# Optus SMS Suite 2FA REST API

**Canonical:** https://apis.io/apis/optus/optus-sms-suite-2fa-rest-api/  
**Provider:** Optus — https://apis.io/providers/optus/  
**Base URL:** https://api.sms.optus.com.au/rest/2fa  
**Documentation:** https://sms.optus.com.au/docs/en/integrations/messaging-apis/2fa/

Optus SMS Suite 2FA REST API is one of 15 APIs that [Optus](https://apis.io/providers/optus/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Two-Factor Authentication, Identity, SMS, and REST. The published artifact set on APIs.io includes API documentation.

Hosted two-factor authentication API that creates an SMS one-time-code challenge for a mobile handset with POST /challenges and validates the user's entry with POST /responses, with customisable message copy, optional alphanumeric mask, and a configurable validity window. Authenticated with HTTP Basic. No published OpenAPI definition was found.

## Machine-readable artifacts (3)

- **Documentation** — https://sms.optus.com.au/docs/en/integrations/messaging-apis/2fa/
- **AgentSkill** — https://raw.githubusercontent.com/api-evangelist/optus/refs/heads/main/skills/optus-two-factor-authentication.md
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/optus/refs/heads/main/apis.yml

## Other Optus APIs (12)

- [Optus SMS Suite REST Email API](https://apis.io/apis/optus/optus-sms-suite-rest-email-api/)
- [Optus SMS Suite HTTPS API](https://apis.io/apis/optus/optus-sms-suite-https-api/)
- [Optus SMS Suite SOAP API](https://apis.io/apis/optus/optus-sms-suite-soap-api/)
- [Optus SMS Suite MMS MM7 API](https://apis.io/apis/optus/optus-sms-suite-mms-mm7-api/)
- [Optus SMS Suite SMPP API](https://apis.io/apis/optus/optus-sms-suite-smpp-api/)
- [Optus Delete Multiple Lists API](https://apis.io/apis/optus/optus-delete-multiple-lists-api/)
- [Optus Documentation API](https://apis.io/apis/optus/optus-documentation-api/)
- [Optus Lists API](https://apis.io/apis/optus/optus-lists-api/)
- [Optus Messages API](https://apis.io/apis/optus/optus-messages-api/)
- [Optus Report API](https://apis.io/apis/optus/optus-report-api/)
- [Optus Scheduled Campaigns API](https://apis.io/apis/optus/optus-scheduled-campaigns-api/)
- [Optus Services API](https://apis.io/apis/optus/optus-services-api/)

## Tags

Two-Factor Authentication, Identity, SMS, REST

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/optus/optus-sms-suite-2fa-rest-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/optus/.