Cascade REST API

Cascade API key — Bearer authorization

How to create an API key in the Cascade cabinet and use Authorization Bearer for cascade.kz/api.

Cascade token balance

How to understand WhatsApp, Telegram and SMS token charges in Cascade.

Cascade API errors

HTTP codes 401, 422, 429 and the success field in Cascade OTP API responses.

Cascade API request examples

Ready curl examples for send, verify, shorten and links/send for Cascade OTP.

Cascade send history

Where to view OTP and delivery history in the Cascade cabinet.

Cascade API rate limits

Limits on OTP send frequency and verify attempts in Cascade.

Cascade API response formats

Structure of Cascade JSON responses: success, message, expires_in, short_url.

POST /otp/send — send OTP

How to send a one-time code via Cascade API: phone, purpose, channel, link.

Cascade API short links

Shorten and send links: POST /links/shorten and POST /links/send.

Cascade delivery and response statuses

How to interpret success, message and typical OTP statuses in Cascade.

Cascade balance top-up

How to top up tokens for sending OTP via WhatsApp, Telegram and SMS in Cascade.

POST /otp/verify — verify code

Verify an OTP code via Cascade API: phone, code, purpose.

Cascade Webhooks — section status

Information about Cascade OTP webhooks: rely on synchronous send/verify responses.