This guide outlines the implementation of Real-Time Speech-To-Text functionality in a backend built with Astro, using Agora's RESTful API to transcribe video calls in real-time and store them for later use. The backend generates tokens to secure video calls, records video calls, and transcribes them using Agora's speech-to-text service, allowing developers to build applications that can utilize this feature without exposing sensitive data directly to the application. The implementation includes generating a credential, creating a resource, and making requests to the Agora API to start and stop transcription sessions, as well as handling errors and responses from the API.