GET
/
v1
/
files
/
{file_id}
cURL
curl "https://api.anthropic.com/v1/files/file_011CNha8iCJcU1wXNR6q4V8w" \
     -H "x-api-key: $ANTHROPIC_API_KEY" \
     -H "anthropic-version: 2023-06-01" \
     -H "anthropic-beta: files-api-2025-04-14"
{
  "created_at": "2023-11-07T05:31:56Z",
  "downloadable": false,
  "filename": "<string>",
  "id": "<string>",
  "mime_type": "<string>",
  "size_bytes": 1,
  "type": "<string>"
}
Files APIを使用すると、リクエストごとにコンテンツを再アップロードすることなく、Claude APIで使用するファイルをアップロードして管理できます。Files APIの詳細については、ファイルの開発者ガイドをご覧ください。
Files APIは現在ベータ版です。Files APIを使用するには、ベータ機能ヘッダー anthropic-beta: files-api-2025-04-14 を含める必要があります。Files APIでのご体験について、フィードバックフォームからお聞かせください。

Headers

​
anthropic-beta
string[]

Optional header to specify the beta version(s) you want to use.

To use multiple betas, use a comma separated list like beta1,beta2 or specify the header multiple times for each beta.

​
anthropic-version
string
required

The version of the Claude API you want to use.

Read more about versioning and our version history here.

​
x-api-key
string
required

Your unique API key for authentication.

This key is required in the header of all API requests, to authenticate your account and access Anthropic's services. Get your API key through the Console. Each key is scoped to a Workspace.

Path Parameters

​
file_id
string
required

ID of the File.

Response

Successful Response

​
created_at
string<date-time>
required

RFC 3339 datetime string representing when the file was created.

​
filename
string
required

Original filename of the uploaded file.

Required string length: 1 - 500
​
id
string
required

Unique object identifier.

The format and length of IDs may change over time.

​
mime_type
string
required

MIME type of the file.

Required string length: 1 - 255
​
size_bytes
integer
required

Size of the file in bytes.

Required range: x >= 0
​
type
string
required

Object type.

For files, this is always "file".

Allowed value: "file"
​
downloadable
boolean
default:false

Whether the file can be downloaded.