mastra-ai/mastra

What it solves

Mastra provides a unified TypeScript framework for developers to build, test, and deploy AI agents and complex workflows. It bridges the gap between early prototyping and production-ready applications by offering built-in tools for model routing, state management, and observability.

How it works

Mastra acts as an orchestration layer for AI applications. It allows developers to define autonomous agents that use LLMs and tools to solve tasks, or build graph-based workflows for explicit, multi-step process control. The framework includes a model router to interface with over 40 providers, storage capabilities to handle human-in-the-loop interactions (suspending and resuming tasks), and built-in evaluation and observability tools to monitor performance.

Who it’s for

It is designed for TypeScript developers building AI-powered applications who need a structured way to manage agent logic, tool integration, and production monitoring within environments like React, Next.js, or Node.js.

Highlights

• Model Routing: Standardized interface to access 40+ LLM providers.
• Workflow Engine: Graph-based orchestration with intuitive syntax for branching and parallel execution.
• Human-in-the-Loop: Native support for pausing and resuming workflows with persistent state.
• Production Tooling: Includes built-in evaluation, observability, and support for the Model Context Protocol (MCP).
• Mastra Studio: A dedicated interface for building, testing, and managing agents and tools.