WhatsApp
accel.kzYour login code for accel.kz:482 917. Do not share this code
WhatsApp · Telegram · OTP API
Codes land in the messenger
for 3 ₸
Cascade delivers login OTP through WhatsApp and Telegram. One REST API, pay only for successful delivery, plus 1000 ₸ to start.
01:21
Telegram
kangaroo.esl.kzYour login code for kangaroo.esl.kz:731 204. Do not share this code
SMS
kztudst.kzYour login code for kztudst.kz:294 618. Do not share this code
CASCADE / OTP APIALMATY / KAZAKHSTAN
01 / PRICING
Compare cost at your monthly volume
The comparison uses public Kazakhstan rates. Sender ID, operator and volume may change the final SMS price.
| Criterion | Cascade | Mobizon | SMSC.KZ |
|---|---|---|---|
| Price | 3 ₸WhatsApp / Telegram8 ₸SMS | 18,40 ₸avg national SMS | 17,90 ₸avg national SMS |
| Billing | Per delivery | Per send | Per send |
| Channels | WhatsApp · Telegram · SMS | SMS | SMS |
| Cascade | WA → TG → SMS | No | No |
Monthly OTP volume100
10010 000
Saved with Cascade940 ₸
Registration includes 1000 ₸ starting balance.
Start free02 / WHY CASCADE
Practical phone-verification infrastructure
Send, verify, delivery status and webhooks in one integration.
You pay in tenge under the successful-delivery rules of the selected channel.
The Bearer token never needs to enter browser or mobile code.
TTL, resend, rate limits and errors are covered in the docs.
03 / QUICK START
From signup to the first code
1
01
Register your company
Create an account and open the dashboard.
2
02
Create an API key
Store the token in backend secrets.
3
03
Send a test OTP
Call send, receive the code and verify it.
04 / DASHBOARD
Everything important in one place
No need to collect stats from spreadsheets and chats. The dashboard shows what is happening with your sends.
Overview
Good day, Arman
Sent24 891↗ 12.4%
Delivered98.7%↗ 2.1%
Average time1.28 с↘ 0.3 с
Message delivery
● WhatsApp ● Telegram ● SMS
Latest events
Balance18 640 ₸+₸1,000 for sign-up
Spent this period6 360 ₸₸3 / SMS
Paid sends2 120from balance
Recent charges
+7 701 ••• 4402
- WhatsApp Available
- Telegram Available
- SMS Available
Only a successful send is charged — ₸3 from the balance.
Send
- Number
- Channel
- Type
- Status
- Time
- Charge
- 3 ₸
05 / FAQ
The essentials
What is cascaded delivery?
The message goes to WhatsApp or Telegram first. If the messenger is unavailable, Cascade sends SMS. You pay only for a successful delivery.
Does Cascade rent virtual numbers?
No. Cascade sends codes to phone numbers belonging to your users.
06 / SOLUTIONS
Choose a channel or use case
Dedicated pages explain how Cascade fits a specific product journey.
01
WhatsApp OTP API
Send and verify codes through WhatsApp.
→02Telegram OTP API
One backend integration for Telegram.
→03OTP for SaaS
Signup, passwordless login, and recovery.
→04OTP for fintech
Additional risk-aware confirmation.
→05OTP for e-commerce
Customers, orders, and login verification.
→Blog
OTP launch checklist: from pilot to production
Full checklist for launching OTP on Cascade: API, cascade, security, monitoring, support, economics.
BlogGEO optimization of OTP documentation: answers, structure, entities
How to structure OTP documentation and blog for GEO: quick answers, FAQ, entities, internal links.
BlogWebhook OTP events
How to receive OTP webhook events: statuses, idempotency, endpoint security, cascade.
CASCADE / API
Test Cascade with your own flow
Open the dashboard and test delivery on your own flow.