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

# MongoDB

You can use MongoDB as a data store. This creates three new collections in the database - which are configureable.

<Note>
  MongoDB is also supported as a vector database. This is separate from that.
</Note>

## Install MongoDB addon

```bash theme={null}
npm install @llm-tools/embedjs-mongodb
```

## Usage

<CodeGroup>
  ```ts Partial example theme={null}
  import { RAGApplicationBuilder } from '@llm-tools/embedjs';
  import { MongoStore } from '@llm-tools/embedjs-mongodb';

  const app = await new RAGApplicationBuilder()
  .setStore(new MongoStore({ ... }))
  ```
</CodeGroup>

<Snippet file="missing-store-tip.mdx" />