Mastra is an opinionated Typescript framework that helps you build AI applications and features quickly. It gives you the set of primitives you need: workflows, agents, RAG, integrations and evals. You can run Mastra on your local machine, or deploy to a serverless cloud.
The main Mastra features are:
| Features | Description |
|---|---|
| LLM Models | Mastra uses the Vercel AI SDK for model routing, providing a unified interface to interact with any LLM provider including OpenAI, Anthropic, and Google Gemini. You can choose the specific model and provider, and decide whether to stream the response. |
| Agents | Agents are systems where the language model chooses a sequence of actions. In Mastra, agents provide LLM models with tools, workflows, and synced data. Agents can call your own functions or APIs of third-party integrations and access knowledge bases you build. |
| Tools | Tools are typed functions that can be executed by agents or workflows, with built-in integration access and parameter validation. Each tool has a schema that defines its inputs, an executor function that implements its logic, and access to configured integrations. |
| Workflows | Workflows are durable graph-based state machines. They have loops, branching, wait for human input, embed other workflows, do error handling, retries, parsing and so on. They can be built in code or with a visual editor. Each step in a workflow has built-in OpenTelemetry tracing. |
| RAG | Retrieval-augement |
10 Comments
aranibatta
Congrats on launching! Curious how early the Mastra team thinks people should be thinking about evals and setting up a pipeline for them.
bobremeika
A TypeScript first AI framework is something that has been missing. How do you work with AI SDK?
yovboy
You’re awesome guys!
I had so many problems with lanchain and am very happy since switching to Mastra
jobryan
Bamfs
Gakho
Congrats on launching. I've noticed that switching prompts without edits between different LLM providers has degradation on performance. I'm wondering if you guys have noticed how developers do these "translations", I'm wondering since maybe your eval framework might have data for best practices.
realmikebernico
Congrats! This is exactly what the AI world needs. I'm thinking about using Mastra for a class I'm working on with AI Agents.
5Qn8mNbc2FNCiVV
I thought Kyle Matthews was the creator of Gatsby
harliem
Impressive. Have you seen any success with Mastra being used to build voice agents? Our company has been experimenting with VAPI, which just launched a workflow builder into open beta (https://docs.vapi.ai/workflows), but it has a lot of rough edges.
levensti
Super excited to try out the new agent memory features
_1
This looks really nice. We've been considering developing something very similar in-house. Are you guys looking at supporting MLC Web LLM, or someother local models?