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ownta-mcp

OWNTA 的 MCP 服务端(stdio):把出图、图像处理、技能与百科只读封装成 Agent 可直接调用的 8 个工具。 不需要克隆本仓库,装好包 + 一把 Key 就能用。

安装

pip install ownta-mcp
# 或者
uv tool install ownta-mcp

需要 Python >= 3.10。装完会得到命令 ownta-mcp(也可以 python -m mcp_server)。

1. 拿一把 Key

登录 https://ownta.ai → 设置 → API Key → 新建。

默认 scopes 是五个值:img.gen(出图)、vid.gen、llm.chat、img.ops(图像处理)、 lib.read。只让 Agent 出图就把 img.ops 去掉;Key 建完不能改 scopes,要改只能重建。 存量 Key 会在服务端启动迁移时自动补上 img.ops / lib.read,不需要重建。

Key 等同账户权限(能出图、能扣点),不要提交进仓库或贴进公开对话。

2. 配到客户端

通用形状(Claude Desktop / Cursor 都是 mcpServers 这一层):

{
  "mcpServers": {
    "ownta": {
      "command": "ownta-mcp",
      "env": {
        "OWNTA_GW_API_KEY": "sk-ownta-...",
        "OWNTA_GW_BASE_URL": "https://ai.ownta.ai"
      }
    }
  }
}
  • Claude Desktop:%APPDATA%\Claude\claude_desktop_config.json(Windows)/ ~/Library/Application Support/Claude/claude_desktop_config.json(macOS)
  • Cursor:~/.cursor/mcp.json
  • VS Code:.vscode/mcp.json(键名是 servers,其余字段相同)

Windows 上客户端找不到 ownta-mcp 时,把 command 写成 pip 的 Scripts 全路径, 例如 C:\Users\<you>\AppData\Local\Programs\Python\Python312\Scripts\ownta-mcp.exe。

OWNTA_GW_BASE_URL 可省略,默认就是 https://ai.ownta.ai。

3. 先跑这一句

用 ownta 的 generate_image 画一只在雨林里的蓝顶亚马逊鹦鹉,1024x1024,然后轮询到出图,把图片 URL 给我。

Agent 应该先拿到 job_id,再调 query_job 取 url。第一次调用会扣点; 余额不足会收到 insufficient_credits。

工具

工具 scope 计费 说明
generate_image img.gen 按计价表扣点 提交出图(异步,立即回 job_id);支持参考图、透明底、DTF/DTG
generate_brazil_pattern img.gen 按计价表扣点 巴西 T 恤印花一步提交(10 款技能,透明底 DTF)
query_job — 免费 轮询任务状态与成品 URL,可反复调
list_skills — 免费 平台模板 + 你自己的「我的技能」
get_skill — 免费 取单个技能的提示词全文与图位清单
apply_op img.ops 按档 0~16 点(明细见下) 13 档图像处理;compress 兼做等比下采(没有 resize)
browse_library — 免费 百科知识库目录与检索(10 个域,含 nature 题材 / style 风格层)
read_library_entry — 免费 读百科正文或 references/ 附件,支持分段续读

apply_op 的 13 档按点数分四组(价目真值在网关 Price 表):

  • 0 点:compress / crop / watermark / print_text / whitebg
  • 2 点:matting / kit  4 点:seamless  5 点:upscale  6 点:seamless_pro
  • 8 点:print_extract  10 点:inpaint_swap  16 点:outpaint

apply_op 的 src 只收本站 CDN 对象(image/ uploads/ processed/ 前缀), 不收外链与 base64;generate_image 的参考图反过来只收 data URL / 裸 base64,不收 http URL。

错误码

回包 ok=false 时按 code 分支(原样透传网关的 detail.reason):

code 含义 怎么办
insufficient_credits 余额不足 充值,或换一把有余额账号的 Key
scope_forbidden 这把 Key 没有该动作的 scope apply_op 需要 img.ops,新建一把带它的 Key
rate_limited 触发 RPM / 突发 / 日封顶 按回包 retry_after 退避
content_blocked 内容审核拒了 改写提示词
invalid_request 参数或来源不合规 按 message 改;src 必须是本站对象

已知边界

  • 只有 stdio,没有远程 HTTP 端点:Agent 必须跑在能起子进程的客户端里。
  • 一次任务不等待出图;generate_image 返回后必须用 query_job 轮询。
  • stdout 是 JSON-RPC 通道,本包日志只写 stderr;不要用 print 调试。

从源码安装(开发)

cd gateway/mcp_server
pip install -e .

版本:0.1.0

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