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.
2
Rounds
7
Tags
Apr 10, 2026
Latest raise
Funding activity · 2 rounds
Apr 10, 2026
$22M
Series A
Led by Spark Capital
Article coming soon.
Oct 8, 2025
$13M
Seed
Led by Y Combinator
Article coming soon.
Pricing
Public hubs orient you on the raise. Paid plans unlock live AI adoption signals across your market.
For individuals and small teams getting started with AI buyer intelligence.
$149
/month
Features
For outbound teams and agencies that need more coverage and faster signal cadence.
$249
/month
Features
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