Replay: Open Source Friday with Mastra

Abhi Aiyer, CTO at Mastra, joins Open Source Friday to talk about building AI applications with TypeScript. Mastra is a TypeScript-first framework for agents, workflows, memory, tools, and MCP. Abhi covers how the project grew out of the Gatsby team's work, demos Mastra Studio with a weather agent, and walks through observability, evals, observational memory, and coding-agent primitives. 0:00 Welcome to Open Source Friday 4:17 Meet Abhi Aiyer 4:59 From Gatsby to Mastra 14:08 create-mastra and Mastra Studio 17:16 Weather agent live demo 19:15 Agent primitives and model router 20:46 Traces and observability 21:45 Scorers, evals, and datasets 31:12 Storage adapters and extensibility 32:30 Memory and observational memory 47:54 Coding agents, skills, and harness 1:00:24 Community and getting started 1:02:53 What's next for Mastra 1:05:06 Wrap-up Links Mastra GitHub: https://github.com/mastra-ai/mastra Mastra Website: https://mastra.ai/ Open Source Friday: https://opensourcefriday.com/ About Open Source Friday Every Friday, we highlight open source projects and the people building them.