acts, (c) to violate any international, federal, provincial or state regulations, rules, laws, or local ordinances, (d) to infringe upon or violate our intellectual property rights or the intellectual property rights of others, (e) to harass, abuse, insult, harm, defame, slander, disparage, intimidate, or discriminate based on gender, sexual orientation, religion, ethnicity, race, age, national origin, or disability, (f) to submit false or misleading information, (g) to upload or transmit viruses or any other type of malicious code that will or may be used in any way that will affect the functionality or operation of the Service or of any related website, other websites, or the Internet, (h) to collect or track the personal information of others, (i) to spam, phish, pharm, pretext, spider, crawl, or scrape, (j) for any obscene or immoral purpose, or (k) to interfere with or circumvent the security features of the Service or any related website, other websites, or the Internet.

## Plan

- Pay: $59
- You get: 5,000 results a month
- Enough for: 5,000 results a month
- Expires: 1 month

## Rate limit

- Per day: 10,000
- Per second: 1
- Batch: 5,000

## Speed

- Answer: by polling

## The call

- You send: numbers, Content-Type header "application/json". Optional: name, Idempotency-Key header
- Method: POST
- Path: /number-checks

## About the plan

- Plan: Standard
- Who can get it: anyone

## The 4 fields the plan's answer can hold

phone number, on WhatsApp, check status, checked at

## WbizTool's plans (5)

- [WbizTool, $59 monthly, Standard, POST /number-checks](https://datacircle.dev/validate-phone-apis/wbiztool/59-monthly-standard-post-number-checks/llms.txt): $11.80 per 1,000, 11% complete, live
- [WbizTool, $149 monthly, Advanced, POST /number-checks](https://datacircle.dev/validate-phone-apis/wbiztool/149-monthly-advanced-post-number-checks/llms.txt): $7.45 per 1,000, 11% complete, live
- [WbizTool, $590 yearly, Standard, POST /number-checks](https://datacircle.dev/validate-phone-apis/wbiztool/590-yearly-standard-post-number-checks/llms.txt): $9.833 per 1,000, 11% complete, live
- [WbizTool, $1,490 yearly, Advanced, POST /number-checks](https://datacircle.dev/validate-phone-apis/wbiztool/1490-yearly-advanced-post-number-checks/llms.txt): $6.208 per 1,000, 11% complete, live
- [WbizTool, contact us, Enterprise, POST /number-checks](https://datacircle.dev/validate-phone-apis/wbiztool/contact-us-enterprise-post-number-checks/llms.txt): 11% complete, live

## WbizTool's calls (2)

- `POST /verification/create/`: [WbizTool, $59 monthly, Standard, POST /verification/create/](https://datacircle.dev/validate-phone-apis/wbiztool/59-monthly-standard-post-verification-create/llms.txt)
- `POST /number-checks`: [WbizTool, $59 monthly, Standard, POST /number-checks](https://datacircle.dev/validate-phone-apis/wbiztool/59-monthly-standard-post-number-checks/llms.txt)

## WbizTool's APIs (1)

- [WbizTool: phone validation API pricing, 5 plans, POST /number-checks](https://datacircle.dev/validate-phone-apis/wbiztool/59-monthly-standard-post-number-checks/llms.txt)

## WbizTool: phone validation API alternatives

- [Veriphone, $119 pack, 100,000 credits, GET /v3/verify, /v3/verify, full](https://datacircle.dev/validate-phone-apis/veriphone/119-pack-100000-credits-get-v3-verify-v3-verify-full/llms.txt): $11.90 per 1,000, 78% complete, live
- [GREENSMS, top-up, HLR lookup: Russia](https://datacircle.dev/validate-phone-apis/greensms/top-up-hlr/llms.txt): $11.939 per 1,000, 33% complete, live
- [MTS Exolve, top-up, Basic: from 4,000,001 to 5,000,000 requests a month](https://datacircle.dev/validate-phone-apis/mts-exolve/top-up-4-000-001-5-000-000/llms.txt): $11.939 per 1,000, 11% complete, live
- [APISpace, CNY 80 pack](https://datacircle.dev/validate-phone-apis/apispace/cny-80-pack/llms.txt): $11.965 per 1,000, 56% 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 2026-11-08.

- https://wbiztool.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://wbiztool.com/docs/api/v2/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://wbiztool.com/docs/api/v2/number-checks/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://wbiztool.com/docs/guides/billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://wbiztool.com/openapi-v2.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://wbiztool.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://wbiztool.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing