Mastra
The Javascript framework for building AI agents, from the Gatsby devs
Abhi Aiyer, Sam Bhagwat +1 · 3 co-founders
2026series-a
Team
30
current
Co-founders
3
current
Stage
series-a
Round
$22M
led by Spark Capital
Source for series-a
Profile coverage5 of 8 · missing Signals, Customers, Stack / tools · last run 8/10/2026
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.
3 founders