Blog — Oct 2025 till Sep 2025
Updates, tutorials, and engineering deep-dives on building AI agents, workflows, and TypeScript tooling with Mastra.
You can suspend/resume workflows in playground
Mastra workflows now support suspend and resume in Playground. You can also use the new resumeStream API to close streams on suspend and resume them later.
Workflow State: Share Data Across Steps
Workflow state lets you share values across steps without threading them through every `inputSchema` and `outputSchema`.
The evolution of AgentNetwork
We've unified multi-agent coordination under a new .network() primitive—read about our journey, the experiments, and how you can use it to orchestrate collaborative agents simply.
Introducing Mastra Model Router: 600+ models, one API, zero package installs
Access 600+ LLM models from 40+ providers with a single string. Full TypeScript autocomplete turns your IDE into a model search engine.
Announcing our $13m seed round from YC, pg, Gradient, Amjad, Guillermo, Balaji, and 120+ others
Mastra secures $13m from a coalition of legendary investors to fuel AI agent development and production.
Migration Guide: VNext to Standard APIs
Learn how to migrate from Mastra’s VNext streaming methods to the new standard APIs, with details on renaming, compatibility, and key differences between AI SDK v4 and v5.
Mastra Changelog 2025-10-03
New model router and automatic model fallbacks.
Model fallbacks: Your safety net for production AI
Model fallbacks ensure your application stays online by automatically switching to backup models when your primary provider fails.
Mastra now supports AI Tracing
Mastra introduces AI Tracing: filter out noise and use multiple observability platforms.
Adding agent templates into existing projects
You can now easily merge Mastra agent templates into your existing projects with just a few clicks.
Mastra Changelog 2025-09-25
New streaming architecture, scoring improvements, and more.
The next evolution of Mastra streaming
We're making our new streaming architecture the default experience starting from `@mastra/core v0.19.0.`
Ship better agents