MastraMastra
Mastra

Mastra

An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby.

2023Active49
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About
Mastra is an open-source framework designed for building AI agents using TypeScript and JavaScript. Developed by the team behind Gatsby, it provides a comprehensive suite of AI primitives, including workflows for complex operations, agents for autonomous decision-making, Retrieval Augmented Generation (RAG) for knowledge integration, and evaluation tools for quality assurance.

Technology stack

detected 2026-05-24
Est. monthly stack spend~$580/mo
CDN
Vercel
EmailGoogle Workspace
Hosting
Vercel
Stack
Next.jsTailwind CSS
Analytics
Google Analytics 4
Support
HubSpot
Performance

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Frequently asked

What does Mastra do?

Mastra is an open-source framework designed for building AI agents using TypeScript and JavaScript. Developed by the team behind Gatsby, it provides a comprehensive suite of AI primitives, including workflows for complex operations, agents for autonomous decision-making, Retrieval Augmented Generation (RAG) for knowledge integration, and evaluation tools for quality assurance.

How much funding has Mastra raised?

Mastra has raised a total of $40M in funding. The most recent round on record is Series A.

Where is Mastra headquartered?

Mastra is headquartered in San Francisco, United States.

When was Mastra founded?

Mastra was founded in 2023.

What industry does Mastra operate in?

Mastra operates in Agentic AI, AI Agents, Multi-Agent Systems, Retrieval Augmented Generation, AI Tools, Developer Tools.

How many employees does Mastra have?

Mastra has approximately 49 people on record.