# Whapi.Cloud, free: Phone validation API

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

Whapi.Cloud's phone validation API on its Developer Sandbox plan. It costs $0.00 per 1,000 phones. It returns 1 of the 9 key fields we check: Validity.
We rank 739 plans by price. [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 [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 our benchmark.

- This page: https://datacircle.dev/validate-phone-apis/whapi-cloud/free
- [Best phone validation API in 2026: providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://whapi.cloud/price?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-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=phone-validation-api-pricing
- Its API docs: https://whapi.readme.io/reference/checkphones?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Whapi.Cloud (https://whapi.cloud?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 11%
- Validity: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

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

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $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/validate-phone-apis/whapi-cloud/free/llms.txt): $0.00 per 1,000, 11% complete, stored
- [Whapi.Cloud, $35 monthly](https://datacircle.dev/validate-phone-apis/whapi-cloud/35-monthly/llms.txt): no limit, 11% complete, stored
- [Whapi.Cloud, $348 yearly](https://datacircle.dev/validate-phone-apis/whapi-cloud/348-yearly/llms.txt): no limit, 11% complete, stored

## Whapi.Cloud's calls (1)

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

## Whapi.Cloud's APIs (1)

- [Whapi.Cloud: phone validation API pricing, 3 plans](https://datacircle.dev/validate-phone-apis/whapi-cloud/free/llms.txt)

## Whapi.Cloud: phone validation API alternatives

- [Foxentry, free trial, POST /phone/validate, Validate phone number (basic)](https://datacircle.dev/validate-phone-apis/foxentry/free-trial-post-phone-validate-validate-phone-number-basic/llms.txt): $0.00 per 1,000, 56% complete, stored
- [HLR Lookups, free, 100 free lookups, POST /nt-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-nt-lookups/llms.txt): $0.00 per 1,000, 67% complete, stored
- [seven.io, free, GET /api/lookup/format](https://datacircle.dev/validate-phone-apis/seven-io/free-get-api-lookup-format/llms.txt): $0.00 per 1,000, 56% complete, stored
- [HLR Lookup, free, 200 free credits, POST /apiv2/validate](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-apiv2-validate/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 2026-11-02.

- https://panel.whapi.cloud/yaml/openapi.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://support.whapi.cloud/help-desk/faq/checking-if-the-number-has-whatsapp?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://whapi.cloud?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://whapi.cloud/demo?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://whapi.cloud/price?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://whapi.cloud/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://whapi.cloud/whatsapp-check-numbers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://whapi.readme.io/reference/checkphones?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing