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167 tools ranked by real usage. Stats updated 23 hours ago.
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8 tools in LLM Frameworks
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Name
Tool
Pricing
GitHub stars
npm a week
Last release
LangChain
Open source framework for building applications with language models, paired with the LangSmith platform.
Freemium
148k
3.7M
1 day ago
CrewAI
MIT-licensed Python framework for multi-agent workflows, with a paid platform for deployment.
Open source
59.8k
None
2 days ago
LlamaIndex
Open source data framework for connecting language models to your own data, plus a paid parsing platform.
Freemium
52.5k
159k
3 weeks ago
LangGraph
Low-level orchestration framework from LangChain for long-running, stateful agents.
Open source
43.3k
None
1 day ago
DSPy
Python framework from Stanford NLP for programming language model systems instead of writing prompts.
Open source
38.7k
None
4 days ago
Mastra
TypeScript framework for AI agents and workflows, Apache 2.0 licensed, with a managed platform.
Open source
28.8k
2.3M
2 days ago
Vercel AI SDK
Free open source TypeScript toolkit from Vercel for building AI apps and agents across many model providers.
Open source
27.3k
34M
1 day ago
Haystack
Open source Python framework from deepset for building LLM applications, RAG pipelines and agents.
Open source
26.7k
None
1 day ago
Developer and AI tools, ranked by real usage | ScratchDB
