Mastra · Mastra (Gatsby founders)
The leading TypeScript agent framework (Apache 2.0 core since July 2025; some enterprise features commercial) offering agents, type-safe workflows with suspend/resume human-in-the-loop, memory, a unified router to 3,300+ models across ~94 providers, guardrails/scorers/tracing, Mastra Studio for interactive testing, and file-based agent definitions added July 2026.
Identity
| Homepage | https://mastra.ai |
|---|---|
| Repository | https://github.com/mastra-ai/mastra |
| License | open-source |
| Domain | general |
| Form factor | sdk · web-app · cloud-service |
Model support
| Model-agnostic | ✓ yes |
|---|---|
| Native models | — |
| Local models | ✓ yes |
| Pricing | freemium |
Extensibility
| MCP client | ✓ yes |
|---|---|
| Agent Skills support | ? unknown |
| Plugins / hooks | ✓ yes |
Execution & safety
| Sandboxing | none |
|---|---|
| Autonomy spectrum | supervised → semi-autonomous → autonomous-local |
| Subagents | ✓ yes |
| Parallel sessions | ✓ yes |
| Context management | persistent-memory |
Integration & evidence
| Headless / API | ✓ yes |
|---|---|
| GitHub integration | ? unknown |
| Sources |
✓ profile last verified 2026-07-08 · benchmark figures are vendor-reported unless a source states otherwise