Brain v2 – A minimal and extensible agent server for building agent applications (github.com)

The announcement of Brain v2 introduces a minimal and extensible agent server designed to facilitate the development of agent applications, serving as an open-source alternative to established platforms like Claude Managed Agents and the OpenAI Agents SDK. This new software allows developers to deploy and manage agents on their own infrastructure, providing session-oriented primitives and customizable tools, which significantly empower organizations by enabling them to tailor agent functionalities to their specific needs. Brain's architecture includes features such as persistent sessions that survive client disconnects and server restarts, an ordered event stream for real-time actions, and tools that can be seamlessly integrated from various services. Key technical aspects include support for Go 1.26+, Node.js 24+, and a flexible API for interaction, highlighting its versatility for developers. Its open-source nature encourages a community-driven approach, with structured logging and observability tools, making it an attractive choice for organizations looking to maintain control over their AI solutions while ensuring high reliability and isolation of customer data.