Mastra

TypeScript framework for AI agents and apps with graph-based workflows, memory, suspend-and-resume approvals, MCP servers and model routing.

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npm install @mastra/core

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About

Mastra is a TypeScript framework for building AI agents and applications, installed with npm create mastra. Agents use LLMs and tools to work toward a goal, while a graph-based workflow engine handles multi-step processes with then, branch and parallel steps. Agents and workflows can be suspended for user input or approval and resumed from stored state. It also covers conversation history, retrieval, Observational Memory, MCP servers, evals and observability, and can run inside React, Next.js or Node apps or as a standalone server.

Use cases: agent-orchestration, workflow-automation

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Fact sheet

Languages: TypeScriptREADME
Packages: @mastra/core (npm)README
Orchestration: graphREADME
MCP support: Built inREADME
Memory: short-term, vectormastra.ai
Human in the loop: YesREADME
Observability: built-in observabilityREADME
Deploys to: standalone-server, nextjs, nodejsREADME
Model providers: openai, anthropic, google, xaiREADME
Maturity: Stablegithub.com

Facts extracted by Claude Sonnet 5.5 from the linked sources on Oct 24, 2026; reviewed Oct 24, 2026. Wrong fact? Tell us.

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Signals

Stars: 29,050
Forks: 3,039
Open issues: 338
Weekly downloads: 1,442,185
Last commit: Oct 24, 2026 (6 days ago)
Last release: Oct 21, 2026 (9 days ago)
Last package publish: Oct 21, 2026 (9 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Packages: npm @mastra/core
License: Other
Repository: github.com/mastra-ai/mastra
Website: mastra.ai/
Docs: mastra.ai/docs
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: README Website Docs github-graphql

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Cite this page

Mastra. Agent Mart. https://agentmart.dev/harnesses/mastra (last updated 2026-10-24)