SentinelScan Cloud Server

A remote Model Context Protocol (MCP) server that exposes hardcoded application security testing data (applications, scans, and issues) so that LLM-based clients can query security posture using natural language.

All server responses are hardcoded mock data intended for demonstration and testing purposes.

Features

The server exposes the following MCP tools:

Tool	Description
get_applications	List all onboarded applications.
get_application_details	Get details for a single application by ID.
get_scans	List scans, optionally filtered by application.
get_scan_details	Get details for a single scan execution.
get_issues	Query issues by application, scan, severity, or status.
get_issue_details	Get full details for a specific issue (file, trace, remediation).
get_dashboard_summary	Aggregate posture summary across all apps.

It also exposes a prompt named sentinelscan_doc that loads usage rules, ID conventions, and allowed enum values into the model's context window.

Transport

The server runs over Streamable HTTP on the /mcp endpoint, which is the standard transport for remote MCP servers. By default it listens on 0.0.0.0:8000.

Authentication

Every request to /mcp must include both of the following Key ID / Key Secret headers:

Header	Value
X-Key-Id	sentinel-demo-key-id-12345
X-Key-Secret	sentinel-demo-key-secret-abcdef67890

These credentials are hardcoded in server.py as the KEY_ID and KEY_SECRET constants. There is no real authentication logic - a Starlette middleware simply compares the incoming headers against those constants and returns HTTP 401 Unauthorized on mismatch.

Example check with curl:

curl -i https://<your-project>.vercel.app/mcp \
  -H "X-Key-Id: sentinel-demo-key-id-12345" \
  -H "X-Key-Secret: sentinel-demo-key-secret-abcdef67890"

Omitting or changing either header returns:

{
  "error": "Unauthorized",
  "message": "Missing or invalid credentials. Provide the 'X-Key-Id' and 'X-Key-Secret' headers on every request to the SentinelScan Cloud MCP Server."
}

Running locally

pip install -r requirements.txt
python server.py

The MCP endpoint will be available at:

http://localhost:8000/mcp

Running with Docker

docker build -t sentinelscan-cloud-mcp .
docker run -p 8000:8000 sentinelscan-cloud-mcp

Deploying to Vercel

The repo is pre-configured to deploy as a Vercel Python serverless function so anyone can use the server remotely over the public internet.

Files involved:

• api/index.py — Vercel entrypoint. Imports the FastMCP instance from server.py and exposes its Streamable-HTTP Starlette app as app, which Vercel's Python runtime serves automatically.
• vercel.json — rewrites /mcp (and /mcp/*) to /api/index so clients can use the canonical MCP path.
• requirements.txt — picked up by Vercel to install the mcp SDK.
• server.py — runs FastMCP in stateless_http=True mode, which is required on serverless platforms since each request is handled by a fresh function invocation and no session state can be preserved between calls.

Deploy via the Vercel CLI:

npm i -g vercel
vercel login
vercel           # preview deployment
vercel --prod    # production deployment

Or deploy from GitHub:

1. Push this repo to GitHub (already done on branch claude/create-remote-mcp-server-PMsnL).
2. Go to https://vercel.com/new and import the repository.
3. Framework preset: Other. Leave build/install commands empty — Vercel will auto-detect requirements.txt and the api/ directory.
4. Click Deploy.

After deployment your MCP endpoint will be:

https://<your-project>.vercel.app/mcp

Note: On Vercel's Hobby plan, serverless functions have a 10 second execution timeout. That's plenty for this server since all responses are hardcoded, but if you later wire it up to slow upstream APIs you may need the Pro plan (60s) or longer.

Connecting an MCP client

Point any MCP-compatible client (Claude Desktop, Claude Code, or a custom agent built on the Anthropic SDK) at the server URL:

{
  "mcpServers": {
    "sentinelscan-cloud": {
      "url": "http://localhost:8000/mcp",
      "transport": "http",
      "headers": {
        "X-Key-Id": "sentinel-demo-key-id-12345",
        "X-Key-Secret": "sentinel-demo-key-secret-abcdef67890"
      }
    }
  }
}

For a Vercel-hosted deployment, replace the URL:

{
  "mcpServers": {
    "sentinelscan-cloud": {
      "url": "https://<your-project>.vercel.app/mcp",
      "transport": "http",
      "headers": {
        "X-Key-Id": "sentinel-demo-key-id-12345",
        "X-Key-Secret": "sentinel-demo-key-secret-abcdef67890"
      }
    }
  }
}

Data

All applications, scans, and issues returned by the server are hardcoded in server.py. There is no external database or network call - the server is entirely self-contained and safe to run anywhere for demos and testing.