demo.st
Reserve a subdomain, upload .zip via MCP, get a link. Optional document API at api.demo.st.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"demost": {
"url": "https://demo.st/mcp"
}
}
}Remote endpoints
https://demo.st/mcpstreamable-httpWhat it can do
Tool inventory
Tools (13)
🟢check_subdomain_availability(name)
Check if a subdomain name is available on demo.st (e.g. "my-site" → my-site.demo.st).
Input Schema
{
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "Subdomain name: letters, numbers, hyphens only; 1–63 chars."
}
},
"required": [
"name"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪reserve_subdomain(subdomain)
Reserve a subdomain for the logged-in account. One subdomain per account.
Input Schema
{
"type": "object",
"properties": {
"subdomain": {
"type": "string",
"description": "Subdomain to reserve (letters, numbers, hyphens; 1–63 chars)."
}
},
"required": [
"subdomain"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡upload_site(zip_base64, file_url, file_path)
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).
Input Schema
{
"type": "object",
"properties": {
"zip_base64": {
"description": "Base64-encoded .zip content. Easiest for agents: create zip locally and pass here (no hosting needed).",
"type": "string"
},
"file_url": {
"description": "Public URL of a .zip file.",
"type": "string",
"format": "uri"
},
"file_path": {
"description": "Local path to a .zip file (for local/stdio MCP only).",
"type": "string"
}
},
"$schema": "http://json-schema.org/draft-07/schema#"
}🔴clear_site
Remove deployed site content from your subdomain. Subdomain remains reserved.
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪release_subdomain
Release your reserved subdomain. Deletes the reservation, any deployed site, and all document DB data for that site.
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢get_site_api_key
Get (or create) the public site API key for your reserved subdomain. Embed this key in your static site and call https://api.demo.st/v1 with Authorization: Bearer <key>. Tenant is scoped by the key — never share another site's key.
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡rotate_site_api_key
Rotate the public site API key. The old key stops working immediately; update your site with the new key.
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢list_collections
List document collections for your site (api.demo.st document store).
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡create_collection(name)
Create a document collection (lowercase letter start; letters, numbers, underscores; max 63 chars). Max 20 collections per site.
Input Schema
{
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "Collection name, e.g. todos or posts."
}
},
"required": [
"name"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🔴delete_collection(name)
Delete a document collection and all of its records.
Input Schema
{
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "Collection name to delete."
}
},
"required": [
"name"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢list_records(collection, limit, offset)
List records in a document collection.
Input Schema
{
"type": "object",
"properties": {
"collection": {
"type": "string",
"description": "Collection name."
},
"limit": {
"description": "Max records to return (default 100).",
"type": "integer",
"minimum": 1,
"maximum": 500
},
"offset": {
"description": "Offset for pagination.",
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"required": [
"collection"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡upsert_record(collection, data, id)
Create or update a JSON record in a collection. Pass data as an object. Optional id to upsert a specific record.
Input Schema
{
"type": "object",
"properties": {
"collection": {
"type": "string",
"description": "Collection name."
},
"data": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {},
"description": "JSON object to store."
},
"id": {
"description": "Optional record id (create or replace).",
"type": "string"
}
},
"required": [
"collection",
"data"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🔴delete_record(collection, id)
Delete a record from a document collection.
Input Schema
{
"type": "object",
"properties": {
"collection": {
"type": "string",
"description": "Collection name."
},
"id": {
"type": "string",
"description": "Record id."
}
},
"required": [
"collection",
"id"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
Evidence