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MCP 功能使用说明

功能概述

  • MCP(Model Context Protocol)让 WeKnora 可以安全地连接外部工具或数据源,扩展 Agent 在推理时可调用的能力。
  • 在前端 设置 > MCP 服务(frontend/src/views/settings/McpSettings.vue)中集中管理所有服务,无需手动改配置文件。
  • 每个服务都包含名称、传输方式(SSE / HTTP Streamable / Stdio)、连接地址或命令、认证信息以及高级超时与重试策略。

入口与界面

  • 打开控制台左侧菜单 设置 -> MCP 服务,即可看到当前空间下的所有 MCP 服务列表。
  • 列表中可快速启停服务、查看描述,并通过右侧菜单执行“测试 / 编辑 / 删除”。
  • “添加服务”按钮会弹出 McpServiceDialog,用于创建或修改服务。

常用操作流程

  1. 新建服务
    • 点击“添加服务”,填写名称与描述,选择传输方式。
    • SSE / HTTP Streamable 需提供可访问的服务 URL;Stdio 需配置 uvx/npx 命令与参数,可附加环境变量。
    • 根据需要填写 API Key、Bearer Token、超时与重试策略,保存后服务会出现在列表中。
  2. 启停服务
    • 在列表开关中切换启用状态,系统会即时调用后端 updateMCPService,失败时会自动回滚状态并弹出提示。
  3. 连接测试
    • 通过更多菜单选择“测试”,前端会调用 /api/v1/mcp-services/{id}/test 并弹出 McpTestResult。
    • 成功时会展示服务可用的工具清单(含输入 schema)和资源列表;失败时会显示错误信息,方便排查网络或鉴权问题。
  4. 编辑 / 删除
    • “编辑”会带出原有配置,修改后保存即可。
    • “删除”需要在弹窗中确认,完成后列表自动刷新。

使用建议

  • 传输方式选择:优先使用 SSE 获取流式体验;需要标准 HTTP Streamable 兼容时再切换;本地调试或离线环境适合使用 Stdio 并在同机启动 MCP Server。
  • 鉴权管理:将 API Key / Token 保存在“认证配置”中,生产环境建议单独创建最小权限 Key,并定期轮换。
  • 重试策略:对公网或第三方服务适当提高 retry_count 与 retry_delay,避免间歇性超时导致 Agent 中断