# iBlueText, top-up: WhatsApp number check API

> BETA: check which numbers are on WhatsApp ($0.002/number, unknowns refunded).

iBlueText's Pay-as-you-go WhatsApp lookup plan for the WhatsApp number check API costs $2.00 per 1,000 phones. We check each provider's docs for 6 fields. iBlueText's docs list 1: On WhatsApp.
We haven't run a WhatsApp number check API benchmark yet.
We rank 99 plans for WhatsApp number check APIs by price. Half the plans cost $3.20 or less per 1,000 phones. This plan costs less per 1,000 phones than 55% of the 99 plans.
[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/ibluetext/top-up
- Get it: https://ibluetext.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Request: `POST https://ibluetext.com/api/v1/wa_lookup`
- API key: with the plan, on https://ibluetext.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- Its API docs: https://ibluetext.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing#apis
- Sold by: iBlueText (https://ibluetext.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: $2.00
- Per: result
- Billing: pay first

## Not found

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

## In their words

- Their pitch: BETA: check which numbers are on WhatsApp ($0.002/number, unknowns refunded).

## Data

- What it checks: messaging apps
- Keep data: no limit
- Use data: You are solely responsible for the messages you send and the contacts you message, upload, or verify. You agree that you will not: Send unsolicited messages or spam, or message anyone without the prior express written consent required by law. Violate the Telephone Consumer Protection Act (TCPA), the Telemarketing Sales Rule (TSR), CAN-SPAM, state telemarketing/messaging laws, CTIA guidelines, or mobile carrier and Apple rules. Fail to honor opt-outs. You must process STOP, UNSUBSCRIBE, and similar requests immediately and permanently. Message numbers on do-not-call/do-not-contact lists, or recipients who have revoked consent. Send content that is unlawful, fraudulent, deceptive, harassing, hateful, sexually explicit, or that promotes illegal goods/services, including the "SHAFT" categories (Sex, Hate, Alcohol, Firearms, Tobacco) where prohibited. Impersonate any person or entity or misrepresent the origin of a message. Evade filtering, rate limits, quiet-hours controls, or carrier/Apple protections, or abuse, overload, or reverse-engineer the Service.

## Speed

- Answer: by polling

## The call

- You send: numbers, Content-Type header "application/json". Optional: also_imessage
- Method: POST
- Path: /wa_lookup

## About the plan

- Plan: Pay-as-you-go WhatsApp lookup
- Who can get it: anyone at least 18 with authority to bind their business, who verifies their phone number

## The 10 fields the plan's answer can hold

job ID, job status, total numbers, completed numbers, numbers on WhatsApp, unknown numbers, linked iMessage job ID, phone number, on WhatsApp, checked

## iBlueText's plans (1)

- [iBlueText, top-up](https://datacircle.dev/check-whatsapp-apis/ibluetext/top-up/llms.txt): $2.00 per 1,000, 17% complete

## iBlueText's calls for this API (1)

- `POST /wa_lookup`: [iBlueText, top-up](https://datacircle.dev/check-whatsapp-apis/ibluetext/top-up/llms.txt)

## iBlueText's APIs (2)

- [iBlueText Phone validation API pricing, 9 plans](https://datacircle.dev/validate-phone-apis/ibluetext/free/llms.txt)
- [iBlueText WhatsApp number check API pricing, 1 plan](https://datacircle.dev/check-whatsapp-apis/ibluetext/top-up/llms.txt)

## iBlueText: WhatsApp number check API alternatives

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

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

- [WaliChat, $99.90 monthly](https://datacircle.dev/check-whatsapp-apis/walichat/99-90-monthly/llms.txt): $1.998 per 1,000, 67% complete, live
- [2Chat, $480 yearly, Basic Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number](https://datacircle.dev/check-whatsapp-apis/2chat/480-yearly-basic-plan-get-open-whatsapp-check-number-your-number-number-to-check-check-number/llms.txt): $2.00 per 1,000, 83% complete, live
- [Rapiwa, $5 monthly](https://datacircle.dev/check-whatsapp-apis/rapiwa/5-monthly/llms.txt): $2.00 per 1,000, 17% complete
- [NumRadar, €9 monthly, Starter, POST /validate](https://datacircle.dev/check-whatsapp-apis/numradar/9-monthly-starter-post-validate/llms.txt): $2.026 per 1,000, 67% 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://ibluetext.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://ibluetext.com/faq.php?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://ibluetext.com/lookup.php?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://ibluetext.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://ibluetext.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing
- https://ibluetext.com/terms.php?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=whatsapp-number-check-api-pricing