Mastra: TypeScript framework for production AI agents
Mastra, an open-source TypeScript framework from the Gatsby.js team, hit v1.0 in January 2026. It bundles agents, workflows, memory, tools, evals and observability; it has 19,000+ GitHub stars and 300,000+ weekly npm downloads.
- v1.0 shipped in January 2026, built by the Gatsby.js team
- 19,000+ GitHub stars and 300,000+ weekly npm downloads
- Users include Replit, SoftBank, PayPal, Plaid and Marsh McLennan
- Telemetry is OpenTelemetry-compatible: Langfuse, Datadog, New Relic
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