List Files

files.list(**kwargs) -> PageCursor<FileMetadata>

GET/v1/files

List Files

Parameters

ids: Array[String]

Restrict the result set to Files whose id is in this list. At most 100 entries (after de-duplication). Mutually exclusive with page and limit. When supplied, the response is always a single page (next_page is null). IDs that do not resolve to a visible File — including deleted Files — are silently omitted.

limit: Integer

Number of items to return per page.

Defaults to 20. Ranges from 1 to 1000.

maximum1000

minimum1

page: String

Opaque page cursor returned in a prior list response's next_page. Prefixed page_.

Returns

class FileMetadata { id, created_at, filename, 5 more }

id: String

Unique object identifier.

The format and length of IDs may change over time.

created_at: Time

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: Integer

Size of the file in bytes.

minimum0

type: :file

Object type.

For files, this is always "file".

downloadable: bool

Whether the file can be downloaded.

expires_at: Time

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

List Files

require "anthropic"

anthropic = Anthropic::Client.new(api_key: "my-anthropic-api-key")

page = anthropic.files.list

puts(page)

{
  "data": [
    {
      "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"
    }
  ],
  "next_page": "next_page"
}

Returns Examples

{
  "data": [
    {
      "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"
    }
  ],
  "next_page": "next_page"
}