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Sweep 28 Aug 2026 ยท 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

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.

One change

Get File Metadata

api/files/retrieve_metadata

first seen The page's own history The capture it came from

Nearest release: v2.1.245, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

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
 {