# Rapiwa, free: WhatsApp number check API

> Check whether a number is registered on WhatsApp before you send, so you protect deliverability and never waste credits on invalid contacts.

Rapiwa's Trial plan for the WhatsApp number check API costs $0.00 per 1,000 phones. We check each provider's docs for 6 fields. Rapiwa's docs list 1: On WhatsApp.
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/rapiwa/free
- Get it: https://rapiwa.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Request: Docs behind sign-up
- API key: with the plan, on https://rapiwa.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Its API docs: https://app.rapiwa.com/login?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Sold by: Rapiwa (https://rapiwa.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 17%
- On WhatsApp: ✓

## Price

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

## Charges

- Also pays for: from the same budget: Send Text Message · Send Media Message

## Not found

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

## In their words

- Their pitch: Check whether a number is registered on WhatsApp before you send, so you protect deliverability and never waste credits on invalid contacts.

## Data

- What it checks: messaging apps
- Keep data: no limit
- Use data: You agree to use Rapiwa only for lawful purposes and in compliance with these Terms. You must not: Violate any applicable laws, rules, or regulations. Use Rapiwa to send spam, illegal content, or unauthorised marketing. Interfere with the security or integrity of the Services. [...] API and SDK Usage: Rapiwa provides SDKs and API endpoints for developers. You agree to: Follow the documentation and integration guidelines. Not attempt to reverse-engineer, copy, or misuse our SDKs or API. Respect rate limits and technical constraints provided in the documentation.

## Plan

- Pay: $0
- You get: 200 credits
- Enough for: 100 calls, once

## The call

- You send: Docs behind sign-up

## About the plan

- Plan: Trial
- Who can get it: anyone

## The only field the plan's answer can hold

on WhatsApp

## Rapiwa's plans (9)

- [Rapiwa, free](https://datacircle.dev/check-whatsapp-apis/rapiwa/free/llms.txt): $0.00 per 1,000, 17% complete
- [Rapiwa, $5 monthly](https://datacircle.dev/check-whatsapp-apis/rapiwa/5-monthly/llms.txt): $2.00 per 1,000, 17% complete
- [Rapiwa, $14 monthly](https://datacircle.dev/check-whatsapp-apis/rapiwa/14-monthly/llms.txt): $1.867 per 1,000, 17% complete
- [Rapiwa, $22 monthly](https://datacircle.dev/check-whatsapp-apis/rapiwa/22-monthly/llms.txt): $1.76 per 1,000, 17% complete
- [Rapiwa, $40 monthly](https://datacircle.dev/check-whatsapp-apis/rapiwa/40-monthly/llms.txt): $0.80 per 1,000, 17% complete
- [Rapiwa, $48 yearly](https://datacircle.dev/check-whatsapp-apis/rapiwa/48-yearly/llms.txt): $1.60 per 1,000, 17% complete
- [Rapiwa, $134.40 yearly](https://datacircle.dev/check-whatsapp-apis/rapiwa/134-40-yearly/llms.txt): $1.493 per 1,000, 17% complete
- [Rapiwa, $211.20 yearly](https://datacircle.dev/check-whatsapp-apis/rapiwa/211-20-yearly/llms.txt): $1.408 per 1,000, 17% complete
- [Rapiwa, $384 yearly](https://datacircle.dev/check-whatsapp-apis/rapiwa/384-yearly/llms.txt): $0.64 per 1,000, 17% complete

## Rapiwa's calls (1)

- Docs behind sign-up: [Rapiwa, free](https://datacircle.dev/check-whatsapp-apis/rapiwa/free/llms.txt)

## Rapiwa's APIs (1)

- [Rapiwa WhatsApp number check API pricing, 9 plans](https://datacircle.dev/check-whatsapp-apis/rapiwa/free/llms.txt)

## Rapiwa: WhatsApp number check API alternatives

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

We list Rapiwa's cheapest paid plan first. Next we list other providers' plans closest to Rapiwa in price per 1,000 phones.

- [Rapiwa, $384 yearly](https://datacircle.dev/check-whatsapp-apis/rapiwa/384-yearly/llms.txt): $0.64 per 1,000, 17% complete
- [CheckNumber.AI, top-up from $20, Pay as you go, POST /v1/tasks, WhatsApp Age & Gender Checker](https://datacircle.dev/check-whatsapp-apis/checknumber-ai/top-up-from-20-pay-as-you-go-post-v1-tasks-whatsapp-age-gender-checker/llms.txt): $0.38 per 1,000, 33% complete
- [Green API, $12 monthly](https://datacircle.dev/check-whatsapp-apis/green-api/12-monthly/llms.txt): $0.40 per 1,000, 50% complete, stored
- [2Chat, $120 monthly, Pro Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number](https://datacircle.dev/check-whatsapp-apis/2chat/120-monthly-pro-plan-get-open-whatsapp-check-number-your-number-number-to-check-check-number/llms.txt): $0.60 per 1,000, 83% complete, live
- [WA Validator, $149.99 pack, Professional, POST /api/v1/validate/](https://datacircle.dev/check-whatsapp-apis/wa-validator/149-99-pack-professional-post-api-v1-validate/llms.txt): $0.60 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 2026-11-08.

- https://rapiwa.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://rapiwa.com/_nuxt/CWpPw6QU.js?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://rapiwa.com/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://rapiwa.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://rapiwa.com/refund-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://rapiwa.com/terms-condition?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing