YCW25· AI· DevtoolsMastra
The Javascript framework for building AI agents, from the Gatsby devs
Founders
- Sam BhagwatFounder/CEO
- Abhi AiyerFounder/CTO
- Shane ThomasFounder
Same space
Competitors
Closest in what they build, same category.
Adjacent
Overlapping tags, a different niche.
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About Mastra
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.
San Francisco, CA, USA; Remote
Mastra: questions
Which YC batch was Mastra in?
Mastra was in Y Combinator's Winter 2025 batch (W25).
Is Mastra still active?
Y Combinator lists Mastra as active.
Who founded Mastra?
Mastra's founders, as listed on its YC page: Sam Bhagwat (Founder/CEO), Abhi Aiyer (Founder/CTO), Shane Thomas (Founder).
Where is Mastra based?
Mastra lists San Francisco, CA, USA; Remote as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.