Feishu Bridge

Feishu Bridge

MCP server for Feishu that enables document management, calendar CRUD, and event scheduling via Streamable HTTP transport, deployed on Vercel with OAuth and JWT authentication.

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README

Feishu Bridge

部署在 Vercel 上的飞书 MCP Server 与内容工作台。

1. 创建飞书应用

OAuth 登录仅申请一个用户权限:

  • contact:user.base:readonly(获取登录用户基本信息)

Bot/应用按需要开启业务权限:

  • drive:drive(管理应用拥有或被授权的云空间文件)
  • docx:document(创建、读取和编辑新版文档)
  • calendar:calendar(创建、读取、修改和删除共享日历)
  • calendar:calendar.event:read(读取日程)
  • calendar:calendar.event:create(创建日程)
  • calendar:calendar.event:update(编辑日程)
  • calendar:calendar.event:delete(删除日程)

业务接口全部使用应用身份,只能操作应用创建或明确共享给应用的内容,不会读取登录用户的个人云空间和私人日历。

2. 本地运行

cp .env.example .env
npm install
npm run dev

使用 openssl rand -hex 32 分别生成 AUTH_SECRETMCP_JWT_SECRET,写入 .env。两者不能相同,重启时也不要重新生成。

打开 http://localhost:3000。页面会显示当前域名对应的 OAuth 回调地址,将它加入飞书应用的重定向 URL 白名单。

3. 部署 Vercel

导入此仓库,在 Vercel 项目 Settings → Environment Variables 中添加:

FEISHU_APP_ID=cli_xxx
FEISHU_APP_SECRET=xxx
AUTH_SECRET=固定的NextAuth随机密钥
MCP_JWT_SECRET=独立的MCP随机密钥
FEISHU_ALLOWED_OPEN_IDS=ou_reader1,ou_reader2
FEISHU_ADMIN_OPEN_IDS=ou_admin

在飞书应用的「安全设置 → 重定向 URL」添加:

https://你的域名/api/auth/callback/feishu

随后重新发布飞书应用并部署。AUTH_SECRET 只负责 NextAuth 登录会话,MCP_JWT_SECRET 只负责 MCP JWT;登录后可在「MCP 接入」页生成 30、180 或 360 天有效的 JWT。

ou_xxx 是登录用户在当前飞书应用中的 open_id,不是部门 ID。用户可以完成 OAuth 身份认证,但只有允许名单可以读取内容;管理员名单自动拥有读取、创建、修改、删除及生成 MCP Token 的权限。两个名单都未配置时,登录后的所有业务操作默认拒绝。页面右上角和权限错误会显示当前用户的 open_id,便于配置名单。名单变更后,旧网页会话会在下一次请求时重新校验;已移出管理员名单的 MCP Token 也会立即失效。

JWEDecryptionFailed

这表示浏览器中的 NextAuth Cookie 由另一个 AUTH_SECRET 加密。确认 .env 和 Vercel 中的 AUTH_SECRET 没有被重新生成,然后清除本站的 next-auth.session-token / __Secure-next-auth.session-token Cookie,重新登录飞书。旧 Cookie 在密钥变化后无法恢复。

  • 修改 AUTH_SECRET:所有网页登录会话失效。
  • 修改 MCP_JWT_SECRET:所有已生成的 MCP JWT 失效,不影响网页登录。

4. 连接 MCP 客户端

  • URL:https://你的域名/api/mcp
  • Transport:Streamable HTTP
  • Header:Authorization: Bearer <JWT_TOKEN>

MCP 提供文档列表、文章 CRUD、日历 CRUD 和日程 CRUD,共 13 个工具。

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