demo.st MCP Server

by demo Your server? Claim it

answering

demo.st is answering right now. Last checked 9 min ago. It exposes 13 tools. Last commit 17 Mar 2026.

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

Uptime history 90 days of history · worst day 99%

90 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

221 ms

Response time

average over 24h

Stars

last commit 17 Mar 2026

Nothing serious here today

Today is the operative word: we check demo.st every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://demo.st/mcp

~/.codex/config.toml

[mcp_servers.demost]
url = "https://demo.st/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 13

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

collection

create_collection

Create a document collection (lowercase letter start; letters, numbers, underscores; max 63 chars). Max 20 collections per site.

delete_collection

Delete a document collection and all of its records.

clear

clear_site

Remove deployed site content from your subdomain. Subdomain remains reserved.

collections

list_collections

List document collections for your site (api.demo.st document store).

record

delete_record

Delete a record from a document collection.

records

list_records

List records in a document collection.

release

release_subdomain

Release your reserved subdomain. Deletes the reservation, any deployed site, and all document DB data for that site.

reserve

reserve_subdomain

Reserve a subdomain for the logged-in account. One subdomain per account.

rotate

rotate_site_api_key

Rotate the public site API key. The old key stops working immediately; update your site with the new key.

site

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.

subdomain

check_subdomain_availability

Check if a subdomain name is available on demo.st (e.g. "my-site" → my-site.demo.st).

upload

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).

upsert

upsert_record

Create or update a JSON record in a collection. Pass data as an object. Optional id to upsert a specific record.

Endpoints

URL	Transport	State	Latency	Checked
https://demo.st/mcp	streamable-http	answering	171 ms	9 min ago

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demo.st — questions

Answers built from our own checks of this server.

What can demo.st do?

It exposes 13 tools, read directly from the server on our last check. Among them: check_subdomain_availability, clear_site, create_collection, delete_collection, delete_record, get_site_api_key and 7 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is demo.st working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 221 ms. The bar chart above shows every period we have measured.

How do I connect demo.st?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does demo.st need an API key?

No. demo.st completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 13 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is demo.st?

It answers our handshake in 221 ms on average, which is faster than 61% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is demo.st open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.