GenSX

GenSX developed a TypeScript framework for developers building AI agents, chatbots, and long-running LLM workflows. Its components were ordinary functions that developers could compose into applications, with automatic tracing of inputs, outputs, tool calls, and model calls. GenSX Cloud, introduced in developer beta in 2025, added serverless deployment on a full Node.js runtime, with execution limits of up to 60 minutes and blob, SQL, and vector storage that agents could provision during execution.

Founder and then-CEO Evan Boyle led a project built around a React-like model for backend agents. Its technical approach used standard TypeScript rather than a dedicated workflow language: function components provided boundaries for testing, code reuse, tracing, error handling, and retries. Cloud build tools converted workflows into REST APIs supporting synchronous calls, streaming responses, and asynchronous background jobs.

The cloud launch paired a free individual tier with paid developer subscriptions and usage overages. Subsequently, Boyle announced that the GenSX team was joining Microsoft to work on GitHub Copilot agents. The official GenSX repository was archived in October 2025 and is read-only; that repository status does not establish a shutdown of the cloud service.