Dy Demo (Dy Mcp)

A public, unauthenticated demo of dy-mcp — an MCP personal-context server. Lets you poke at every tool the server exposes without needing to install or configure anything.

Live at: https://demo-mcp.dyuhaus.com

• Open the URL in a browser to see the Editorial-style web companion.
• Or point any MCP-aware client (Claude Desktop, Claude Code, etc.) at https://demo-mcp.dyuhaus.com/mcp — no auth header required.

The data is invented (a fictional writer-developer named "Alex Quinn") and the whole database resets every hour, so feel free to create, edit, or delete anything. You won't break it.

For the real, password-protected server this is cloned from, see dyuhaus/dy-mcp.

What's the same as dy-mcp?

Everything to do with the MCP protocol and the data model:

• Six typed contexts: project, idea, preference, writing_style, skill, general.
• All 12 tools: get_personal_context, list_contexts, get_context, add_context, update_context, delete_context, search_contexts, import_project, import_project_section, list_project_files, get_project_file, delete_project_file.
• All 7 resources under context://.
• Same SQLite schema, same storage code, same importer, same HTTP routes.

What's different?

• No auth. /auth/*, /oauth/*, /.well-known/*, session cookies, password bootstrap — all removed. /mcp is open. The web UI boots straight into the dashboard.
• Hourly reset. A scheduled task wipes the DB and reseeds it with the fictional persona (see scripts/seed.ts).
• Default port is 7879 so it can run alongside the main dy-mcp on the same machine.
• Web sidebar shows "PUBLIC DEMO" and a "resets hourly" note.

Try it from an MCP client

Claude Code

claude mcp add --transport http dy-mcp-demo https://demo-mcp.dyuhaus.com/mcp

Claude Desktop / any config-file client

{
  "mcpServers": {
    "dy-mcp-demo": {
      "transport": "http",
      "url": "https://demo-mcp.dyuhaus.com/mcp"
    }
  }
}

curl

# list all tools
curl -sS -X POST https://demo-mcp.dyuhaus.com/mcp \
  -H "content-type: application/json" \
  -H "accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

# call a tool
curl -sS -X POST https://demo-mcp.dyuhaus.com/mcp \
  -H "content-type: application/json" \
  -H "accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"get_personal_context","arguments":{}}}'

Run the demo locally

npm install
npm run build
npm run seed       # wipe + reseed the demo DB
npm run web:build
npm run start:api  # http://localhost:7879

The web UI is served at the same port as the API.

Dev loop:

npm run dev:api    # backend with tsx watch
npm run web:dev    # vite dev server on :5173

HTTP endpoints

Method	Path	Body / query
GET	/health	returns { ok, demo: true, resets_every_minutes, counts }
GET	/contexts	?type=&tag=&parent_id=&limit=&offset=
POST	/contexts	{ type, title, content?, tags?, metadata?, parent_id? }
GET	/contexts/:id	—
PATCH	/contexts/:id	any subset of the add body
DELETE	/contexts/:id	—
GET	/search	?q=&type=&limit=
GET	/activity	?limit= — in-memory ring buffer, 500 entries, newest first
GET	/export	full payload snapshot
GET	/tools	catalog of tools + resources (drives the /Tools page)
GET	/contexts/:id/files	?section=
GET	/files/:id	—
DELETE	/files/:id	—
POST	/import/project	{ path, name?, description?, tags?, include_content?, … }
POST	/import/section	{ path, section_name, parent_project_id?, … }
POST	/mcp	MCP over Streamable HTTP (stateless, single round-trip)

Hosting

The included scripts/install-demo-task.ps1 registers two Windows scheduled tasks:

1. dy-mcp-demo-api — runs the built server on :7879 at boot.
2. dy-mcp-demo-reset — runs scripts/seed.ts every hour via tsx.

Point a Cloudflare tunnel at http://localhost:7879 under the hostname of your choice. See CLAUDE.md for the exact commands.

Environment variables

Variable	Default
DY_MCP_DB_PATH	~/.dy-mcp-demo/context.db
DY_MCP_API_PORT	7879
DY_MCP_API_ORIGIN	*
DY_MCP_DEMO_RESET_MIN	60 (informational)
DY_MCP_WEB_DIST	<repo>/web/dist
VITE_API_BASE_URL	(same origin)

License

MIT.