# Whapi.Cloud, free: WhatsApp number check API

> Your CRM, scripts, or automations need to know which numbers can receive WhatsApp — without sending a message.

Whapi.Cloud's Developer Sandbox plan for the WhatsApp number check API costs $0.00 per 1,000 phones. We check each provider's docs for 6 fields. Whapi.Cloud's docs list 1: WhatsApp ID.
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/whapi-cloud/free
- Get it: https://whapi.cloud/price?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Request: `POST https://gate.whapi.cloud/contacts`
- API key: with the plan, on https://whapi.cloud/price?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Its API docs: https://whapi.readme.io/reference/checkphones?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Sold by: Whapi.Cloud (https://whapi.cloud?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 17%
- WhatsApp ID: ✓

## Price

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

## Charges

- Also pays for: from the same budget: 187 other Whapi.Cloud calls: 1,000 API requests per month

## Overage

- Units cap: hard

## Not found

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

## In their words

- Their pitch: Your CRM, scripts, or automations need to know which numbers can receive WhatsApp — without sending a message.

## Data

- Freshness: stored
- Countries: Worldwide
- What it checks: messaging apps
- Keep data: no limit
- Use data: 9.5. Prohibited Conduct: While using our Service, you agree not to engage in any activities that could interfere with other users' experience or the functioning of the Service. Prohibited actions include, but are not limited to: Impersonating others. Collecting personal information about other users without consent. Intimidating or harassing other users. Creating an account if you are under 13 years of age. Circumventing our security measures. [...] 9.6. Legal Compliance: You are obligated to comply with all legal requirements, including: Copyright laws. Intellectual property rights. Personal rights. International laws. Only transmitting information to users who have consented to receive it. [...] 9.9. Messaging Restrictions: These requirements are mandatory for sending any messages using Whapi.Cloud. It is prohibited to: Send spam or unsolicited bulk messages without valid recipient consent. Transmit unlawful, fraudulent, defamatory, or abusive content. Violate applicable anti-spam, data protection, or consumer protection laws. Reverse engineer, decompile, or attempt to extract source code or algorithms from the Service. Share, resell, or sublicense API access or credentials to third parties without prior written authorization from Provider. Overload, disrupt, or interfere with the security or availability of the Service or Provider's infrastructure. Transmit content that infringes third-party intellectual property or privacy rights. Use the Service to build or benchmark a competing product or service.

## Plan

- Pay: $0
- You get: 30 linked accounts a day
- Enough for: 30 results a day

## Speed

- Answer: in the call

## The call

- You send: contacts. Optional: force_check
- Method: POST
- Path: /contacts

## About the plan

- Plan: Developer Sandbox
- Who can get it: anyone with a phone with WhatsApp Business or regular WhatsApp to link to a channel by QR code

## The 3 fields the plan's answer can hold

input, status, WhatsApp ID

## Whapi.Cloud's plans (3)

- [Whapi.Cloud, free](https://datacircle.dev/check-whatsapp-apis/whapi-cloud/free/llms.txt): $0.00 per 1,000, 17% complete, stored
- [Whapi.Cloud, $35 monthly](https://datacircle.dev/check-whatsapp-apis/whapi-cloud/35-monthly/llms.txt): no limit, 17% complete, stored
- [Whapi.Cloud, $348 yearly](https://datacircle.dev/check-whatsapp-apis/whapi-cloud/348-yearly/llms.txt): no limit, 17% complete, stored

## Whapi.Cloud's calls (1)

- `POST /contacts`: [Whapi.Cloud, free](https://datacircle.dev/check-whatsapp-apis/whapi-cloud/free/llms.txt)

## Whapi.Cloud's APIs (1)

- [Whapi.Cloud WhatsApp number check API pricing, 3 plans](https://datacircle.dev/check-whatsapp-apis/whapi-cloud/free/llms.txt)

## Whapi.Cloud: WhatsApp number check API alternatives

[Whapi.Cloud alternatives: other WhatsApp number check API providers by price](https://datacircle.dev/whapi-cloud-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 phones.

- [WhatsMCP, free](https://datacircle.dev/check-whatsapp-apis/whatsmcp/free/llms.txt): $0.00 per 1,000, 67% complete, live
- [Green API, free](https://datacircle.dev/check-whatsapp-apis/green-api/free/llms.txt): $0.00 per 1,000, 50% complete, stored
- [WhatsScale, free](https://datacircle.dev/check-whatsapp-apis/whatsscale/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [WSAPI, free trial, POST /users/check](https://datacircle.dev/check-whatsapp-apis/wsapi/free-trial-post-users-check/llms.txt): $0.00 per 1,000, 33% 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://panel.whapi.cloud/yaml/openapi.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://support.whapi.cloud/help-desk/faq/checking-if-the-number-has-whatsapp?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://whapi.cloud?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://whapi.cloud/demo?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://whapi.cloud/price?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://whapi.cloud/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://whapi.cloud/whatsapp-check-numbers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://whapi.readme.io/reference/checkphones?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing