---
title: "SDKs"
description: "Every Anlyon package for TypeScript and Python: the API clients, the React components, the Vercel AI SDK tools, the LangChain and LlamaIndex integrations and the MCP server, with what each one is for."
---

Anlyon publishes a client for the API in TypeScript and Python, plus packages that plug it into the frameworks your agent already uses. Each one talks to the same API with an API key that stays on your server, and each one can act for one of your users in their own accounts with `forUser()` (`for_user()` in Python).

## TypeScript

| Package | Install | What it is for |
| --- | --- | --- |
| [`@anlyonhq/sdk`](/sdks/typescript) | `npm install @anlyonhq/sdk` | The typed API client: invoke actions, act for a user, wait for approvals, read receipts, verify webhooks. |
| [`@anlyonhq/react`](/sdks/react) | `npm install @anlyonhq/react` | Prebuilt React components and hooks that let your users approve what your agent wants to do and connect their own accounts, inside your app. Beta. |
| [`@anlyonhq/ai-sdk`](/sdks/ai-sdk) | `npm install @anlyonhq/ai-sdk` | Your Anlyon actions as [Vercel AI SDK](https://ai-sdk.dev) tools, bound to one user, with connect, approval and refusal results the model can read. |
| [`@anlyonhq/mcp-server`](/agents/mcp-servers) | `npx -y @anlyonhq/mcp-server` | An MCP server over stdio or HTTP that gives an MCP client your actions as tools. Documented under Agents, with the hosted MCP server. |
| [`@anlyonhq/cli`](/cli) | `npm install -g @anlyonhq/cli` | The `anlyon` command line. Documented under CLI. |

## Python

| Package | Install | What it is for |
| --- | --- | --- |
| [`anlyon`](/sdks/python) | `pip install anlyon` | The API client, with a synchronous `Client` and an asynchronous `AsyncClient`. |
| [`anlyon-langchain`](/sdks/python-integrations) | `pip install anlyon-langchain` | Anlyon actions as LangChain tools. Used in the [LangGraph guide](/guides/langgraph). |
| [`anlyon-llamaindex`](/sdks/python-integrations) | `pip install anlyon-llamaindex` | Anlyon actions as LlamaIndex tools. |

## Which one to start with

- A TypeScript or Python server that calls actions for your agent: start with [`@anlyonhq/sdk`](/sdks/typescript) or [`anlyon`](/sdks/python).
- An app whose users approve calls or connect accounts in your UI: add [`@anlyonhq/react`](/sdks/react) on top of the TypeScript client.
- An agent built on the Vercel AI SDK: use [`@anlyonhq/ai-sdk`](/sdks/ai-sdk).
- A coding agent or MCP client: connect it to the hosted MCP server from [Agents](/agents).

Every package works against the same [API reference](/api-reference). For the keys each one needs, see [API keys and scopes](/authentication).