# client

> **Module** in `@langchain/langgraph-sdk`

📖 [View in docs](https://reference.langchain.com/javascript/langchain-langgraph-sdk/client)

## Signature

```javascript
client
```

## Methods

- [`inferChannel()`](https://reference.langchain.com/javascript/langchain-langgraph-sdk/client/inferChannel)
- [`matchesSubscription()`](https://reference.langchain.com/javascript/langchain-langgraph-sdk/client/matchesSubscription)
- [`getApiKey()`](https://reference.langchain.com/javascript/langchain-langgraph-sdk/client/getApiKey)

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[View source on GitHub](https://github.com/langchain-ai/langgraphjs/blob/4468bdf5124454d8ceaa27f07a1e22e1c76212a5/libs/sdk/src/client.ts#L1)