Mastra
TypeScript-first agent framework with workflows, observability, and RAG.
Open source
Best for TypeScript teams building agent products that need structured workflows, built-in observability, and a developer experience that matches the modern JS/TS stack.
Selection advice
Choose Mastra when your team is TypeScript-native and you want agent orchestration that feels like a modern web framework, not a Python ML library.
Best for
- TypeScript teams
- agent workflows
- built-in observability
- RAG
Not ideal for
- Python-only teams
- projects requiring deep graph-based state machines
Core concepts
agentsworkflowsobservabilityRAGTypeScript-first
Minimal implementation shape
Define an agent with workflow steps, add RAG tools for knowledge grounding, enable observability traces, and write everything in TypeScript.