# 上传本地图片或视频

标准 URL： https://sosoapi.ai/zh-hans/docs/mcp/upload-asset

`sosoapi_upload_asset`

将本地图片或视频文件上传到工作区素材库并登记为素材。仅接受来自工作目录、临时目录、Pictures/Movies/Videos 或 SOSOAPI_UPLOAD_ROOTS 的真实 PNG/JPEG/GIF/WebP/MP4/MOV/WebM/MKV/MPEG 文件，最大 500 MiB；拒绝点号开头的文件和文件夹。返回供 Scheduled Post 媒体使用的素材 id 和 URL。

## 配置与传输方式

配置：core、full

传输方式：stdio

选择 core 或 full 以控制客户端显示的工具；这不会变更权限。本地文件上传需要 stdio，无法通过 HTTP 使用。设置 SOSOAPI_OUTPUT_SCHEMAS=1 可在探索结果加入输出schema。无论是否启用此设置，工具皆会返回结构化结果。

## 权限与副作用

注解帮助客户端描述工具。每次调用仍会检查用户身份验证、角色、资源访问和能力授权。

```json
{
  "readOnlyHint": false,
  "destructiveHint": false,
  "idempotentHint": true,
  "openWorldHint": true
}
```

`/assets-api/upload/sign` — agent:operate；synchronous_http_response

`/assets-api/upload/complete` — agent:operate；synchronous_http_response

## 输入字段

```json
{
  "type": "object",
  "properties": {
    "workspace_id": {
      "type": "string",
      "format": "uuid"
    },
    "file_path": {
      "type": "string",
      "minLength": 1
    },
    "idempotency_key": {
      "type": "string",
      "minLength": 8,
      "maxLength": 160
    },
    "content_type": {
      "type": "string",
      "minLength": 1
    },
    "title": {
      "type": "string",
      "maxLength": 200
    },
    "description": {
      "type": "string",
      "maxLength": 2000
    },
    "tags": {
      "maxItems": 50,
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 64
      }
    },
    "metadata": {
      "type": "object",
      "additionalProperties": {}
    }
  },
  "required": [
    "workspace_id",
    "file_path",
    "idempotency_key"
  ]
}
```

## 结构化输出

此 schema 描述成功工具结果中的 structuredContent。MCP 响应也包含 content，并可能在调用失败时设置 isError。对于发布，请读取帖子的最终结果，不要把获接受的请求或文字响应当作确认。链接的 API 操作说明了权限和重试规则。

```json
{
  "type": "object",
  "properties": {
    "asset": {
      "type": "object",
      "properties": {
        "id": {
          "anyOf": [
            {
              "type": "integer",
              "minimum": -9007199254740991,
              "maximum": 9007199254740991
            },
            {
              "type": "string"
            }
          ]
        },
        "workspace_id": {
          "type": "string",
          "format": "uuid"
        },
        "user_id": {
          "type": "string",
          "format": "uuid"
        },
        "asset_type": {
          "type": "string",
          "enum": [
            "text",
            "image",
            "video",
            "audio"
          ]
        },
        "asset_url": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ]
        },
        "preview_url": {
          "description": "Workspace-authorized temporary read URL. Refresh through Asset read/list after preview_expires_at; keep asset_url as persisted media identity.",
          "anyOf": [
            {
              "type": "string",
              "format": "uri"
            },
            {
              "type": "null"
            }
          ]
        },
        "preview_expires_at": {
          "anyOf": [
            {
              "type": "string",
              "format": "date-time",
              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$"
            },
            {
              "type": "null"
            }
          ]
        },
        "title": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ]
        },
        "description": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ]
        },
        "tags": {
          "anyOf": [
            {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            {
              "type": "null"
            }
          ]
        },
        "metadata": {
          "anyOf": [
            {
              "type": "object",
              "propertyNames": {
                "type": "string"
              },
              "additionalProperties": {}
            },
            {
              "type": "null"
            }
          ]
        },
        "source": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ]
        },
        "source_metadata": {
          "anyOf": [
            {
              "type": "object",
              "propertyNames": {
                "type": "string"
              },
              "additionalProperties": {}
            },
            {
              "type": "null"
            }
          ]
        },
        "created_at": {
          "type": "string"
        },
        "version": {
          "type": "integer",
          "exclusiveMinimum": 0,
          "maximum": 9007199254740991
        }
      },
      "required": [
        "id",
        "workspace_id",
        "user_id",
        "asset_type",
        "asset_url",
        "title",
        "description",
        "tags",
        "metadata",
        "created_at"
      ],
      "additionalProperties": false
    },
    "deduped": {
      "type": "boolean"
    }
  },
  "required": [
    "asset",
    "deduped"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false
}
```

## 工具调用示例

这些示例使用已依schema检查的虚构值。请将 ID 替换为你有权使用的 ID、将媒体替换为已就绪素材，并将日期替换为已确认的发布时间。提交写入前，请检查账号资格。本页不会发送 API 请求。

```json
{
  "name": "sosoapi_upload_asset",
  "arguments": {
    "workspace_id": "11111111-1111-4111-8111-111111111111",
    "file_path": "./example.png",
    "idempotency_key": "example-upload-001"
  }
}
```

structuredContent

```json
{
  "asset": {
    "id": 0,
    "workspace_id": "11111111-1111-4111-8111-111111111111",
    "user_id": "11111111-1111-4111-8111-111111111111",
    "asset_type": "text",
    "asset_url": null,
    "title": null,
    "description": null,
    "tags": null,
    "metadata": null,
    "created_at": "example"
  },
  "deduped": false
}
```

## 底层 API 操作

- [/assets-api/upload/sign](https://sosoapi.ai/zh-hans/docs/api/assets-api-upload-sign)

- [/assets-api/upload/complete](https://sosoapi.ai/zh-hans/docs/api/assets-api-upload-complete)