Mastra
Open-source TypeScript framework for building production-ready AI agents, workflows, and multi-agent systems.
About
Mastra is a TypeScript framework that gives developers structured building blocks for AI agents and automated workflows. You define agents with instructions, tools, memory, and a chosen language model, then wire them into graph-based pipelines using simple control flow methods. It connects to over 90 model providers through a unified interface and includes built-in observability with traces, metrics, and evaluation scorers. Mastra works with React, Next.js, and Node.js or deploys as a standalone server. The core framework is open source under Apache 2.0 and free to use, with enterprise features available under a separate commercial license.