# NumRadar, €9 monthly, Starter, POST /bulk: Phone validation API

> Find out which phone numbers are registered on WhatsApp. Upload a contact list, use the API, connect an AI agent, or check numbers in Chrome.

NumRadar's phone validation API on its Starter plan. It costs $2.026 per 1,000 phones. It returns 4 of the 9 key fields we check: Number, Validity, Type, Place.
€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 NumRadar through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
Half of the 935 plans we rank by price cost $3.96 per 1,000 phones or less. This plan costs less per 1,000 phones than 56% of the 935 plans.
[Botoi's $199 monthly plan](https://datacircle.dev/validate-phone-apis/botoi/199-monthly/llms.txt) is the cheapest paid plan per 1,000 phones: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 phones a day.
[Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt), [Foxentry](https://datacircle.dev/validate-phone-apis/foxentry/top-up-pay-as-you-go-post-phone-validate-validate-phone-number-extended/llms.txt) and [HLR Lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-1-1m-post-hlr-lookup/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/numradar/9-monthly-starter-post-bulk
- [Phone validation API: the best of 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://numradar.app/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://api.numradar.app/v1/bulk`
- API key: with the plan, on https://numradar.app/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://numradar.app/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: NumRadar (https://numradar.app?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 44%
- Number: ✓
- Validity: ✓
- Type: ✓
- Place: ✓

## Price

- $ per 1,000 phones: $2.026
- Per: result
- Billing: monthly
- $ a month: $10.13

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Find 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

- What it checks: numbering plan, messaging apps
- Keep data: no limit
- Use data: You 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 get: 5,000 results a month
- Enough for: 5,000 results a month
- Expires: end of the month

## Rate limit

- Per second: 0.083
- Concurrent: 1
- Batch: 5,000

## Speed

- Answer: by polling or webhook

## The call

- You send: one of phones or file
- Method: POST
- Path: /bulk

## About the plan

- Plan: Starter
- Who can get it: anyone with a confirmed email address

## The 41 fields the plan's answer can hold

job ID, job status, numbers submitted, unique numbers, numbers processed, registered count, not registered count, invalid count, error count, validations from prepaid balance, job created at, job finished at, job expires at, job expired at, paused by, stop requested, excluded count, data deleted by, waiting, row number, number status, 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

## NumRadar's plans (5)

- [NumRadar, €9 monthly, Starter, POST /bulk](https://datacircle.dev/validate-phone-apis/numradar/9-monthly-starter-post-bulk/llms.txt): $2.026 per 1,000, 44% complete
- [NumRadar, €29 monthly, Growth, POST /bulk](https://datacircle.dev/validate-phone-apis/numradar/29-monthly-growth-post-bulk/llms.txt): $1.305 per 1,000, 44% complete
- [NumRadar, €99 monthly, Business, POST /bulk](https://datacircle.dev/validate-phone-apis/numradar/99-monthly-business-post-bulk/llms.txt): $1.114 per 1,000, 44% complete
- [NumRadar, €249 monthly, Enterprise, POST /bulk](https://datacircle.dev/validate-phone-apis/numradar/249-monthly-enterprise-post-bulk/llms.txt): $0.934 per 1,000, 44% complete
- [NumRadar, contact us, Dedicated plan, POST /bulk](https://datacircle.dev/validate-phone-apis/numradar/contact-us-dedicated-plan-post-bulk/llms.txt): 44% complete

## NumRadar's calls (2)

- `POST /validate`: [NumRadar, €9 monthly, Starter, POST /validate](https://datacircle.dev/validate-phone-apis/numradar/9-monthly-starter-post-validate/llms.txt)
- `POST /bulk`: [NumRadar, €9 monthly, Starter, POST /bulk](https://datacircle.dev/validate-phone-apis/numradar/9-monthly-starter-post-bulk/llms.txt)

## NumRadar's APIs (1)

- [NumRadar: phone validation API pricing, 5 plans, POST /bulk](https://datacircle.dev/validate-phone-apis/numradar/9-monthly-starter-post-bulk/llms.txt)

## NumRadar: phone validation API alternatives

- [RealValidito, $1,000 pack](https://datacircle.dev/validate-phone-apis/realvalidito/1000-pack/llms.txt): $2.00 per 1,000, 78% complete
- [PhoneValidator, top-up, Fake Number Check](https://datacircle.dev/validate-phone-apis/phonevalidator/top-up-fake-number-check/llms.txt): $2.00 per 1,000, 22% complete
- [HLR Lookup, £900 pack, 300,000 lookups, POST /apiv2/mnp, MNP-only lookup](https://datacircle.dev/validate-phone-apis/hlr-lookup/900-pack-300000-lookups-post-apiv2-mnp/llms.txt): $2.00 per 1,000, 89% complete, live
- [HLR Lookups, top-up from €4,500, 2.5M - 5M, POST /nt-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-from-4500-2-5m-5m-post-nt-lookups/llms.txt): $2.026 per 1,000, 67% complete, stored

## 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.

- https://api.numradar.app/v1/plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app/docs.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app/pricing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://numradar.app/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing