AI Without Backend: How ClientAgentJS Works

There are hardly any browser libraries that let you integrate a conversational AI agent without relying on a backend. Most options assume there's an intermediate server handling requests and protecting credentials. With the intention of exploring that space, I started developing ClientAgentJS , a utility written in JavaScript that runs directly in the user's browser and also includes compatibility with the Model Context Protocol (MCP). The code is available on GitHub if you want to take a look.