barbaros-mcp

Hosted MCP connectors for barbaros.dev, built for the Meta Muse Connector Platform.

Read-only, unauthenticated, stateless. Nothing a request contains is stored or logged; each connector answers in memory from a public dataset over the Model Context Protocol (Streamable HTTP, JSON responses — no SSE, since Muse's egress proxy has been reported to hang on it).

Connectors

Each connector is a separate mount on the same server (mountMcp in src/server.ts), with its own rate-limit bucket and its own static brief.

Related MCP server: Datasette MCP

Develop

npm install
npm run dev        # tsx watch, http://127.0.0.1:8101
npm test            # vitest
npm run build        # tsc + copy static/fallback assets into dist/
npm start            # node dist/server.js

Environment: PORT (default 8101).

Architecture

• src/server.ts — Express app. One MCP endpoint per connector, mounted under its own path (/privacymatrix/mcp), plus static docs (/privacymatrix/muse.md, /privacymatrix/llms.txt, /privacymatrix/) and a shared /healthz.

• Each POST to an MCP endpoint creates a fresh McpServer + StreamableHTTPServerTransport (sessionIdGenerator: undefined, enableJsonResponse: true) — stateless, no session to manage, single JSON response body.

• src/connectors/<name>/data.ts — loads the connector's dataset from its public GitHub repo (raw.githubusercontent.com) on startup and every 6 hours; falls back to a bundled snapshot (fallback/*.json) if the network is unavailable, so the server never starts empty.

• src/connectors/<name>/tools.ts — the MCP tools, registered on a per-request McpServer.

See connectors/muse/<name>/ for the Meta submission pack per connector (brief, skill rules, install prompt, submission text, security note, e2e evals, icon).

Deploy (VPS)

See deploy/ for the nginx site config and pm2 process definition. Summary (full steps in uygulama_plani.md §Adım F):

1. DNS: mcp.barbaros.dev → VPS IP (Cloudflare, DNS-only).

2. git clone to /var/www/barbaros-mcp, npm ci --omit=dev, npm run build.

3. pm2 start deploy/ecosystem.config.cjs, pm2 save.

4. nginx -t with deploy/mcp.barbaros.dev.conf in sites-enabled, then reload.

5. certbot --nginx -d mcp.barbaros.dev.

6. Verify with connectors/muse/privacymatrix/EVALS.md.

License

MIT. The underlying privacymatrix dataset is also MIT.