Mastra is a TypeScript framework for building, tuning, and scaling AI applications and autonomous agents. It requires coding and depends on external LLM providers, which may incur paid service costs.
Project overview
It provides out-of-the-box TypeScript components for agents, graph-based workflows, and human-in-the-loop execution, addressing the gap between early prototypes and production-ready AI applications.
Project type
AI Agent · RAG · Workflow
Use cases
Knowledge Q&A · Audio & Speech · Automation
Deployment
Refer to project documentation
License
License pending
Best for
AI engineers who code in TypeScript and need to build, tune, and scale autonomous agents and graph-based workflows.
Key capabilities
Connect to 40+ providers through one standard interface using models from OpenAI, Anthropic, Gemini, and more.
Build autonomous agents that use LLMs and tools to solve open-ended tasks by reasoning about goals and iterating until emitting a final answer.
Orchestrate complex multi-step processes with intuitive syntax for control flow (.then(), .branch(), .parallel()).
Suspend an agent or workflow and await user input or approval before resuming using persistent storage.
Provide conversation history, retrieve data from sources, and add human-like memory (Observational Memory) for coherent agent behavior.
Author Model Context Protocol servers exposing agents, tools, and other structured resources via the MCP interface.
Tools to observe, measure, and refine continuously with built-in evals and observability.
A local UI at http://localhost:4111 to build, test, and manage agents, workflows, and tools.
Limitations and risks
Code in directories named ee/ requires a valid enterprise license for production use.
Requires connecting to external model providers which may incur paid service costs.
Getting started
Difficulty is rated as easy because the framework uses a standard npm create command for guided setup. The first success path is running npm create mastra@latest.
Evidence and sources
README: Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
README: Purpose-built for TypeScript and designed around established AI patterns, Mastra gives you everything you need to build great AI applications out-of-the-box.
README: npm create mastra@latest
README: Start Mastra Studio at http://localhost:4111. Studio = UI for build, test, manage agents, workflows, tools.
GitHub project description: Mastra is the modern TypeScript framework for AI-powered applications and agents.