GET
/
v1
/
files
cURL
curl "https://api.anthropic.com/v1/files" \
     -H "x-api-key: $ANTHROPIC_API_KEY" \
     -H "anthropic-version: 2023-06-01" \
     -H "anthropic-beta: files-api-2025-04-14"
{
  "data": [
    {
      "created_at": "2023-11-07T05:31:56Z",
      "downloadable": false,
      "filename": "<string>",
      "id": "<string>",
      "mime_type": "<string>",
      "size_bytes": 1,
      "type": "<string>"
    }
  ],
  "first_id": "<string>",
  "has_more": false,
  "last_id": "<string>"
}
Files APIを使用すると、各リクエストで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および管理できます。Files APIの詳細については、ファイルの開発者ガイドを参照してください。
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を含める必要があります：anthropic-beta: files-api-2025-04-14。Files APIでの体験を共有するには、フィードバックフォームからお問い合わせください。

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.

Query Parameters

​
before_id
string

ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately before this object.

​
after_id
string

ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately after this object.

​
limit
integer
default:20

Number of items to return per page.

Defaults to 20. Ranges from 1 to 1000.

Required range: 1 <= x <= 1000

Response

Successful Response

​
data
FileMetadataSchema · object[]
required

List of file metadata objects.

​
first_id
string | null

ID of the first file in this page of results.

​
has_more
boolean
default:false

Whether there are more results available.

​
last_id
string | null

ID of the last file in this page of results.