上传文件
流式上传文档、媒体或 UTF-8 文本文件，最多 100 MB。
/anthropic/v1/files● 支持请求体
filestring必填◐ 部分支持Body param: The file to upload. Only the final path component of the part's `filename` is kept; an absent or empty `filename` is replaced with `unnamed` plus the extension for the file's stored `mime_type`, when known.
支持文本、PDF 和 PNG；按文件内容识别类型，不支持任意二进制。
expires_in_secondsnumber可选◐ 部分支持Body param: Seconds from upload until the file expires and its bytes become permanently unavailable. Must be between 3600 (one hour) and 7776000 (ninety days).
表单字段支持 3600–7776000 秒；作为查询参数传入返回 400，提示改放表单。
返回
200
SDK 0.128.0 上传参数为表单 file 和可选的表单 expires_in_seconds（3600–7776000 秒）。其他表单字段（包括 purpose）返回 400 invalid_request_error，消息形如 "purpose: Extra inputs are not permitted"；查询参数只接受 SDK 自带的 beta，其他查询参数返回 400，查询参数 expires_in_seconds 会提示改放表单。平台将上传文件记为 user_data；不支持 anthropic-workspace-id，请求携带该头时返回 400。
错误按 Anthropic 格式返回，参见 错误码
响应
HTTP 200
File uploaded
application/json
| 名称 | 类型 | 说明 |
|---|---|---|
| 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. |
| filename | string | Original filename of the uploaded file. |
| mime_type | string | MIME type of the file. |
| size_bytes | number | Size of the file in bytes. |
| type | string | Object type. For files, this is always `"file"`. |
| downloadable | boolean | Whether the file can be downloaded. |
| expires_at | null | string | 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. |
| scope | null | object | The scope of this file, indicating the context in which it was created (e.g., a session). |
| scope.id | string | The ID of the scoping resource (e.g., the session ID). |
| scope.type | string | The type of scope (e.g., `"session"`). |