Mastra Alternatives
TypeScript-first AI framework for building agents, RAG pipelines, and workflows
Mastra is a TypeScript-first AI framework for building agents, RAG pipelines, and structured workflows.
Explore 50 alternatives to Mastra across 2 categories. Each tool listed below shares at least one category with Mastra.
Direct alternatives to Mastra
If you came here from "mastra alternatives", you probably want another framework for building AI agents and workflows, with a similar developer experience. Mastra is TypeScript-first with built-in workflows, tools, and integrations, which narrows the field. The closest direct replacements:
- LangGraph: agent and workflow orchestration from the LangChain team. Python-first (with a TypeScript client) and the most established option in the category. Strong if your team is already in the LangChain ecosystem.
- CrewAI: Python framework for multi-agent collaboration with role-based agent design. Smaller surface area than LangGraph, easier learning curve.
- Pydantic AI: Python framework from the Pydantic team. Type-safe agent building with structured outputs as a first-class concern.
- Vercel AI SDK: TypeScript-first like Mastra, lighter weight and more focused on chat/streaming UI primitives than full agent orchestration. Good fit when the app side matters more than the workflow side.
- OpenAI Agents SDK: newer, cross-language. Tighter integration with OpenAI's tool-use and reasoning APIs.
The full list below also includes broader frameworks (LlamaIndex, Haystack), agent platforms, and orchestration tools. Useful if you are reconsidering the whole agent layer rather than swapping frameworks.
🕵️♀️ Agents
Letta
Framework for building stateful AI agents with persistent memory, formerly MemGPT
Google ADK
Open-source agent development kit from Google for building multi-agent systems
Fixie
The fastest way to build conversational AI agents
Superagent
Prototype and deploy agents powered by large language models.
Dust
The operating system for AI agents
🏗️ Frameworks & Stacks
Google ADK
Open-source agent development kit from Google for building multi-agent systems
LangChain
LangChain gives developers a framework to construct LLM‑powered apps easily.
phidata
Build an AI App in minutes using pre-built templates.
llama.cpp
LLM inference in C/C++ with broad hardware support and aggressive quantization
vLLM
High-throughput LLM inference engine with PagedAttention for efficient GPU memory usage
GPT4All
Desktop app and Python SDK for running open-source LLMs locally on any device
Jan
Open-source desktop app for running LLMs locally with a clean GUI
Frequently asked questions
What are the best alternatives to Mastra?
Based on category overlap and popularity, the top alternatives to Mastra include: AutoGen (Microsoft's framework for building multi-agent AI applications with event-dri...); CrewAI (Framework for orchestrating role-playing, autonomous AI agents.); LangGraph (Low-level framework for building stateful, long-running AI agents with graph-...); Composio (Tool integration platform connecting AI agents to 1,000+ apps with managed au...); Smolagents (Lightweight Python agent framework from Hugging Face where agents write Pytho...). See all 50 alternatives compared on this page.
Is there a free alternative to Mastra?
Yes. 29 alternatives to Mastra offer a free tier or free trial: LangGraph, Composio, OpenAI Agents SDK, Letta, Google ADK, AgentOps, and more. Use the comparison above to find the best fit for your use case.
Are there open-source alternatives to Mastra?
Yes. 41 open-source alternatives to Mastra are listed here: AutoGen, CrewAI, LangGraph, Composio, Smolagents, OpenAI Agents SDK, and more. Open-source tools can be self-hosted for full control over data and infrastructure.
What is Mastra?
Mastra is a TypeScript-first AI framework for building agents, RAG pipelines, and structured workflows. It provides assistants with tool use, workflow composition, observability, and integrations with major LLM providers. Designed for TypeScript/JavaScript developers who want type-safe AI applica... See 50 alternatives to Mastra across 2 categories.
Is your product missing?