Engineering

Open Vision Agents by Stream: Open Source SDK for Building Low-Latency Vision AI Apps

Vision Agents is a new, open-source framework from Stream that helps developers quickly build low-latency vision AI applications. The project is completely open-source and ships with over ten out-of-the-box integrations, including day one support for leading real-time voice and video models like OpenAI Realtime and Gemini Live. Text-to-speech, speech-to-text, and speech-to-speech models are also natively
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4 min read

Top 5 Real-Time Speech-to-Speech APIs and Libraries To Build Voice Agents

There are two ways to build conversational voice agents for enterprise and production use cases. Developers can use a real-time API or speech-to-speech (STS), that takes audio input from a user and sends it to a large language model (LLM) to return a voice output. Or they can use a turn-based architecture, which consists of
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13 min read

Session Management Explained: Threats, Best Practices & Security Tips

Modern applications need a way to remember users as they navigate pages or make requests. Without a proper way to do this, browsing would be difficult and access to resources would be chaotic, as the application wouldn't know who is making the request.  This matters a lot, especially in messaging or in-app chat, multiplayer games,
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11 min read

AI Chatbots for eCommerce: Best Platforms, Examples & Use Cases

Throughout the eCommerce customer journey, from product discovery to post-purchase support, there are many opportunities for revenue loss. While product managers might be aware of where these leaks occur and that chatbots offer potential solutions, choosing the right provider requires a thorough analysis to find the best fit. The best eCommerce AI chatbot platforms balance
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8 min read

How Does WhatsApp Work? Architecture Deep Dive

If you're in the US, chances are WhatsApp isn't even installed on your phone. Although the Meta app surpassed 100 million monthly users in the US in 2024, WhatsApp remains a global phenomenon that has, until recently, largely bypassed the US. But if you live elsewhere in the world, WhatsApp is a fundamental part of
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7 min read

Best Cross-Platform App Development Frameworks

Is your current tech stack missing the mark? Rather than shipping new features or fine-tuning performance, your team is stuck dealing with the limitations of the framework or language(s) you're working with. Whether your previous workflow involved native or cross-platform development, you can reach and retain more users with greater ease by picking the right
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11 min read

API-First Development: Top Tools, Advantages, & Challenges

Last-minute changes and inconsistent integrations can frustrate developers. Teams often write business logic first and define application programming interfaces (APIs) later, which can lead to mismatched expectations and a worse overall product. One way to improve outcomes is to take an API-first approach, then build everything else around it. Prioritizing the API can bring many
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10 min read

How to Get Your App on the App Store & Google Play: Step-by-Step Guide

Launching an app doesn't stop with writing great code or designing a polished interface. It also requires navigating the complex requirements of the Apple App Store and Google Play Store. Each platform has its own rules, review processes, and quirks, and an overlooked detail can delay your launch. Plus, if your app uses real-time features
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18 min read