GET
/
v1
/
files
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": "file"
    }
  ],
  "first_id": "<string>",
  "has_more": false,
  "last_id": "<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、Anthropic 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、ファイルに関する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を含める必要があります：anthropic-beta: files-api-2025-04-14。

Files APIの使用経験について、フィードバックフォームからご意見をお寄せください。

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 Anthropic 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

200
application/json
Successful Response
​
data
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.