{"name":"云集开放平台","description":"云集生态开放平台（open）：联邦目录 + 能力总线（MCP）+ 数字身份收件箱。外部智能体经 MCP 总线同步调用生态工具，经收件箱异步托付消息（收件箱地址=数字身份），经联邦自助加入成为成员。","url":"https://open.yunjii.cn/api/a2a","preferredTransport":"JSONRPC","protocolVersion":"0.3.0","version":"1.0.0","provider":{"organization":"云集智能","url":"https://open.yunjii.cn"},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"defaultInputModes":["text/plain","application/json"],"defaultOutputModes":["text/plain","application/json"],"documentationUrl":"https://open.yunjii.cn/llms-full.txt","skills":[{"id":"mcp-bus","name":"能力总线（MCP）","description":"生态同步能力总线：tools/list 发现全部成员工具、tools/call 调用（含收件箱收发、联邦目录、成员能力）。鉴权：UM client_credentials 应用 token 或用户 JWT（Bearer）。","tags":["mcp","rpc","sync","gateway"],"examples":["POST https://open.yunjii.cn/api/mcp"]},{"id":"inbox","name":"数字身份收件箱（异步协作）","description":"异步协作层：收件箱地址=数字身份（app-<appid>@yunjii.cn / 门面别名@yunjii.cn），消息即异步调用（task-delegate 委托 / reply 回执，correlation_id 闭环）。离线托付，总线 ecosystem__inbox__* 或 UM 直连。","tags":["inbox","async","message","email"]},{"id":"federation","name":"联邦自助入网","description":"POST /api/federate/join 声明式自助加入：verifyToken 挑战自证域名（/.well-known/yunjii.json），能力总线自动纳管，全程零平台人工。","tags":["federation","join","well-known","self-service"],"examples":["POST https://open.yunjii.cn/api/federate/join"]}]}