UltraMsg WhatsApp number check API pricing
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0% complete: none of the 6 fields on our checklistSee the 6 fields
$0.00per 1,000 phonesWe 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 costs the least per 1,000 phones: $0.043. Wawp's €39 yearly plan costs the least for 10,000 phones a month: about $3.66.
Plan: Free account 3 Days one of UltraMsg's 3 plans
Call:
GET / UltraMsg's only callAPI: WhatsApp number check API UltraMsg's only API
About this item
- A copy at most 3 days old. UltraMsg may answer from UltraMsg's stored data instead of asking WhatsApp.
- Returns none of the 6 fields on our checklist: On WhatsApp, Business account, WhatsApp profile, WhatsApp ID and 2 more.
- Nothing to pay. UltraMsg limits how many calls you get but gives no number.
- One call. You call
GET /. You send{instance_ id}/ contacts/ check instance_,id chatIdandnocache. The call returns whether the number is on WhatsApp. - Who can get it: anyone with a WhatsApp number to link to an instance by QR code. Keep data: no limit. Use data: with conditions.
UltraMsg: WhatsApp number check API alternatives
UltraMsg alternatives: other WhatsApp number check API providers by price
We list other providers' plans closest to this plan in price per 1,000 phones. Each plan in the table gives live data or data at most a week old.
| This planUltraMsg, free | Wappi, free trial, 5 days, GET /api/sync/contact/info | WhatsMCP, free | Wawp, free | WasenderAPI, free | |
|---|---|---|---|---|---|
| $ per 1,000 phones | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Completeness | 0% | 67% | 67% | 33% | 17% |
| Billing | free | free | free | free | free |
| Pay | $0 | $0 | $0 | $0 | $0 |
| Enough for | not published | no limit | no limit | not published | 3,000 calls a month |
| Freshness | 3 days | live | live | live | live |
| Who can get it | anyone with a WhatsApp number to link to an instance by QR code | a legal entity, a sole proprietor, or an individual acting for business purposes or for a business | anyone using it for the purposes of their trade, business, craft or profession and not as a consumer, aged 18 or over, with a WhatsApp number they own or may link | anyone | anyone 18 years or older with a WhatsApp number to link to a session by QR code, no credit card required |
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.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- On WhatsApp, not in the answer
- Business account, not in the answer
- WhatsApp profile, not in the answer
- WhatsApp ID, not in the answer
- Formats, not in the answer
- Place, not in the answer
| $ per 1,000 phones | $0.00 |
|---|---|
| Per | call |
| Billing | free |
| Also pays for | nothing else |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | It would be great to check if a specified phone number has WhatsApp or not to make the WhatsApp number filter. |
|---|
| Freshness | 3 days |
|---|---|
| What it checks | messaging apps |
| Keep data | no limit |
| Use data | The client undertakes to obtain in advance from the user to whom the message is to be sent consent in any form, such as oral, written,Email.etc The customer is obligated not to send any message that falls under the following items : for Spam or bulk messages, for send messages that may cause malfunction of the Developer's equipment, for sending messages via pornographic or other reprehensible messengers, for sending messages via messengers that mislead users, such as those sent from someone else's name or giving false information, for transmitting inaccurate, confidential information, for transfer of information that has been unlawfully obtained by the Customer and/or violates the copyrights or related rights of third parties, for advertising alcohol, tobacco and drugs , or other illegal means, for transmission of information that violates the norms of the current legislation or international law |
| Pay | $0 |
|---|
| Batch | 1 |
|---|
| Answer | in the call |
|---|
| You send | instance_id, chatId, nocache |
|---|---|
| Method | GET |
| Path | /{instance_id}/contacts/check |
| Plan | Free account 3 Days |
|---|---|
| Who can get it | anyone with a WhatsApp number to link to an instance by QR code |
The only field the plan's answer can hold
status