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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Get File Metadata

api/files/retrieve_metadata

2 recorded changes 86 lines First seen Last changed Upstream

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api/files/retrieve_metadata Changed · +20 / -15 lines

# Get File Metadata ## Path parameters ## Returns ## Example ### Response (200) ## Get File Metadata ### Path Parameters ### Returns ### Example #### Response

from line 1
----
-title: Get File Metadata
-url: https://platform.claude.com/docs/en/api/files/retrieve_metadata
----
+# Get File Metadata
 
-## Get File Metadata
+**GET** `/v1/files/{file_id}`
 
-**get** `/v1/files/{file_id}`
-
 Get File Metadata
 
-### Path Parameters
+## Path parameters
 
 - `file_id: string`
 
   ID of the File.
 
-### Returns
+## Returns
 
-- `FileMetadata object { id, created_at, filename, 5 more }`
+- `FileMetadata object`
 
   - `id: string`
 
from line 24
 
     RFC 3339 datetime string representing when the file was created.
 
+    format: date-time
+
   - `filename: string`
 
     Original filename of the uploaded file.
 
+    maxLength: 500, minLength: 1
+
   - `mime_type: string`
 
     MIME type of the file.
 
+    maxLength: 255, minLength: 1
+
   - `size_bytes: number`
 
     Size of the file in bytes.
 
+    minimum: 0
+
   - `type: "file"`
 
     Object type.
from line 50
 
     For files, this is always `"file"`.
 
-    - `"file"`
-
   - `downloadable: optional boolean`
 
     Whether the file can be downloaded.
 
+    default: false
+
   - `expires_at: optional string or null`
 
     RFC 3339 datetime string representing when the file will expire and become unavailable for download. Null if the file does not expire. For files uploaded with `expires_in_seconds`, this is the upload time plus that value.
 
-### Example
+    format: date-time
 
-```http
+## Example
+
+```bash
 curl https://api.anthropic.com/v1/files/$FILE_ID \
     -H 'anthropic-version: 2023-06-01' \
     -H "X-Api-Key: $ANTHROPIC_API_KEY"
 ```
 
-#### Response
+### Response (200)
 
 ```json
 {

api/files/retrieve_metadata New page · 81 lines, new page

## Get File Metadata ### Path Parameters ### Returns ### Example #### Response

A whole new page. There's nothing to diff it against, so here is what it says.

---
title: Get File Metadata
url: https://platform.claude.com/docs/en/api/files/retrieve_metadata
---

## Get File Metadata

**get** `/v1/files/{file_id}`

Get File Metadata

### Path Parameters

- `file_id: string`

  ID of the File.

### Returns

- `FileMetadata object { id, created_at, filename, 5 more }`

  - `id: string`

    Unique object identifier.

    The format and length of IDs may change over time.

  - `created_at: string`

    RFC 3339 datetime string representing when the file was created.

  - `filename: string`

    Original filename of the uploaded file.

  - `mime_type: string`

    MIME type of the file.

  - `size_bytes: number`

    Size of the file in bytes.

  - `type: "file"`

    Object type.

    For files, this is always `"file"`.

    - `"file"`

  - `downloadable: optional boolean`

    Whether the file can be downloaded.

  - `expires_at: optional string or null`

    RFC 3339 datetime string representing when the file will expire and become unavailable for download. Null if the file does not expire. For files uploaded with `expires_in_seconds`, this is the upload time plus that value.

### Example

```http
curl https://api.anthropic.com/v1/files/$FILE_ID \
    -H 'anthropic-version: 2023-06-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"
```

#### Response

```json
{
  "id": "file_011CNha8iCJcU1wXNR6q4V8w",
  "created_at": "2025-04-15T18:37:24.100435Z",
  "filename": "document.pdf",
  "mime_type": "application/pdf",
  "size_bytes": 102400,
  "type": "file",
  "downloadable": false,
  "expires_at": "2025-05-15T18:37:24.100435Z"
}
```