Mastra
frameworkMastra is a TypeScript-native framework for building AI agents. It provides built-in support for workflows (sequential and parallel), RAG (retrieval-augmented generation), tool use, and multi-agent coordination.
Designed for the TypeScript/Node.js ecosystem, Mastra addresses the gap left by Python-dominant frameworks like LangChain and CrewAI. It offers type-safe agent definitions, built-in observability, and integration with popular TypeScript tools and databases.
For teams building AI-powered web applications with Next.js or other TypeScript frameworks, Mastra provides agent capabilities without requiring a Python runtime or complex polyglot architectures.
Key Features
- •TypeScript-native agent framework
- •Built-in workflow engine (sequential and parallel)
- •RAG with vector store integrations
- •Multi-agent coordination support
- •Type-safe tool and agent definitions
Pros
- +TypeScript-first — no Python dependency
- +Modern developer experience
- +Built-in observability and tracing
- +Good Next.js integration
Cons
- −Newer framework — smaller ecosystem
- −Fewer integrations than LangChain
- −Community still growing