# Unifonic > Unifonic is a Saudi Arabia-based customer engagement / CPaaS platform (backed by SoftBank Vision Fund) offering SMS, WhatsApp, voice, push, and OTP verification APIs plus conversational AI products for the Middle East and beyond. REST APIs authenticate with an AppSid application credential; docs are published at docs.unifonic.com with official OpenAPI 3.0 documents behind each API reference. Generated by API Evangelist (2026-07-21, method: generated) from apis.yml and the artifacts in this repository — Unifonic publishes no /llms.txt of its own. ## APIs - [SMS API](https://docs.unifonic.com/articles/api-documentation/sms-api): Send, schedule, and query SMS messages (base https://el.cloud.unifonic.com/rest/SMS) - [Authenticate API](https://docs.unifonic.com/articles/api-documentation/unifonic-authenticate-1): OTP verification over SMS, WhatsApp, voice, and email (base https://authenticate.cloud.api.unifonic.com/services/api/v2) - [Voice API](https://docs.unifonic.com/articles/api-documentation/voice): Calls, IVR, number masking, queues, and call-status webhooks (base https://voice.unifonic.com/v1) ## Specs - [SMS API OpenAPI 3.0](https://docs.unifonic.com/resources/AutoDocsSrc/api-documentation/SMS%20API%2011.json): Official OpenAPI behind the docs Redoc renderer - [Authenticate OpenAPI 3.0](https://docs.unifonic.com/resources/AutoDocsSrc/api-documentation/Unifonic%20Authenticate11.json): Verification start/check operations - [Voice APIs OpenAPI 3.0](https://docs.unifonic.com/resources/AutoDocsSrc/api-documentation/Unifonic%20Voice%20APIs11.json): Calls, masking, queues, webhooks ## Docs - [Getting Started](https://docs.unifonic.com/articles/api-documentation/getting-started): API onboarding overview - [Security & Authentication](https://docs.unifonic.com/articles/api-documentation/security-authentication): AppSid / AppsId credential model - [HTTP Status Codes](https://docs.unifonic.com/articles/api-documentation/http-status-codes): Full error-code reference for the REST API - [Release Notes](https://docs.unifonic.com/articles/release-notes-publication/2026-release-notes): Dated monthly product/API release notes - [Webhooks](https://docs.unifonic.com/articles/products-documentation/webhooks): Delivery-status and event webhooks - [Support](https://support.unifonic.com/): Help center ## Company - [Website](https://www.unifonic.com/) - [Console](https://cloud.unifonic.com/) - [Status Page](https://status.unifonic.com/) - [Trust Centre](https://www.unifonic.com/en/legal/trust-centre) - [Privacy Policy](https://www.unifonic.com/en/privacy-policy) - [Terms and Conditions](https://www.unifonic.com/en/terms-and-conditions)