# Rapiwa, free: Phone validation 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 phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields: Number, Formats, Validity, Type and 5 more. Rapiwa's docs list none of the 9.
We haven't run Rapiwa through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 1,266 plans for phone validation APIs by price. Half the plans cost $3.55 or less per 1,000 phones. [See the best free phone validation API plan.](https://datacircle.dev/best-phone-validation-api.txt)
[GuGuData's CNY 124 (about $19) monthly plan](https://datacircle.dev/validate-phone-apis/gugudata/cny-124-monthly/llms.txt) is the cheapest paid plan per 1,000 phones. GuGuData's CNY 124 (about $19) monthly plan charges nothing per call. You get as many phones as GuGuData's rate limit allows. [Neutrino API's On-Demand plan](https://datacircle.dev/validate-phone-apis/neutrino-api/pay-as-you-go-on-demand/llms.txt) costs the least for 10,000 phones a month: $0.80.
[Trestle](https://datacircle.dev/validate-phone-apis/trestle/top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api/llms.txt), [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/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 the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/rapiwa/free
- [Phone validation API: the best of 50+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://rapiwa.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-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=phone-validation-api-pricing
- Its API docs: https://app.rapiwa.com/login?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Rapiwa (https://rapiwa.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 0%

## Price

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

## Aggregators

- Aggregators: none

## Charges

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

## Not found

- $ per 1,000: $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/validate-phone-apis/rapiwa/free/llms.txt): $0.00 per 1,000, 0% complete
- [Rapiwa, $5 monthly](https://datacircle.dev/validate-phone-apis/rapiwa/5-monthly/llms.txt): $2.00 per 1,000, 0% complete
- [Rapiwa, $14 monthly](https://datacircle.dev/validate-phone-apis/rapiwa/14-monthly/llms.txt): $1.867 per 1,000, 0% complete
- [Rapiwa, $22 monthly](https://datacircle.dev/validate-phone-apis/rapiwa/22-monthly/llms.txt): $1.76 per 1,000, 0% complete
- [Rapiwa, $40 monthly](https://datacircle.dev/validate-phone-apis/rapiwa/40-monthly/llms.txt): $0.80 per 1,000, 0% complete
- [Rapiwa, $48 yearly](https://datacircle.dev/validate-phone-apis/rapiwa/48-yearly/llms.txt): $1.60 per 1,000, 0% complete
- [Rapiwa, $134.40 yearly](https://datacircle.dev/validate-phone-apis/rapiwa/134-40-yearly/llms.txt): $1.493 per 1,000, 0% complete
- [Rapiwa, $211.20 yearly](https://datacircle.dev/validate-phone-apis/rapiwa/211-20-yearly/llms.txt): $1.408 per 1,000, 0% complete
- [Rapiwa, $384 yearly](https://datacircle.dev/validate-phone-apis/rapiwa/384-yearly/llms.txt): $0.64 per 1,000, 0% complete

## Rapiwa's calls (1)

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

## Rapiwa's APIs (1)

- [Rapiwa: phone validation API pricing, 9 plans](https://datacircle.dev/validate-phone-apis/rapiwa/free/llms.txt)

## Rapiwa: phone validation API alternatives

- [ZelNum, $200 pack, Pay as you go, $200 top-up, POST /detect/file, LINE Number Checker (file upload)](https://datacircle.dev/validate-phone-apis/zelnum/200-pack-pay-as-you-go-200-top-up-post-detect-file-line-number-checker-file-upload/llms.txt): $0.636 per 1,000, 11% complete
- [Reassigned Numbers Database, $19,200 monthly](https://datacircle.dev/validate-phone-apis/reassigned-numbers-database/19200-monthly/llms.txt): $0.64 per 1,000, 22% complete, 1 month
- [BigDataCloud, $649 monthly, Gold, GET /data/phone-number-validate](https://datacircle.dev/validate-phone-apis/bigdatacloud/649-monthly-gold-get-data-phone-number-validate/llms.txt): $0.649 per 1,000, 56% complete, stored
- [ProWebLook, $65 pack](https://datacircle.dev/validate-phone-apis/proweblook/65-pack/llms.txt): $0.65 per 1,000, 67% 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 2026-11-08.

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