> ## Documentation Index
> Fetch the complete documentation index at: https://langchain-zh.cn/llms.txt
> Use this file to discover all available pages before exploring further.

# LangChain JavaScript 集成

> 使用 LangChain JavaScript/TypeScript 与各服务商集成。

LangChain 集成了广泛的聊天与嵌入模型、工具与工具包、文档加载器、向量存储等。

**服务商** 是指 LangChain 集成的第三方服务或平台，用于访问 AI 能力，如聊天模型、嵌入和向量存储。这些服务商拥有独立的 `langchain-provider` 包，以改进版本管理、依赖管理和测试。

## 热门服务商

| 服务商                                                                              | 包                                                                                      | 下载量                                                                   | 最新版本                                                           |
| :------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------- | :-------------------------------------------------------------------- | :------------------------------------------------------------- |
| [Anthropic](/oss/javascript/integrations/providers/anthropic)                    | [`@langchain/anthropic`](https://www.npmjs.com/package/@langchain/anthropic)           | ![Downloads](https://img.shields.io/npm/dm/@langchain/anthropic)      | ![NPM](https://img.shields.io/npm/v/@langchain/anthropic)      |
| [Azure CosmosDB](/oss/javascript/integrations/vectorstores/azure_cosmosdb_nosql) | [`@langchain/azure-cosmosdb`](https://www.npmjs.com/package/@langchain/azure-cosmosdb) | ![Downloads](https://img.shields.io/npm/dm/@langchain/azure-cosmosdb) | ![NPM](https://img.shields.io/npm/v/@langchain/azure-cosmosdb) |
| [Cerebras](/oss/javascript/integrations/chat/cerebras)                           | [`@langchain/cerebras`](https://www.npmjs.com/package/@langchain/cerebras)             | ![Downloads](https://img.shields.io/npm/dm/@langchain/cerebras)       | ![NPM](https://img.shields.io/npm/v/@langchain/cerebras)       |
| Cloudflare                                                                       | [`@langchain/cloudflare`](https://www.npmjs.com/package/@langchain/cloudflare)         | ![Downloads](https://img.shields.io/npm/dm/@langchain/cloudflare)     | ![NPM](https://img.shields.io/npm/v/@langchain/cloudflare)     |
| [Cohere](/oss/javascript/integrations/chat/cohere)                               | [`@langchain/cohere`](https://www.npmjs.com/package/@langchain/cohere)                 | ![Downloads](https://img.shields.io/npm/dm/@langchain/cohere)         | ![NPM](https://img.shields.io/npm/v/@langchain/cohere)         |
| [Exa](/oss/javascript/integrations/retrievers/exa)                               | [`langchain-exa`](https://www.npmjs.com/package/@langchain/exa)                        | ![Downloads](https://img.shields.io/npm/dm/@langchain/exa)            | ![NPM](https://img.shields.io/npm/v/@langchain/exa)            |
| [Google](/oss/javascript/integrations/providers/google)                          | [`@langchain/google`](https://www.npmjs.com/package/@langchain/google)                 | ![Downloads](https://img.shields.io/npm/dm/@langchain/google)         | ![NPM](https://img.shields.io/npm/v/@langchain/google)         |
| [Groq](/oss/javascript/integrations/chat/groq)                                   | [`@langchain/groq`](https://www.npmjs.com/package/@langchain/groq)                     | ![Downloads](https://img.shields.io/npm/dm/@langchain/groq)           | ![NPM](https://img.shields.io/npm/v/@langchain/groq)           |
| [MistralAI](/oss/javascript/integrations/chat/mistral)                           | [`@langchain/mistralai`](https://www.npmjs.com/package/@langchain/mistralai)           | ![Downloads](https://img.shields.io/npm/dm/@langchain/mistralai)      | ![NPM](https://img.shields.io/npm/v/@langchain/mistralai)      |
| [MongoDB](/oss/javascript/integrations/vectorstores/mongodb_atlas)               | [`@langchain/mongodb`](https://www.npmjs.com/package/@langchain/mongodb)               | ![Downloads](https://img.shields.io/npm/dm/@langchain/mongodb)        | ![NPM](https://img.shields.io/npm/v/@langchain/mongodb)        |
| [Nomic](/oss/javascript/integrations/embeddings/nomic)                           | [`@langchain/nomic`](https://www.npmjs.com/package/@langchain/nomic)                   | ![Downloads](https://img.shields.io/npm/dm/@langchain/nomic)          | ![NPM](https://img.shields.io/npm/v/@langchain/nomic)          |
| [OpenAI](/oss/javascript/integrations/providers/openai)                          | [`@langchain/openai`](https://www.npmjs.com/package/@langchain/openai)                 | ![Downloads](https://img.shields.io/npm/dm/@langchain/openai)         | ![NPM](https://img.shields.io/npm/v/@langchain/openai)         |
| [Pinecone](/oss/javascript/integrations/vectorstores/pinecone)                   | [`@langchain/pinecone`](https://www.npmjs.com/package/@langchain/pinecone)             | ![Downloads](https://img.shields.io/npm/dm/@langchain/pinecone)       | ![NPM](https://img.shields.io/npm/v/@langchain/pinecone)       |
| [Qdrant](/oss/javascript/integrations/vectorstores/qdrant)                       | [`@langchain/qdrant`](https://www.npmjs.com/package/@langchain/qdrant)                 | ![Downloads](https://img.shields.io/npm/dm/@langchain/qdrant)         | ![NPM](https://img.shields.io/npm/v/@langchain/qdrant)         |
| [Tavily](/oss/javascript/integrations/retrievers/tavily)                         | [`@langchain/tavily`](https://www.npmjs.com/package/@langchain/tavily)                 | ![Downloads](https://img.shields.io/npm/dm/@langchain/tavily)         | ![NPM](https://img.shields.io/npm/v/@langchain/tavily)         |
| [Weaviate](/oss/javascript/integrations/vectorstores/weaviate)                   | [`@langchain/weaviate`](https://www.npmjs.com/package/@langchain/weaviate)             | ![Downloads](https://img.shields.io/npm/dm/@langchain/weaviate)       | ![NPM](https://img.shields.io/npm/v/@langchain/weaviate)       |
| [xAI](/oss/javascript/integrations/chat/xai)                                     | [`@langchain/xai`](https://www.npmjs.com/package/@langchain/xai)                       | ![Downloads](https://img.shields.io/npm/dm/@langchain/xai)            | ![NPM](https://img.shields.io/npm/v/@langchain/xai)            |
| [Yandex](/oss/javascript/integrations/chat/yandex)                               | [`@langchain/yandex`](https://www.npmjs.com/package/@langchain/yandex)                 | ![Downloads](https://img.shields.io/npm/dm/@langchain/yandex)         | ![NPM](https://img.shields.io/npm/v/@langchain/yandex)         |

## 所有服务商

[查看所有服务商](/oss/javascript/integrations/providers/all_providers) 或使用搜索框查找服务商。

<Info>
  如果您想贡献一个集成，请参阅 [贡献集成](/oss/javascript/contributing#add-a-new-integration)。
</Info>

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