What Mastra does
Mastra (mastra.ai) is a San Francisco–based company building an open-source TypeScript framework for creating AI-powered applications and agentic workflows, plus a commercial platform for running and operating those agents in production. The open-source project provides core primitives such as agents, workflows, memory, tools, and eval/observability building blocks, with integrations designed to fit a modern TypeScript stack (e.g., React/Next.js/Node) and to be deployed either standalone or as a server.
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In addition to the framework, Mastra launched a “platform” aimed at helping teams move from local agent development to production operation. The Mastra Platform messaging emphasizes: (1) a development and evaluation UI (Mastra Studio), (2) deployment of agents/workflows as production APIs (Mastra Server), and (3) a managed “Memory Gateway” for agent state. Mastra’s differentiation (as described by the company) is that it unifies agent construction, execution, and operational visibility inside a single TypeScript framework, rather than requiring developers to stitch together multiple separate libraries. It also positions “agent learning loops” and trace-based workflows (datasets/experiments plus Trace Intelligence) as a pathway for teams to improve agent behavior over time, and it has introduced additional control and orchestration primitives such as Agent Builder (an internal agent studio with governance) and Agent Harness (a layer around an agent loop with modes, steering, approvals, and observational memory).