Build LLM apps in JavaScript/TypeScript
$ npm install langchainLangChain · GitHub
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Agents, CLIs, MCP servers, libraries and prompts — ready to install.
5 tools for “llm”
One OpenAI-style API for many LLM providers
$ pip install litellmBerri AI · GitHub
Data framework for LLM apps
$ pip install llama-indexLlamaIndex · GitHub
Write MCP servers and clients in Python
$ pip install mcpModel Context Protocol · GitHub
TypeScript library for LLM apps and agents
$ npm install aiVercel · GitHub