Get File Metadata

FileMetadata Files.RetrieveMetadata(parameters, cancellationToken = default)

GET/v1/files/{file_id}

Get File Metadata

Parameters

FileRetrieveMetadataParams parameters

required string fileID⁠Path

ID of the File.

string workspaceID⁠Header

Optional header to select the Workspace for this request. The value is a Workspace ID (for example, wrkspc_011CZkZaBF1tNoB5wlCeusgy).

Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.

Returns

class FileMetadata { Type = "file"; ID; CreatedAt; /* 5 more */ }

JsonElement Type = "file"

Object type.

For files, this is always "file".

required string ID

Unique object identifier.

The format and length of IDs may change over time.

required DateTimeOffset CreatedAt

RFC 3339 datetime string representing when the file was created.

formatdate-time

required string Filename

Original filename of the uploaded file.

minLength1

maxLength500

required string MimeType

MIME type of the file.

minLength1

maxLength255

required long SizeBytes

Size of the file in bytes.

minimum0

bool Downloadable

Whether the file can be downloaded.

DateTimeOffset? ExpiresAt

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

using System;
using Anthropic.Models.Files;

FileRetrieveMetadataParams parameters = new() { FileID = "file_id" };

var fileMetadata = await client.Files.RetrieveMetadata(parameters);

Console.WriteLine(fileMetadata);

Response 200

{
  "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

Response 200

{
  "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"
}