Get File Metadata

$ ant files retrieve-metadata

GET/v1/files/{file_id}

Get File Metadata

Parameters

--file-id: string

ID of the File.

Returns

file_metadata: 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.

formatdate-time

filename: string

Original filename of the uploaded file.

maxLength500

minLength1

mime_type: string

MIME type of the file.

maxLength255

minLength1

size_bytes: number

Size of the file in bytes.

minimum0

type: "file"

Object type.

For files, this is always "file".

downloadable: optional boolean

Whether the file can be downloaded.

expires_at: optional string

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.

formatdate-time

Get File Metadata

ant files retrieve-metadata \
  --api-key my-anthropic-api-key \
  --file-id file_id

{
  "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"
}

Returns Examples

{
  "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"
}