Directory · Agents
Mastra
TypeScript framework for AI agents — workflows, tool calling, RAG, evals, and deploy targets tuned for full-stack JS teams.
Best for
Next.js/TS teams building agents in the same repo as the product
Pros and cons
Pros
- TypeScript-native (fits Next.js stacks)
- Workflows + agents + evals in one toolkit
- Active development, good DX
Cons
- Younger ecosystem than LangGraph
- Fewer production war stories published
- Tied to the TS/Node runtime
Alternatives
More agents tools
AutoGen
Agents · Microsoft · United States
Microsoft's open-source framework for building multi-agent AI systems where agents converse and cooperate to solve tasks.
Best for
Multi-agent research and orchestration experiments in Python or .NET
AutoGPT
Agents · Significant Gravitas · United Kingdom
Open-source platform for building and running autonomous AI agents that chain reasoning steps toward user-defined goals.
Best for
Experimenting with autonomous goal-driven agents and low-code agent blocks
Claude Agent SDK
Agents · Anthropic · United States
Anthropic's SDK for building autonomous agents on the harness behind Claude Code, with tool use, hooks, and MCP support.
Best for
Building custom coding or computer-using agents powered by Claude