flowya-mcp

Hosted, multi-tenant MCP server that exposes each Flowya user's tasks, spaces, and weekly goals to AI clients (Cursor, Claude, Cowork).

It is a thin tool layer over the same Supabase database Flowya's macOS/iOS apps use. Every request is scoped to the calling user, so it is safe to run one shared endpoint for all users.

How it works

AI client (Cursor / Claude / Cowork)
   │  HTTPS POST /mcp  +  Authorization: Bearer fmcp_...
   ▼
flowya-mcp (Vercel)  ──service role + per-user ownership checks──▶  Supabase

• Transport: Streamable HTTP at POST /mcp (stateless: a fresh MCP server per request). A local stdio entrypoint exists for development.

• Auth (v1): Personal Access Tokens (PAT, prefix fmcp_). A user generates one from Flowya ("Connect with AI"); the client sends it as a Bearer token. See src/auth.ts.

• Isolation: the server uses the Supabase service role but scopes every query by the verified user_id and checks resource ownership (spaces/todos/goals) before any read or write. See src/api/.

Related MCP server: ctx4-ai

Tools

The server also declares instructions so agents treat Flowya as the single source of truth for tasks and prioritize by impact on goals.

Setup

1. Install: npm install

2. Create .env from .env.example:

   • FLOWYA_SUPABASE_URL, FLOWYA_SUPABASE_ANON_KEY — same values Flowya uses (VITE_SUPABASE_URL / VITE_SUPABASE_ANON_KEY).

   • SUPABASE_SERVICE_ROLE — the project's service role key (server only).

3. Apply the token table migration to the Supabase project: Flowya-MacOS/supabase/migrations/create_mcp_tokens_table.sql

4. Typecheck/build: npm run typecheck / npm run build

Run locally

• HTTP server: npm run start (defaults to :8787). Health: GET /health.

• Stdio (dev, no token — acts as one user): set FLOWYA_DEV_USER_ID and run npm run mcp.

Deploy (Vercel)

The repo is Vercel-ready:

• vercel.json builds dist/ via tsc and routes all traffic to api/index.js, which calls the shared dispatch from dist/http.js.

• Set env vars in the Vercel project: FLOWYA_SUPABASE_URL, FLOWYA_SUPABASE_ANON_KEY, SUPABASE_SERVICE_ROLE, PUBLIC_API_URL (the deployed URL).

• Deployment protection (Vercel Authentication / SSO) must be OFF so the /mcp endpoint is publicly reachable.

• Optional: point a custom domain (e.g. mcp.flowya.app) at the deployment.

Currently deployed at https://flowya-mcp.vercel.app (MCP endpoint: https://flowya-mcp.vercel.app/mcp).

vercel --prod   # from this directory, after `vercel link`

How a user connects

1. In Flowya, open Settings → Connect with AI and generate a token (fmcp_...). It is shown once.

2. Add the remote MCP server to their client with the URL https://flowya-mcp.vercel.app/mcp and header Authorization: Bearer fmcp_....

Example Cursor ~/.cursor/mcp.json:

{
  "mcpServers": {
    "flowya": {
      "url": "https://flowya-mcp.vercel.app/mcp",
      "headers": { "Authorization": "Bearer fmcp_YOUR_TOKEN" }
    }
  }
}

The Flowya desktop app talks to this server's /v1/tokens endpoints (authenticated with the user's Supabase session) to create, list, and revoke tokens. Set VITE_FLOWYA_MCP_URL in Flowya-MacOS if the MCP is not at the default https://flowya-mcp.vercel.app.

Roadmap (v2)

OAuth 2.1 (dynamic client registration + PKCE) for a one-click "Connect" experience, replacing manual token paste. The transport, tools, and api/ layer are reused unchanged; only an OAuth token-issuance layer and a consent page are added.