Accessibility in computer applications, particularly chat-based applications, is often overlooked, but it is crucial for inclusivity, especially for users with disabilities such as visual impairments. This blog post explores how developers can enhance accessibility by integrating text-to-speech capabilities in chat applications using PubNub and Amazon Polly. By leveraging cloud-based services like Amazon Polly, developers can create real-time speech-enabled chat clients that convert incoming text messages to speech, making the content accessible to blind users. The implementation involves setting up PubNub's serverless Functions for backend support and configuring AWS Polly to generate natural speech streams. The process includes creating API keys, setting up IAM users on AWS, and using HTML5 audio tags to play speech. While the primary focus is on accessibility, this feature also presents opportunities for broader applications, such as generating voice prompts for various events or creating voice commands from predefined text messages.