# Listar, free, Start for free, POST /search/verify-whatsapp: Phone validation API

> Vérifie si 1 à 10 numéros (format +E164) sont sur WhatsApp.

Listar's phone validation API on its Start for free plan, $0.00 per 1,000 phones. 2 of the 9 key fields: Number, Owner.

- This page: https://datacircle.dev/validate-phone-apis/listar/free-start-for-free-post-search-verify-whatsapp
- Get it: https://listar.fr/en/pricing
- Its API docs: https://api.listar.fr/docs#tag/person-enrichment/POST/search/verify-whatsapp
- Sold by: Listar (https://listar.fr)
- Checked: 2026-10-20

## In the answer

- Completeness: 22%
- Number: ✓
- Owner: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Per: result
- Also pays for: from the same budget: Enrichir une personne · Enrichir en masse (jusqu’à 10 000 contacts) · Vérifier des emails · Vérifier l'appartenance de numéros · Lancer une recherche entreprise

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Vérifie si 1 à 10 numéros (format +E164) sont sur WhatsApp.

## Data

- 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 (2)

- [Listar, free, Start for free, POST /search/verify-whatsapp](https://datacircle.dev/validate-phone-apis/listar/free-start-for-free-post-search-verify-whatsapp/llms.txt): $0.00 per 1,000, 22% complete
- [Listar, €10 pack, Starter, POST /search/verify-whatsapp](https://datacircle.dev/validate-phone-apis/listar/10-pack-starter-post-search-verify-whatsapp/llms.txt): $22.506 per 1,000, 22% complete

## Listar's calls (2)

- `POST /search/verify-whatsapp`: [Listar, free, Start for free, POST /search/verify-whatsapp](https://datacircle.dev/validate-phone-apis/listar/free-start-for-free-post-search-verify-whatsapp/llms.txt)
- `POST /search/verify-phone-ownership`: [Listar, free, Start for free, POST /search/verify-phone-ownership](https://datacircle.dev/validate-phone-apis/listar/free-start-for-free-post-search-verify-phone-ownership/llms.txt)

## Similar plans of other providers

- [Loqate, free](https://datacircle.dev/validate-phone-apis/loqate/free/llms.txt): $0.00 per 1,000, 78% complete, live
- [Neutrino API, free](https://datacircle.dev/validate-phone-apis/neutrino-api/free/llms.txt): $0.00 per 1,000, 67% complete
- [NumLookupAPI, free, Free, POST /v1/validate](https://datacircle.dev/validate-phone-apis/numlookupapi/free-free-post-v1-validate/llms.txt): $0.00 per 1,000, 67% complete, stored
- [Melissa, free, Monthly Top-off, GET /V4/WEB/GlobalPhone/doGlobalPhone](https://datacircle.dev/validate-phone-apis/melissa/free-monthly-top-off-get-v4-web-globalphone-doglobalphone/llms.txt): $0.00 per 1,000, 56% 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 2026-10-20.

- https://api.listar.fr/docs
- https://api.listar.fr/openapi.json
- https://listar.fr/en/pricing
- https://listar.fr/en/privacy-policy
- https://listar.fr/en/terms