Mastra

TypeScript framework for building AI agents.

Verified live · 7/11/2026

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What is Mastra?

An open-source TypeScript framework for building AI agents with workflows, memory, RAG, and evals. Created by the team behind Gatsby for JavaScript-native agent development.

Pros

TypeScript-native
Workflows and evals built in
Good DX

Cons

JS/TS only
Young project

Pricing

From Free · Open source

Top Mastra alternatives

Agno — Fast, lightweight framework for multimodal agents.
CrewAI — Framework for orchestrating role-playing agent crews.
DSPy — Framework for programming, not prompting, LLMs.
Griptape — Python framework for agents, pipelines, and workflows.
Haystack — Open-source framework for LLM search and agents.
LangChain — Popular framework for building LLM apps and agents.

See the full Mastra alternatives guide →