Blog — Mar 2026 till Feb 2026
Updates, tutorials, and engineering deep-dives on building AI agents, workflows, and TypeScript tooling with Mastra.
Mastra Changelog 2026-03-17
AI Gateway tool support in the agentic loop, more reliable observational memory, MCP client diagnostics and per-server control, and improved tracing with spanId, working memory and schema fixes.
Introducing Studio Auth: Secure, Team-Friendly Access for Deployed Mastra Studios
Secure your deployed Mastra Studio with login screens, third-party identity providers, and role-based permissions.
Mastra Changelog 2026-03-13
Persistent agent workspace filesystem, observability pipeline upgrades, type-safe server route inference, lower token costs for long-running Observational Memory, and breaking changes to metrics, scores, and ObservabilityBus configuration
Mastra Changelog 2026-03-12
Cloudflare Durable Objects storage adapter,improved observability for MCP tooling, more reliable agent loops and token budgeting, sandbox and workspace extensibility via provider-specific getters and string PIDs
Mastra Changelog 2026-03-11
Dynamic model fallback arrays, Standard Schema normalization with Zod v4 compatibility, customizable request validation for server adapters, and end-to-end RequestContext support for tracing and datasets/experiments.
Safely Execute Untrusted Code with Remote Sandboxes
Three new sandbox providers for safely running agent code in isolated cloud containers.
Mastra Changelog 2026-03-05
Improve tool-call accuracy, MCP fetch hooks receive RequestContext, and reliability updates surface streaming errors, preserve history in stateless tool runs, and clean up orphaned vector embeddings.
Mastra Changelog 2026-03-04
Token-aware workspace output, smarter truncation, LSP resolution, sandbox process control, end-to-end auth and RBAC, workflow path tracking, concurrent-safe snapshots, and harness.sendMessage() file support.
Introducing Our New Course: Build Your First Agent in TypeScript
A new video course designed to get you from zero to deploying your first agent in under two hours.
Change, Run, and Compare with Experiments in Mastra Studio
Run test cases against agents and workflows, score the results, and track quality over time.
Mastra Changelog 2026-02-26
Supervisor pattern for multi-agent coordination, metadata-only vector queries, more flexible runEvals options, LSP diagnostics after workspace edits, and a new Blaxel sandbox provider.
Announcing Mastra Code: A coding agent that never compacts
An open-source TUI coding agent with observational memory that compresses context without losing it.
Ship better agents