TypeScript-native framework for building AI agents, workflows, and RAG pipelines — from the team behind Gatsby.js.
Mastra is a TypeScript framework for shipping AI agents, deterministic workflows, RAG, and memory inside any Node, Next.js, Cloudflare, or Vercel app — with a local playground that traces every run.
Mastra is the TypeScript answer to CrewAI and LangChain: a batteries-included framework for shipping agents, deterministic workflows, evaluations, and RAG inside a Node, Next.js, Cloudflare, or Vercel app. Built by the team behind Gatsby.js, Mastra gives JavaScript engineers typed agent definitions, durable workflows with retries and HITL steps, memory backed by Postgres or LibSQL, and first-class RAG utilities. Mastra is MCP-native both ways — your agents can call any MCP server and your workflows can be exposed as MCP servers.
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Mastra is best for TypeScript teams that want open-source agent infrastructure with hosted observability, evals, memory, workflows, and deployment without giving up code-level control.
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