Agent harnesses
Mastra
Mastra is the modern TypeScript framework for AI-powered applications and agents.
Open source + paid cloud
★ 29,445 on GitHub · +9 today · last commit Nov 10, 2026
What it is
Our note
TypeScript agent framework; built-in memory (working memory, semantic recall) + Observational Memory; ~24k stars
At a glance
- Business model
- Open source + paid cloud
- License
- Apache-2.0 core; ee/ directories under Mastra Enterprise License
GitHub activity
This product has a public repository, so we read it nightly from the GitHub API. Stars measure developer attention, not quality or market share.
“Mastra is the modern TypeScript framework for AI-powered applications and agents.” (repository description)
- Stars
- 29,445
- Change since last reading
- +9
- Forks
- 3,087
- Open issues
- 842
- Last commit
- Nov 10, 2026 (0 days ago)
- License (GitHub)
- NOASSERTION
Links and sources
- Official sitemastra.ai
- GitHub repositorygithub.com/mastra-ai/mastra
Facts verified nov 10, 2026; added nov 8, 2026. Vendor facts come from the vendor’s own pages; benchmark claims are self-reported unless we say otherwise.