LaunchedEditorial Listing

Mastra

Mastra · TypeScript AI Agent Framework

Open Mastra

An open-source TypeScript framework for building, deploying, and observing AI agents and workflows.

PricingFree

Setupmedium

Runs onSelf-hosted

APIYes

Open sourceYes

DocsYes

CategoryAgent Frameworks

Agent FrameworkTypeScriptOpen SourceNode.jsWorkflowsObservability

Best for

TypeScript-first AI agents and workflows for Node.js teams

Not ideal for

Python-first teams or those needing a visual no-code builder

Who it's for

TypeScript developers building AI agent applications within the Node.js ecosystem

Capabilities

TypeScript-native agent and workflow framework
Integrates with Next.js, Express, and Hono
Built-in observability and agent testing tools
Deploy as part of your app or as a standalone service
Context tuning and recall optimisation for agent performance

Limitations

TypeScript/JavaScript only — no Python support
Newer framework with a smaller community than Python alternatives
No visual builder — code-only
Ecosystem and integrations are still growing

Use cases

Building AI agents in TypeScript alongside existing Node.js apps
Adding agent capabilities to Next.js or Express applications
Teams that want agent development in the same language as their product
Agent workflows requiring built-in observability and testing
Deploying agents as standalone TypeScript services

Integrations & fit

Next.jsExpressHonoOpenAITypeScript

Good fit forStartup / small team, Enterprise

Pricing modelFree· No cost to start

See pricing on Mastra →

Alternatives to consider

LangGraph

LangChain

Stateful multi-agent workflows with human-in-the-loop control

Free

CrewAI

Orchestrating autonomous agent teams for enterprise tasks

Freemium

About Mastra

Mastra is an open-source TypeScript framework for building AI-powered applications and agents. It provides tools for agent orchestration, workflow definition, observability, and testing — all in TypeScript. Mastra integrates with existing Node.js frameworks like Next.js, Express, and Hono, and agents can be deployed wherever you host your application or as standalone services. The framework is Apache 2.0 licensed and designed for TypeScript-first teams who want to build agent systems in the same language as the rest of their stack rather than switching to Python. It includes built-in support for context tuning and recall optimisation to improve agent performance.

Are you the founder? Claim this listing →