---
title: Knowledge
description: Upload and query documents for RAG on elizaOS Cloud.
---

# Knowledge

Upload documents and query your knowledge base for RAG applications.

## Upload Document

<div className="api-endpoint">
  <span className="method-badge method-badge-post">POST</span>
  <span className="path">/api/v1/documents/upload-file</span>
</div>

Upload one or more documents to your knowledge base using multipart form data.

### Request

Use `multipart/form-data` with the `files` field:

```bash
curl -X POST "https://elizacloud.ai/api/v1/documents/upload-file" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "files=@document.pdf" \
  -F "characterId=optional_agent_id"
```

### Parameters

| Parameter     | Type   | Required | Description                          |
| ------------- | ------ | -------- | ------------------------------------ |
| `files`       | file[] | ✓        | One or more files to upload (max 5) |
| `characterId` | string |          | Associate with a specific agent      |

### Upload Limits

| Limit                | Value         |
| -------------------- | ------------- |
| Max file size        | 5 MB per file |
| Max files per batch  | 5 files       |
| Max total batch size | 5 MB          |

### Supported Formats

| Format    | Extensions      |
| --------- | --------------- |
| PDF       | `.pdf`          |
| Text      | `.txt`, `.md`   |
| Documents | `.doc`, `.docx` |
| Web       | `.html`         |
| Data      | `.json`, `.csv` |

### Response

```json
{
  "success": true,
  "data": [
    {
      "id": "doc_abc123",
      "filename": "document.pdf",
      "type": "application/pdf",
      "size": 1048576,
      "uploadedAt": 1705312800000,
      "fragmentCount": 42,
      "status": "success"
    }
  ],
  "message": "Successfully uploaded 1 file(s)",
  "successCount": 1,
  "failedCount": 0,
  "totalCount": 1
}
```

---

## List Documents

<div className="api-endpoint">
  <span className="method-badge method-badge-get">GET</span>
  <span className="path">/api/v1/documents</span>
</div>

Get all documents in your knowledge base.

### Response

```json
{
  "documents": [
    {
      "id": "doc_abc123",
      "name": "company-handbook.pdf",
      "size": 2097152,
      "chunks": 85,
      "createdAt": "2024-01-15T10:30:00Z"
    }
  ],
  "total": 15
}
```

---

## Query Knowledge

<div className="api-endpoint">
  <span className="method-badge method-badge-get">GET</span>
  <span className="path">/api/v1/documents/query</span>
</div>

Search your knowledge base.

### Request

```json
{
  "query": "How do I reset my password?",
  "limit": 5,
  "minScore": 0.7
}
```

### Parameters

| Parameter  | Type    | Required | Description              |
| ---------- | ------- | -------- | ------------------------ |
| `query`    | string  | ✓        | Search query             |
| `limit`    | integer |          | Max results (default: 5) |
| `minScore` | number  |          | Minimum similarity (0-1) |

### Response

```json
{
  "results": [
    {
      "content": "To reset your password, go to Settings > Security > Reset Password...",
      "score": 0.92,
      "documentId": "doc_abc123",
      "documentName": "user-guide.pdf"
    }
  ]
}
```

---

## Get Document

<div className="api-endpoint">
  <span className="method-badge method-badge-get">GET</span>
  <span className="path">/api/v1/documents/{"{id}"}</span>
</div>

Get document details.

---

## Delete Document

<div className="api-endpoint">
  <span className="method-badge method-badge-delete">DELETE</span>
  <span className="path">/api/v1/documents/{"{id}"}</span>
</div>

Remove a document from your knowledge base.

---

## Check Document

<div className="api-endpoint">
  <span className="method-badge method-badge-post">POST</span>
  <span className="path">/api/v1/documents/check</span>
</div>

Check whether an agent or character has documents.

<Info>
  Documents are stored in the runtime documents table and chunked for search.
</Info>