Since we started Mastra, people have asked for an agent builder. Today we’re launching one!! 🚀

Not a generic builder... but one designed for engineer-led teams.

Developers define the tools, models, and guardrails in code - everyone else uses a chat-based builder to describe the agent they want, test it, and build on top of the primitives engineering exposes.

That means PMs, ops, support, sales, and other teammates can prototype useful agents without waiting on the backlog, while engineering still controls auth, permissions, allowed tools, storage, model defaults, and cost.

Anyone can publish to an internal agent library or deploy their agent to Slack with one click (Teams coming soon!)

And should an agent outgrow the builder, you can eject it into a TypeScript project and graduate it to an engineering project. This is very unique!