Mastra
Claim this toolBuild AI-powered applications and agents with a modern TypeScript stack.
Free plan available, paid tiers aboveVisit WebsiteFreemiumVisit Website
Tracked since2026
The Bottom Line
- Price
- Free plan available, paid tiers above. Compare plans
Key facts
- Framework for building AI apps and agents with TypeScript.
- Integrates with 40+ AI providers and supports autonomous agents and workflows.
- Offers production essentials like observability and integrates with existing web frameworks.
Pros
- Open-source AI framework
- TypeScript-native design
- Good for AI workflows
- Active development
Cons
- Requires developer knowledge
- Documentation still evolving
- Smaller community than alternatives
What is Mastra?
Mastra is a framework designed for developers to build AI-powered applications and agents using a modern TypeScript stack. Originating from the team behind Gatsby, it provides a comprehensive toolkit to go from initial prototypes to production-ready applications. Mastra integrates seamlessly with popular frontend and backend frameworks like React, Next.js, and Node.js, and can also be deployed as a standalone server.
The framework offers key features such as model routing to connect with over 40 AI providers (e.g., OpenAI, Anthropic, Gemini), tools for building autonomous agents that can reason and use tools to solve tasks, and a graph-based workflow engine for orchestrating complex multi-step processes. It also supports human-in-the-loop interactions, context management for agents, and various integration options for existing applications or standalone endpoints. Mastra is ideal for developers looking to build, tune, and scale reliable AI products with built-in evaluation and observability tools.
Available on: Web
Preview
Key Features
- AI application framework
- Agent building
- Workflow orchestration
- Tool integration
- TypeScript-first
- Open source
Pricing Plans
Pricing checked Sep 25, 2026
| Plan | Price | Details |
|---|---|---|
| Open Source | Free |
+1 moreShow less
|
Is Mastra worth the price?
Great value
Mastra's pricing is extremely generous, offering a full 'Open Source' tier completely free.
This makes it an excellent option for developers and small teams looking to build AI applications without upfront costs. It's best for individuals and organizations who prioritize self-hosting and community support.
Reviews
$99Free with your review
Write a reviewReview Mastra, get a free AI guide
Share your experience and we will send you Improve Your Thinking Patterns Using ChatGPT, free.
Best Mastra Alternatives
Top alternatives based on features, pricing, and user needs.
Still deciding?
Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.
Explore More
Mastra FAQ
How does Mastra facilitate the development of AI-powered applications?
Mastra provides a comprehensive TypeScript-native framework for building AI applications and agents, offering features like model routing to over 40 AI providers and tools for creating autonomous agents. It supports integration with popular frontend and backend frameworks, allowing developers to go from prototype to production.
Which teams would benefit most from using Mastra?
Teams with strong developer knowledge that are looking to build, tune, and scale reliable AI products will find Mastra most beneficial. Its TypeScript-native design and focus on AI workflows make it suitable for developers aiming for production-ready AI applications.
How does Mastra compare to LangChain for building AI agents?
Mastra, like LangChain, is an open-source AI framework designed for building AI agents and workflows. However, Mastra distinguishes itself with a TypeScript-native design and originates from the team behind Gatsby, offering a comprehensive toolkit for production-ready applications.
What kind of AI providers can Mastra connect with?
Mastra features model routing capabilities that allow it to connect with over 40 AI providers, including well-known platforms like OpenAI, Anthropic, and Gemini. This enables developers to integrate various leading AI models into their applications.
What are the main trade-offs when choosing Mastra for AI development?
A primary trade-off when using Mastra is that it requires significant developer knowledge due to its framework nature. Additionally, its documentation is still evolving, and it currently has a smaller community compared to some alternative solutions.
Does Mastra include a free tier for developers?
Yes, Mastra is available on a free tier, allowing developers to get started with building AI-powered applications. Paid plans are offered for users who require more extensive usage and additional features.
How does Mastra manage complex, multi-step AI processes?
Mastra manages complex multi-step AI processes through its graph-based workflow engine, which is designed for orchestrating these operations. It also supports human-in-the-loop interactions and context management for agents, ensuring robust workflow execution.
Source: mastra.ai