demo.st MCP server

demo.st is a remote MCP server that gives an AI agent 13 tools, among them check_subdomain_availability, clear_site, create_collection. It answers at https://demo.st/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 12 September 2026; the last check, on 24 October 2026, succeeded.

Status

Answering

Tools

Official

yes, served from demo.st

Reliability

6 of 6 checks

Response time

170 ms

Transport

streamable HTTP

Last checked

24 October 2026

Reserve a subdomain, upload .zip via MCP, get a link. Optional document API at api.demo.st.

Description as the publisher wrote it.

The 13 tools demo.st offers

Tool	What it does
`check_subdomain_availability`	Check if a subdomain name is available on demo.st (e.g. "my-site" → my-site.demo.st). Inputs: name
`clear_site`	Remove deployed site content from your subdomain. Subdomain remains reserved.
`create_collection`	Create a document collection (lowercase letter start; letters, numbers, underscores; max 63 chars). Max 20 collections per site. Inputs: name
`delete_collection`	Delete a document collection and all of its records. Inputs: name
`delete_record`	Delete a record from a document collection. Inputs: collection, id
`get_site_api_key`	Get (or create) the public site API key for your reserved subdomain. Embed this key in your static site and call https://api.demo.st/v1 with Authorization: Bearer <key>. Tenant is scoped by the key — never share another site's key.
`list_collections`	List document collections for your site (api.demo.st document store).
`list_records`	List records in a document collection. Inputs: collection, limit, offset
`release_subdomain`	Release your reserved subdomain. Deletes the reservation, any deployed site, and all document DB data for that site.
`reserve_subdomain`	Reserve a subdomain for the logged-in account. One subdomain per account. Inputs: subdomain
`rotate_site_api_key`	Rotate the public site API key. The old key stops working immediately; update your site with the new key.
`upload_site`	Upload a .zip as site content for your reserved subdomain. Easiest for agents: zip_base64 (base64-encoded zip). Or file_url (public URL to zip). Or file_path (local path, when MCP runs locally). Inputs: zip_base64, file_url, file_path
`upsert_record`	Create or update a JSON record in a collection. Pass data as an object. Optional id to upsert a specific record. Inputs: collection, data, id

Add demo.st to your AI client

Every block below points at https://demo.st/mcp. Pick your client and copy.

Claude Code: one command in your terminal

claude mcp add --transport http demo-st https://demo.st/mcp

Claude Desktop: claude_desktop_config.json

{
  "mcpServers": {
    "demo-st": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://demo.st/mcp"]
    }
  }
}

Cursor: ~/.cursor/mcp.json, or .cursor/mcp.json in a project

{
  "mcpServers": {
    "demo-st": {
      "url": "https://demo.st/mcp"
    }
  }
}

VS Code and GitHub Copilot: .vscode/mcp.json

{
  "servers": {
    "demo-st": {
      "type": "http",
      "url": "https://demo.st/mcp"
    }
  }
}

Zed: Zed settings.json

{
  "context_servers": {
    "demo-st": {
      "url": "https://demo.st/mcp"
    }
  }
}

Windsurf: ~/.codeium/mcp_config.json

{
  "mcpServers": {
    "demo-st": {
      "serverUrl": "https://demo.st/mcp"
    }
  }
}

JetBrains AI Assistant: Settings, Tools, AI Assistant, MCP, New MCP Server, as JSON

{
  "mcpServers": {
    "demo-st": {
      "url": "https://demo.st/mcp"
    }
  }
}

Continue: .continue/mcpServers/neuronto.yaml

name: demo.st
version: 0.0.1
schema: v1
mcpServers:
  - name: demo.st
    type: streamable-http
    url: https://demo.st/mcp

Gemini CLI: ~/.gemini/settings.json

{
  "mcpServers": {
    "demo-st": {
      "httpUrl": "https://demo.st/mcp"
    }
  }
}

Codex CLI: MCP server config

{
  "mcpServers": {
    "demo-st": {
      "type": "http",
      "url": "https://demo.st/mcp"
    }
  }
}

Warp: MCP servers, + Add, paste JSON

{
  "mcpServers": {
    "demo-st": {
      "url": "https://demo.st/mcp"
    }
  }
}

Goose: a one-click extension link

goose://extension?url=https%3A%2F%2Fdemo.st%2Fmcp&type=streamable_http&id=demo-st&name=demo.st

Is demo.st up right now?

It answered our last check on 24 October 2026 in 170 ms. Over 6 checks since 12 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.

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Questions about demo.st

Is there an official demo.st MCP server?

Yes. It is published by demo.st and served from demo.st, the vendor's own domain: https://demo.st/mcp.

How many tools does demo.st have?

13, as returned by the server's own tools/list on 23 September 2026: check_subdomain_availability, clear_site, create_collection, delete_collection, delete_record, get_site_api_key, list_collections, list_records, and 5 more.

Is demo.st down?

It answered our last check on 24 October 2026 in 170 ms. Over 6 checks since 12 September 2026 it answered 6.

How do I add demo.st to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://demo.st/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does demo.st need an API key?

It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.

Where this comes from

Publisher: st.demo. Endpoint host: demo.st. ARD identifier: urn:air:st.demo:mcp:demost. First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.

Is this your server? Get a message the day it stops answering or its tools change: monitoring, 14 days free. Or claim the domain to manage how it is listed.