List Files

GET /v1/files

List Files

Query parameters

• ids: optional array of 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: optional number

  Number of items to return per page.

  Defaults to 20. Ranges from 1 to 1000.

  default: 20, maximum: 1000, minimum: 1

• page: optional string

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

Headers

• "anthropic-workspace-id": optional string

Returns

• data: array of FileMetadata

  List of file metadata objects.

  • type: "file"

    Object type.

    For files, this is always "file".

  • id: string

    Unique object identifier.

    The format and length of IDs may change over time.

  • created_at: string

    RFC 3339 datetime string representing when the file was created.

    format: date-time

  • filename: string

    Original filename of the uploaded file.

    maxLength: 500, minLength: 1

  • mime_type: string

    MIME type of the file.

    maxLength: 255, minLength: 1

  • size_bytes: number

    Size of the file in bytes.

    minimum: 0

  • downloadable: optional boolean

    Whether the file can be downloaded.

    default: false

  • expires_at: optional string or null

    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.

    format: date-time

• next_page: optional string or null

  Opaque cursor for the next page. Supply as ?page= to fetch the next page; null when there are no more results.

Example

curl https://api.anthropic.com/v1/files \
    -H 'anthropic-version: 2023-06-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response (200)

{
  "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"
}