--- title: Quick Start --- **Prerequisite**: All Agentic packages are [ESM only](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c) and require `Node.js >= 18` or an equivalent environment (Bun, Deno, CF workers, etc). ```bash npm npm install @agentic/core zod ``` ```bash yarn yarn add @agentic/core zod ``` ```bash pnpm pnpm add @agentic/core zod ``` You can either install all of the AI tools via the convenience package `@agentic/stdlib`, or you can install them individually via their respective packages (`@agentic/weather`, `@agentic/twitter`, etc.). ```bash npm npm install @agentic/stdlib ``` ```bash yarn yarn add @agentic/stdlib ``` ```bash pnpm pnpm add @agentic/stdlib ``` Docs for individual tools are available [here](/tools). Here's an example of how to install the [Weather tool](/tools/weather): ```bash npm npm install @agentic/weather ``` ```bash yarn yarn add @agentic/weather ``` ```bash pnpm pnpm add @agentic/weather ``` There is no functional difference between using `@agentic/stdlib` versus using the individual tool packages directly. The only difference is if you want to optimize your install size (when running on serverless functions, for instance). The default examples all use `@agentic/stdlib` because it provides a simpler DX. To use Agentic with one of the supported AI SDKs, you'll also need to install its corresponding adapter package. ```bash npm npm install @agentic/ai-sdk ai ``` ```bash yarn yarn add @agentic/ai-sdk ai ``` ```bash pnpm pnpm add @agentic/ai-sdk ai ``` See the [AI SDK adapter docs](/sdks/ai-sdk) for usage details. ```bash npm npm install @agentic/langchain @langchain/core langchain ``` ```bash yarn yarn add @agentic/langchain @langchain/core langchain ``` ```bash pnpm pnpm add @agentic/langchain @langchain/core langchain ``` See the [LangChain adapter docs](/sdks/langchain) for usage details. ```bash npm npm install @agentic/llamaindex llamaindex ``` ```bash yarn yarn add @agentic/llamaindex llamaindex ``` ```bash pnpm pnpm add @agentic/llamaindex llamaindex ``` See the [LlamaIndex adapter docs](/sdks/llamaindex) for usage details. ```bash npm npm install @agentic/genkit @genkit-ai/ai @genkit-ai/core ``` ```bash yarn yarn add @agentic/genkit @genkit-ai/ai @genkit-ai/core ``` ```bash pnpm pnpm add @agentic/genkit @genkit-ai/ai @genkit-ai/core ``` See the [Genkit adapter docs](/sdks/genkit) for usage details. ```bash npm npm install @agentic/dexter @dexaai/dexter ``` ```bash yarn yarn add @agentic/dexter @dexaai/dexter ``` ```bash pnpm pnpm add @agentic/dexter @dexaai/dexter ``` See the [Dexter adapter docs](/sdks/dexter) for usage details. ```bash npm npm install openai ``` ```bash yarn yarn add openai ``` ```bash pnpm pnpm add openai ``` There's no need for a separate adapter with the OpenAI SDK since all agentic tools are compatible with OpenAI by default. You can use `AIFunctionSet.specs` for function calling or `AIFunctionSet.toolSpecs` for parallel tool calling. See the [OpenAI adapter docs](/sdks/openai) for usage details. You can use Agentic without any of these AI SDKs. `@agentic/core`, `@agentic/stdlib`, and all individual tool packages are completely agnostic to specific LLMs and AI SDKs.