# Listar, free: WhatsApp number check API

> Checks whether 1 to 10 numbers (+E164 format) are on WhatsApp.

Listar's Start for free plan for the WhatsApp number check API costs $0.00 per 1,000 phones. We check each provider's docs for 6 fields. Listar's docs list 3: On WhatsApp, Business account, WhatsApp profile.
We 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](https://datacircle.dev/check-whatsapp-apis/zelnum/500-pack-pay-as-you-go-500-top-up-post-detect/llms.txt) costs the least per 1,000 phones: $0.043. [Wawp's €39 yearly plan](https://datacircle.dev/check-whatsapp-apis/wawp/39-yearly/llms.txt) costs the least for 10,000 phones a month: about $3.66.

- This page: https://datacircle.dev/check-whatsapp-apis/listar/free
- Get it: https://listar.fr/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Request: `POST https://api.listar.fr/search/verify-whatsapp`
- API key: with the plan, on https://listar.fr/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Its API docs: https://api.listar.fr/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing#tag/person-enrichment/POST/search/verify-whatsapp
- Sold by: Listar (https://listar.fr?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 50%
- On WhatsApp: ✓
- Business account: ✓
- WhatsApp profile: ✓

## Price

- $ per 1,000 phones: $0.00
- Per: result
- Billing: free

## Charges

- Also pays for: from the same budget: Enrich a person · Bulk enrich (up to 10,000 contacts) · Verify emails · Verify phone ownership · Launch a company search · Launch a company list search

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Checks whether 1 to 10 numbers (+E164 format) are on WhatsApp.

## Data

- Freshness: live
- What it checks: messaging apps
- Keep data: no limit
- Use data: “Users agree to use Listar exclusively for legitimate professional purposes, including: B2B sales prospecting, CRM database enrichment, Professional recruiting, Targeted B2B marketing”, “It is strictly forbidden to use Listar to: Harass or harm individuals, Collect data for non-professional purposes, Resell data to third parties without authorization, Engage in any activity contrary to law or public order, Send mass unsolicited communications (spam)”

## Plan

- Pay: €0
- You get: 5 credits
- Enough for: 250 results

## Rate limit

- Per second: 1
- Batch: 10

## Speed

- Answer: in the call

## The call

- You send: phones
- Method: POST
- Path: /search/verify-whatsapp

## About the plan

- Plan: Start for free
- Who can get it: the first account created in an organisation, with an email address that is not disposable, from a sign-up country within Listar's commercial scope

## The 8 fields the plan's answer can hold

phone, WhatsApp, WhatsApp Business, WhatsApp name, profile picture URL, verified at, credit deducted, credit refunded

## Listar's plans (8)

- [Listar, free](https://datacircle.dev/check-whatsapp-apis/listar/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [Listar, top-up from €10](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-10/llms.txt): $22.506 per 1,000, 50% complete, live
- [Listar, top-up from €500](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-500/llms.txt): $21.381 per 1,000, 50% complete, live
- [Listar, top-up from €1,000](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-1000/llms.txt): $20.255 per 1,000, 50% complete, live
- [Listar, top-up from €10,000](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-10000/llms.txt): $18.005 per 1,000, 50% complete, live
- [Listar, top-up from €50,000](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-50000/llms.txt): $15.754 per 1,000, 50% complete, live
- [Listar, top-up from €100,000](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-100000/llms.txt): $13.504 per 1,000, 50% complete, live
- [Listar, top-up from €250,000](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-250000/llms.txt): $9.002 per 1,000, 50% complete, live

## Listar's calls for this API (1)

- `POST /search/verify-whatsapp`: [Listar, free](https://datacircle.dev/check-whatsapp-apis/listar/free/llms.txt)

## Listar's APIs (9)

- [Listar LinkedIn profile API pricing, 8 plans](https://datacircle.dev/linkedin-profile-apis/listar/free/llms.txt)
- [Listar Company discovery API pricing, 8 plans](https://datacircle.dev/company-discovery-apis/listar/free/llms.txt)
- [Listar Company enrichment API pricing, 8 plans](https://datacircle.dev/company-enrichment-apis/listar/free/llms.txt)
- [Listar Email verification API pricing, 8 plans](https://datacircle.dev/validate-email-apis/listar/free/llms.txt)
- [Listar People search API pricing, 8 plans](https://datacircle.dev/people-search-apis/listar/free/llms.txt)
- [Listar Phone validation API pricing, 8 plans](https://datacircle.dev/validate-phone-apis/listar/free-start-for-free-post-search-verify-phone-ownership/llms.txt)
- [Listar WhatsApp number check API pricing, 8 plans](https://datacircle.dev/check-whatsapp-apis/listar/free/llms.txt)
- [Listar Email finder API pricing, 8 plans, POST /search/bulk](https://datacircle.dev/find-email-apis/listar/free-start-for-free-post-search-bulk/llms.txt)
- [Listar Email finder API pricing, 8 plans, POST /search/unified](https://datacircle.dev/find-email-apis/listar/free-start-for-free-post-search-unified/llms.txt)
- [Listar Phone finder API pricing, 8 plans, POST /search/bulk](https://datacircle.dev/find-phone-apis/listar/free-start-for-free-post-search-bulk/llms.txt)
- [Listar Phone finder API pricing, 8 plans, POST /search/unified](https://datacircle.dev/find-phone-apis/listar/free-start-for-free-post-search-unified/llms.txt)

## Listar: WhatsApp number check API alternatives

[Listar alternatives: other WhatsApp number check API providers by price](https://datacircle.dev/listar-alternatives.txt)

We list Listar's cheapest paid plan first. Next we list other providers' plans closest to Listar in price per 1,000 phones. Each plan in the list gives live data.

- [Listar, top-up from €250,000](https://datacircle.dev/check-whatsapp-apis/listar/top-up-from-250000/llms.txt): $9.002 per 1,000, 50% complete, live
- [2Chat, $49 monthly, Basic Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number, full](https://datacircle.dev/check-whatsapp-apis/2chat/49-monthly-basic-plan-get-open-whatsapp-check-number-your-number-number-to-check-check-number-full/llms.txt): $4.90 per 1,000, 83% complete, live
- [WaliChat, $39.90 monthly](https://datacircle.dev/check-whatsapp-apis/walichat/39-90-monthly/llms.txt): $7.98 per 1,000, 67% complete, live
- [ProWebLook, $80 pack, WhatsApp One-Time 10K, GET /wavalidation](https://datacircle.dev/check-whatsapp-apis/proweblook/80-pack-whatsapp-one-time-10k-get-wavalidation/llms.txt): $8.00 per 1,000, 67% complete, live
- [WbizTool, $590 yearly, Standard, POST /number-checks](https://datacircle.dev/check-whatsapp-apis/wbiztool/590-yearly-standard-post-number-checks/llms.txt): $9.833 per 1,000, 17% 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 2026-11-02.

- https://api.listar.fr/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://api.listar.fr/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://listar.fr/en?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://listar.fr/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://listar.fr/en/privacy-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://listar.fr/en/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing