> For the complete documentation index, see [llms.txt](https://docs.uptiq.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uptiq.ai/document-ai/api-reference/classification/classify-in-bulk.md).

# Classify in bulk

`POST /classify/bulk` queues several files for classification.

Requires the `X-Api-Key` header.

### Request body

Send `application/json` using `ClassifyBulkRequest`.

| Property                    | Type                             | Description                                               |
| --------------------------- | -------------------------------- | --------------------------------------------------------- |
| `context`                   | array \| null                    | Per-file context. The length must match `files`.          |
| `custom_document_types`     | array \| null                    | Custom types for every file.                              |
| `custom_document_types_url` | string \| null                   | URL to custom types. Merges with `custom_document_types`. |
| `entities`                  | object \| null                   | Entity ID-to-name mapping for Excel workbooks.            |
| `files`                     | array<`ClassifyBulkRequestFile`> | Files to classify.                                        |
| `metadata`                  | array \| null                    | Per-file metadata. The length must match `files`.         |
| `model`                     | string \| null                   | Model for all files. Defaults to `gemini-3`.              |
| `use_custom_types_only`     | boolean \| null                  | Limits results to custom types for all files.             |

#### File object

`ClassifyBulkRequestFile`

| Property   | Type   | Description                  |
| ---------- | ------ | ---------------------------- |
| `content`  | string | Base64-encoded file content. |
| `file_url` | string | Public URL to the file.      |

### Responses

| Status | Description                        | Schema                 |
| ------ | ---------------------------------- | ---------------------- |
| `200`  | OK                                 | `ClassifyBulkResponse` |
| `400`  | Bad Request                        | `ValidationError`      |
| `401`  | The API key is missing or invalid. |                        |

### Example

```bash
curl -X POST "https://<api-host>/classify/bulk" \
  -H "X-Api-Key: $DOCAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
         "files": [
           { "file_url": "https://example.com/doc-1.pdf" },
           { "file_url": "https://example.com/doc-2.pdf" }
         ]
       }'
```


---

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