> 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/utility.md).

# Doc AI Utility

Two lookup endpoints answer the questions every integration asks first: *which document types can I name*, and *which file formats will you take*. Both are worth calling at build time rather than hardcoding, because the document-type registry grows without a release — new types are added as configuration.

### Get supported file types for all document types.

`GET /document/supported-file-types`

Requires the `X-Api-Key` header.

**Responses**

| Status | Description                                                             | Schema                       |
| ------ | ----------------------------------------------------------------------- | ---------------------------- |
| `200`  | OK                                                                      | `SupportedFileTypesResponse` |
| `400`  | Bad Request                                                             | `ValidationError`            |
| `401`  | Authentication required — the `X-Api-Key` header is missing or invalid. |                              |

**Example**

```bash
curl -X GET "https://<api-host>/document/supported-file-types" \
  -H "X-Api-Key: $DOCAI_API_KEY"
```

### List all supported document types from YAML configs.

`GET /listSupportedDocuments`

No authentication required.

**Responses**

| Status | Description | Schema                           |
| ------ | ----------- | -------------------------------- |
| `200`  | OK          | `ListSupportedDocumentsResponse` |
| `400`  | Bad Request | `ValidationError`                |

**Example**

```bash
curl -X GET "https://<api-host>/listSupportedDocuments"
```

### Related pages

* [Document Types](/document-ai/guides/document-types.md) — the same registry, categorised and annotated.


---

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