Mastra

About

Mastra is the easiest way to build a production AI application, built by the team that brought you Gatsby. We provide a complete set of AI primitives: workflows for complex operations, agents for autonomous decisions, RAG for knowledge integration, and evals for quality & accuracy. Mastra is open-source, modular, and built in Typescript for product developers. You can deploy Mastra on any cloud, and it gives you a straightforward syntax to solve the hardest problems building with AI: human-in-the-loop workflows, agent memory and tool selection, and output quality.

Founders

• 
  Sam Bhagwat· Founder

  Founder/CEO of Mastra. Spent last ~8yrs as cofounder of Gatsby.js, an open-source React website framework, scaled to $5M ARR, sold to Netlify. Eng <20 at Zenefits (W13) and Plangrid (W12). Spent two years knocking doors. Stanford &#x27;11.

  LinkedIn ↗Twitter ↗
• 
  Abhi Aiyer· Founder

  Founder/CTO of Mastra. Principal eng & lead of >100 person eng org at Netlify. Built Gatsby Cloud infra that ran 10s of thousands of build nodes, served billions of files, and 100s of TB of monthly bandwidth.

  LinkedIn ↗Twitter ↗
• 
  Shane Thomas· Founder

  Founder/CPO of Mastra. Prev: built Audiofeed (AI podcasting). Staff eng / head of product @ Gatsby. 15+ years in open source. State wrestling champion.

  LinkedIn ↗Twitter ↗

Product launches · 1 launch

• Mastra: the open-source JavaScript framework for building agents ↗▲ 172Feb 27, 2025

  If you hate Langchain, you&#x27;ll love Mastra :)

Change history · none recorded