Mastra
United States, San Francisco, CA
About Mastra
Mastra is an open-source TypeScript agent framework for building AI agents and multi-agent pipelines. Used in production by companies including PayPal, Adobe, and Replit, the framework provides primitives for tool calling, workflow orchestration, retrieval-augmented generation (RAG), and agent memory. Built by the team behind Gatsby, Mastra aims to make agent development for JavaScript and TypeScript developers as accessible and composable as modern web development.
Latest Funding
Series AAnnounced 2026-04-10
Buying Signals
Where the capital is going, and whether it's already started moving.
Spend Intent
6 signals · where the capital is going
Growing team to make AI agent development mainstream with expanded framework capabilities
mastra.ai
Grow the team behind the Gatsby alumni founders to support rapidly-expanding enterprise customer base and framework roadmap
mastra.ai
+4 more capital deployment signals · confidence ratings · source articles
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1 open role · capital meeting headcount
Funding round explicitly earmarked for talent acquisition
Funding allocated to talent but few public roles; executive search likely
Top hiring departments
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Investors
Y Combinator
Lead investor · Series A
2 funding rounds total
Funding History
Full accessTech Stack
HSTS
Vercel
Vercel Analytics
Key Highlights
AI Insights$13M seed round from 120+ investors including Y Combinator, Gradient Ventures and founder angels Paul Graham and Guillermo Rauch
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Hiring Signals
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